CN118860323A - In-vehicle playback system channel mapping method, device, electronic device, storage medium and vehicle - Google Patents

Abstract

The present invention discloses a channel mapping method, device, electronic device, storage medium and vehicle for a vehicle-mounted playback system. The method comprises: obtaining a playback mode of the vehicle-mounted playback system; when the playback mode is the front-row playback mode, based on the front-row channel mapping relationship, controlling the vehicle-mounted playback system to play panoramic audio; when the playback mode is the rear-row playback mode, based on the rear-row channel mapping relationship, controlling the vehicle-mounted playback system to play panoramic audio; the front-row channel mapping relationship at least comprises: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats and the third row of seats to the channels of the panoramic audio respectively. In the front-row playback mode, the present invention maps the channels of the panoramic audio through the speaker channels of the first row of seats, the second row of seats and the third row of seats, so that the panoramic audio can adapt to the vehicle model with three rows of seats and include the passengers in the third row of seats in the panoramic sound field.

Description

In-vehicle playback system channel mapping method, device, electronic device, storage medium and vehicle

Technical Field

The present invention relates to the technical field of vehicle-related technologies, and in particular to a channel mapping method, device, electronic equipment, storage medium and vehicle for a vehicle-mounted playback system.

Background Art

Currently, models equipped with panoramic sound systems usually adopt a 7.1.4 sound system layout, which includes 7 surround sound channels, 1 subwoofer channel and 4 3D surround sound channels. Among them:

7 car surround sound channels include:

Left front door speaker channel and right front door speaker channel: the combination forms include treble + bass passive or active crossover, treble + midrange passive crossover, bass independent channel control, treble + midrange + bass all independent channel control;

Center channel: The combination forms include full-range speakers, midrange + tweeter active or passive frequency division;

Left rear door speaker channel and right rear door speaker channel: the combination forms include treble + bass passive or active crossover, treble + midrange passive crossover, bass independent channel control, treble + midrange + bass all independent channel control;

Left rear surround channel and right rear surround channel: The combination forms include full-range speakers, mid-range + tweeter active or passive crossover.

1 subwoofer channel, usually an independent subwoofer speaker independent channel.

The 4 3D surround sound channels include: left front 3D, right front 3D, left rear 3D and right rear 3D: the combination forms include full-range speakers, mid-range + tweeter active or passive crossover.

As shown in FIG1 , the mapping method of the existing automotive audio system for panoramic sound content is shown, taking the highest 7.1.4-channel audio content as an example, where the left side is the audio content channel and the right side is the channel corresponding to the in-car playback system.

However, as the size of vehicles increases, more and more models have third-row seats, which makes the existing 7.1.4 audio system layout and the mapping method of panoramic sound content not suitable for models with three rows of seats. Passengers in the third row of seats are outside the panoramic sound field and therefore cannot experience immersive panoramic sound content. At the same time, the existing 7.1.4 audio system layout and the mapping method of panoramic sound content are single and do not take into account the actual needs of drivers. Therefore, how to adjust the audio layout and play the existing 7.1.4 panoramic sound content on the adjusted audio layout to improve the auditory experience of people on board has become an urgent problem to be solved.

Summary of the invention

Based on this, it is necessary to provide a channel mapping method, device, electronic device, storage medium and vehicle for a car playback system to address the technical problem that the panoramic sound content mapping method of the existing technology cannot adapt to vehicles with three rows of seats.

The present invention provides a channel mapping method for a vehicle-mounted playback system, comprising:

Get the playback mode of the car playback system;

When the playback mode is the front row playback mode, based on the front row channel mapping relationship, the in-vehicle playback system is controlled to play the panoramic sound audio, wherein the front row channel mapping relationship is a channel mapping relationship between all speaker channels in the in-vehicle playback system and the panoramic sound audio;

When the playback mode is the rear-seat playback mode, based on a rear-seat channel mapping relationship, the in-vehicle playback system is controlled to play the panoramic sound audio, where the rear-seat channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playback system and the panoramic sound audio;

The front row channel mapping relationship at least includes: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively.

Furthermore, mapping the speaker channels of the in-vehicle playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively specifically includes:

Mapping the front door speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side channels of the panoramic sound audio;

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or corresponding side rear surround channels of the panoramic sound;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side rear surround channels of the panoramic sound audio;

Mapping the front 3D speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side front 3D channels of the panoramic sound audio;

Mapping the middle 3D speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side front 3D channels and the corresponding side rear 3D channels of the panoramic sound audio;

The rear 3D speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear 3D channels of the panoramic sound audio.

Furthermore, mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio specifically includes:

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels of the panoramic sound; or

The rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats are mapped to the corresponding side surround channels and the corresponding side channels of the panoramic sound audio.

Furthermore, mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or the corresponding side rear surround channels of the panoramic sound audio specifically includes:

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels of the panoramic sound; or

The rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side surround channels and the corresponding side rear surround channels of the panoramic sound audio.

Furthermore, the front channel mapping relationship also includes: mapping the panoramic center channel of the panoramic sound audio to the vehicle center speaker channel of the vehicle playback system, and mapping the panoramic subwoofer channel of the panoramic sound audio to multiple vehicle subwoofer speaker channels of the vehicle playback system.

Furthermore, controlling the in-vehicle playback system to play the panoramic sound audio specifically includes:

When the playback mode is the front row playback mode, based on the front row channel mapping relationship, a mapping ratio between a speaker channel of each of the in-vehicle playback systems and a channel of the mapped panoramic sound audio is determined; if a speaker channel of the in-vehicle playback system maps a single channel of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and the channel of the mapped panoramic sound audio is a complete mapping ratio; if a speaker channel of the in-vehicle playback system maps multiple channels of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and each channel of the mapped panoramic sound audio is a partial mapping ratio;

Each speaker channel of the vehicle-mounted playback system is controlled to adopt the mapping ratio to map the channel for playing the panoramic sound audio.

Furthermore, the partial mapping ratio is determined according to the vehicle model, vehicle interior material, arrangement positions of speakers corresponding to speaker channels of the vehicle playback system, and/or the size of the space inside the vehicle.

Further, the rear channel mapping relationship includes: mapping the two side channels of the panoramic sound audio to the rear door speaker channels of the corresponding side of the car playback system facing the second row of seats, mapping the two side surround channels of the panoramic sound audio to the rear surround speaker channels of the corresponding side of the car playback system facing the third row of seats, mapping the two side rear surround channels of the panoramic sound audio to the rear tail surround speaker channels of the corresponding side of the car playback system facing the third row of seats, mapping the two side 3D front channels of the panoramic sound audio to the middle 3D speaker channels of the corresponding side of the car playback system facing the second row of seats, mapping the two side 3D rear channels of the panoramic sound audio to the rear 3D speaker channels of the corresponding side of the car playback system facing the third row of seats, mapping the panoramic center channel of the panoramic sound audio to the car center speaker channel of the car playback system facing the second row of seats, and mapping the panoramic subwoofer channel of the panoramic sound audio to the car subwoofer speaker channel of the car playback system.

The present invention provides a channel mapping device for a vehicle-mounted playback system, comprising:

A playback mode acquisition module, used to acquire the playback mode of the vehicle-mounted playback system;

A front row playback module, configured to control the in-vehicle playback system to play the panoramic sound audio based on a front row channel mapping relationship when the playback mode is the front row playback mode, wherein the front row channel mapping relationship is a channel mapping relationship between all speaker channels in the in-vehicle playback system and the panoramic sound audio;

a rear-seat playing module, configured to control the in-vehicle playing system to play the panoramic sound audio based on a rear-seat channel mapping relationship when the playing mode is the rear-seat playing mode, wherein the rear-seat channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playing system and the panoramic sound audio;

The front row channel mapping relationship at least includes: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively.

The present invention provides an electronic device, comprising:

at least one processor; and,

a memory communicatively connected to at least one of the processors; wherein,

The memory stores instructions that can be executed by at least one of the processors, and the instructions are executed by at least one of the processors to enable the at least one of the processors to execute the channel mapping method for the in-vehicle playback system as described above.

The present invention provides a storage medium, which stores computer instructions. When a computer executes the computer instructions, it is used to execute all steps of the channel mapping method of the vehicle-mounted playback system as described above.

The present invention provides a vehicle, comprising the above-mentioned vehicle-mounted playback system channel mapping device, or the above-mentioned electronic device.

In the front row playback mode, the present invention maps the channels of the panoramic sound audio through the speaker channels of the first row of seats, the second row of seats and the third row of seats of the vehicle playback system, so that the panoramic sound audio can adapt to the vehicle model with three rows of seats, and the passengers in the third row of seats are included in the panoramic sound field, so that all passengers in the vehicle can experience immersive panoramic sound content.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of channel mapping relationship in the prior art;

FIG2 is a flowchart of a channel mapping method for a vehicle-mounted playback system according to an embodiment of the present invention;

FIG3 is a flowchart of a channel mapping method for a vehicle-mounted playback system according to another embodiment of the present invention;

FIG4 is a schematic diagram of the mapping relationship of the front channel in the best embodiment of the present invention;

FIG5 is a schematic diagram of a rear channel mapping relationship in a preferred embodiment of the present invention;

FIG6 is a schematic diagram of a channel mapping device for a vehicle-mounted playback system according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of the hardware structure of an electronic device according to the present invention.

DETAILED DESCRIPTION

The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

In order to solve the technical problems existing in the prior art, the present invention provides a channel mapping method, device, electronic equipment, storage medium and vehicle for a vehicle-mounted playback system.

First, some nouns or terms involved in the claims and description of the present invention are explained below.

Upmixing: Through channel duplication, one channel in panoramic sound, other multi-channel audio formats or stereo audio is split and mapped to two or more channels of the car audio system to match the audio output channels. For example, the left channel in panoramic sound, other multi-channel audio formats or stereo audio is usually divided into a bass channel and a mid-high channel, or a bass channel, a mid-range channel and a treble channel.

Downmixing: Mapping multiple channels of panoramic sound or other multi-channel audio formats to one channel of the car audio system.

Channel Mapping: Send the specified channel audio to the specified hardware channel.

FIG2 is a flowchart of a channel mapping method for a vehicle-mounted playback system according to an embodiment of the present invention, comprising:

Step S201, obtaining the playback mode of the vehicle-mounted playback system;

Step S202, when the playback mode is the front row playback mode, based on the front row channel mapping relationship, controlling the in-vehicle playback system to play the panoramic sound audio, wherein the front row channel mapping relationship is a channel mapping relationship between all speaker channels in the in-vehicle playback system and the panoramic sound audio;

Step S203, when the playback mode is the rear-seat playback mode, based on the rear-seat channel mapping relationship, controlling the in-vehicle playback system to play the panoramic sound audio, wherein the rear-seat channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playback system and the panoramic sound audio;

The front row channel mapping relationship at least includes: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively.

Specifically, the present invention can be applied to electronic devices of a vehicle having processing capabilities, such as an electronic control unit (ECU) or an extended domain control unit (XCU).

First, when the user selects a play mode, step S201 is triggered. For example, the user presses a front row play selection button or a back row play selection button. The play modes include a front row play mode and a back row play mode.

When the front row playback mode is selected, for example, the user presses the front row playback selection button, triggering step S202, the electronic device controls the in-vehicle playback system to play the panoramic audio based on the front row channel mapping relationship, the front row channel mapping relationship being the channel mapping relationship between all speaker channels in the in-vehicle playback system and the panoramic audio. The front row channel mapping relationship at least includes: mapping the speaker channels of the in-vehicle playback system facing the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic audio respectively.

In some embodiments, the panoramic sound audio is a 7.1.4 panoramic sound audio signal, and the corresponding sound layout of the in-vehicle playback system is a 9.3.6 sound system layout.

The speaker channels of the in-vehicle playback system are the channels of the speakers that play toward the first row of seats, the second row of seats, and the third row of seats in the vehicle. Each speaker channel controls the corresponding speaker to play. The electronic device controls the in-vehicle playback system to play the panoramic audio based on the front channel mapping relationship. That is, the information of each channel parsed from the panoramic audio signal is played by the speaker corresponding to the speaker channel of the in-vehicle playback system indicated by the front channel mapping relationship.

Through the front row playback mode, the channels of the panoramic sound audio are mapped to the speaker channels of the in-vehicle playback system facing the first row of seats, the second row of seats, and the third row of seats, so that passengers in all positions in the vehicle are included in the panoramic sound field.

When the playback mode is the rear-seat playback mode, for example, when the user presses the rear-seat play button, step S203 is executed to control the vehicle playback system to play the panoramic sound audio based on the rear-seat channel mapping relationship, where the rear-seat channel mapping relationship is the channel mapping relationship between some speaker channels in the vehicle playback system and the panoramic sound audio.

For the rear-seat playback mode, you only need to map the channels of the panoramic audio to some of the speaker channels in the car playback system.

It should be noted that step S202 and step S203 are in parallel relationship. When the play mode is the front row play mode, step S202 is executed, and when the play mode is the back row play mode, step S203 is executed.

In the front row playback mode, the present invention maps the channels of the panoramic sound audio through the speaker channels of the first row of seats, the second row of seats and the third row of seats of the vehicle playback system, so that the panoramic sound audio can adapt to the vehicle model with three rows of seats, and the passengers in the third row of seats are included in the panoramic sound field, so that all passengers in the vehicle can experience immersive panoramic sound content.

FIG3 is a flowchart of a channel mapping method for a vehicle-mounted playback system in another embodiment of the present invention, comprising:

Step S301, obtaining the playback mode of the vehicle-mounted playback system;

Step S302, when the playback mode is the front row playback mode, based on the front row channel mapping relationship, controlling the in-vehicle playback system to play the panoramic sound audio, the front row channel mapping relationship is the channel mapping relationship between all speaker channels and the panoramic sound audio in the in-vehicle playback system, and the front row channel mapping relationship at least includes:

Mapping the front door speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side channels of the panoramic sound audio;

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or corresponding side rear surround channels of the panoramic sound;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side rear surround channels of the panoramic sound audio;

Mapping the front 3D speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side front 3D channels of the panoramic sound audio;

Mapping the middle 3D speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side front 3D channels and the corresponding side rear 3D channels of the panoramic sound audio;

The rear 3D speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear 3D channels of the panoramic sound audio.

In one embodiment, mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio specifically includes:

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels of the panoramic sound; or

The rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats are mapped to the corresponding side surround channels and the corresponding side channels of the panoramic sound audio.

In one embodiment, mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or the corresponding side rear surround channels of the panoramic sound audio specifically includes:

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels of the panoramic sound; or

The rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side surround channels and the corresponding side rear surround channels of the panoramic sound audio.

In one of the embodiments, the front channel mapping relationship also includes: mapping the panoramic center channel of the panoramic sound audio to the vehicle center speaker channel of the vehicle playback system, and mapping the panoramic subwoofer channel of the panoramic sound audio to multiple vehicle subwoofer speaker channels of the vehicle playback system.

In one embodiment, controlling the in-vehicle playback system to play the panoramic audio specifically includes:

When the playback mode is the front row playback mode, based on the front row channel mapping relationship, a mapping ratio between a speaker channel of each of the in-vehicle playback systems and a channel of the mapped panoramic sound audio is determined; if a speaker channel of the in-vehicle playback system maps a single channel of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and the channel of the mapped panoramic sound audio is a complete mapping ratio; if a speaker channel of the in-vehicle playback system maps multiple channels of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and each channel of the mapped panoramic sound audio is a partial mapping ratio;

Each speaker channel of the vehicle-mounted playback system is controlled to adopt the mapping ratio to map the channel for playing the panoramic sound audio.

In one embodiment, the partial mapping ratio is determined according to the vehicle model, the material of the vehicle interior, the arrangement position of the speaker channels of the vehicle playback system corresponding to the speakers, and/or the size of the space inside the vehicle.

Step S303, when the playback mode is the rear-row playback mode, based on the rear-row channel mapping relationship, control the in-vehicle playback system to play the panoramic sound audio, the rear-row channel mapping relationship being the channel mapping relationship between some speaker channels and the panoramic sound audio in the in-vehicle playback system, the rear-row channel mapping relationship comprising: mapping the two side channels of the panoramic sound audio to the rear door speaker channels of the in-vehicle playback system corresponding to the side facing the second row of seats, mapping the two side surround channels of the panoramic sound audio to the rear surround speaker channels of the in-vehicle playback system corresponding to the side facing the third row of seats, mapping the two side rear surround channels of the panoramic sound audio to the rear surround speaker channels of the in-vehicle playback system corresponding to the side facing the third row of seats, The channels are mapped to the rear surround speaker channels of the corresponding side of the in-car playback system facing the third row of seats, the 3D front channels on both sides of the panoramic sound audio are mapped to the middle 3D speaker channels of the corresponding side of the in-car playback system facing the second row of seats, the 3D rear channels on both sides of the panoramic sound audio are mapped to the rear 3D speaker channels of the corresponding side of the in-car playback system facing the third row of seats, the panoramic center channel of the panoramic sound audio is mapped to the in-car center speaker channel of the in-car playback system facing the second row of seats, and the panoramic subwoofer channel of the panoramic sound audio is mapped to the in-car subwoofer speaker channel of the in-car playback system.

Specifically, the in-vehicle playback system includes a plurality of speaker channels, and each speaker channel of the in-vehicle playback system corresponds to at least one speaker.

When the user selects a play mode, step S301 is triggered. For example, the user presses a front row play selection button or a back row play selection button. The play modes include a front row play mode and a back row play mode.

When the playback mode is the front row playback mode, for example, when the user presses the front row play button, step S302 is executed to determine that the channel mapping relationship between the in-vehicle playback system and the panoramic sound audio is the front row channel mapping relationship. The front row channel mapping relationship at least includes:

Mapping the front door speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side channels of the panoramic sound audio;

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or corresponding side rear surround channels of the panoramic sound;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side rear surround channels of the panoramic sound audio;

Mapping the front 3D speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side front 3D channels of the panoramic sound audio;

Mapping the middle 3D speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side front 3D channels and the corresponding side rear 3D channels of the panoramic sound audio;

The rear 3D speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear 3D channels of the panoramic sound audio.

In some embodiments, the front door speaker channels on both sides of the in-vehicle playback system facing the first row of seats are mapped to the corresponding side channels of the panoramic sound audio, specifically: the left front door speaker channel of the in-vehicle playback system facing the first row of seats is mapped to the left channel of the panoramic sound audio, and the right front door speaker channel of the in-vehicle playback system facing the first row of seats is mapped to the right channel of the panoramic sound audio.

In some embodiments, the speaker corresponding to the left front door speaker channel of the in-vehicle playback system is arranged on the left side of the first row of seats, and the speaker corresponding to the right front door speaker channel of the in-vehicle playback system is arranged on the right side of the first row of seats.

In some embodiments, the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear surround channels of the panoramic sound audio, specifically: the left rear surround speaker channel of the in-vehicle playback system facing the third row of seats is mapped to the left rear surround channel of the panoramic sound audio, and the right rear surround speaker channel of the in-vehicle playback system facing the third row of seats is mapped to the right rear surround channel of the panoramic sound audio.

In some embodiments, the speaker corresponding to the left rear surround speaker channel of the in-vehicle playback system is arranged near the left side of the tailgate or on the left side of the tailgate, and the speaker corresponding to the right rear surround speaker channel of the in-vehicle playback system is arranged near the right side of the tailgate or on the right side of the tailgate.

In some embodiments, the front 3D speaker channels on both sides of the in-vehicle playback system facing the first row of seats are mapped to the corresponding side front 3D channels of the panoramic sound audio, specifically: the left front 3D speaker channel of the in-vehicle playback system facing the first row of seats is mapped to the left front 3D channel of the panoramic sound audio, and the right front 3D speaker channel of the in-vehicle playback system facing the first row of seats is mapped to the right front 3D channel of the panoramic sound audio.

In some embodiments, the center 3D speaker channels on both sides of the in-vehicle playback system facing the second row of seats are mapped to the corresponding side front 3D channels and the corresponding side rear 3D channels of the panoramic sound audio, specifically: the left center 3D speaker channel of the in-vehicle playback system facing the second row of seats is mapped to the left front 3D channel and the left rear 3D channel of the panoramic sound audio, and the right center 3D speaker channel of the in-vehicle playback system facing the second row of seats is mapped to the right front 3D channel and the right rear 3D channel of the panoramic sound audio.

In some embodiments, the rear 3D speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear 3D channels of the panoramic sound audio, specifically: the left rear 3D speaker channel of the in-vehicle playback system facing the third row of seats is mapped to the left rear 3D channel of the panoramic sound audio, and the right rear 3D speaker channel of the in-vehicle playback system facing the third row of seats is mapped to the right rear 3D channel of the panoramic sound audio.

In some embodiments, the speakers corresponding to the front 3D speaker channels of the in-vehicle playback system are arranged at the top of the first row or near the top of the A-pillar, the speakers corresponding to the middle 3D speaker channels of the in-vehicle playback system are arranged at the top of the second row area or near the top of the B-pillar and C-pillar, and the speakers corresponding to the rear 3D speaker channels of the in-vehicle playback system are arranged at the top behind the second row or near the top of the C-pillar and D-pillar.

In some embodiments, the speakers corresponding to the left front 3D speaker channel are arranged on the top left side of the first row or on the left A-pillar near the top, the speakers corresponding to the right front 3D speaker channel are arranged on the top right side of the first row or on the right A-pillar near the top, the speakers corresponding to the left middle 3D speaker channel are arranged on the top left side of the second row area or on the left B-pillar and on the left C-pillar near the top, the speakers corresponding to the right middle 3D speaker channel are arranged on the top right side of the second row area or on the right B-pillar and on the right C-pillar near the top, the speakers corresponding to the left rear 3D speaker channel are arranged on the top left side of the second row back or on the left C-pillar and on the left D-pillar near the top, and the speakers corresponding to the right rear 3D speaker channel are arranged on the top right side of the second row back or on the right C-pillar and on the right D-pillar near the top.

This embodiment improves the listening experience of panoramic sound in the car audio system, making the position movement of different elements in the panoramic sound content more delicate. At the same time, in a three-row seat car, each seat in the three rows can be in the panoramic sound field, taking into account the experience of each passenger.

In one embodiment, mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio specifically includes:

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels of the panoramic sound; or

The rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats are mapped to the corresponding side surround channels and the corresponding side channels of the panoramic sound audio.

Specifically, there are two ways to map the rear door speaker channels of the car playback system:

1) Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels of the panoramic sound;

2) Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and corresponding side channels of the panoramic sound audio.

Specifically, the mapping method of the rear door speaker channels of the in-vehicle playback system may be selected according to the vehicle model, the material of the vehicle interior, the arrangement position of the speaker channels of the in-vehicle playback system corresponding to the speakers, and/or the size of the space in the vehicle.

In some embodiments, the speaker corresponding to the left rear door speaker channel is arranged on the left door of the second row of seats, the speaker corresponding to the right rear door speaker channel is arranged on the right door of the second row of seats, the speaker corresponding to the left rear surround speaker channel is arranged on the left side of the rear side panel, and the speaker corresponding to the right rear surround speaker channel is arranged on the right side of the rear side panel.

This embodiment provides two mapping modes for the rear door speaker channels to meet the requirements of different vehicle models.

In one embodiment, mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or the corresponding side rear surround channels of the panoramic sound audio specifically includes:

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels of the panoramic sound; or

The rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side surround channels and the corresponding side rear surround channels of the panoramic sound audio.

Specifically, there are two ways to map the rear surround speaker channels of the car playback system:

1) Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels of the panoramic sound;

2) Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and the corresponding side rear surround channels of the panoramic sound audio.

Specifically, the mapping method of the rear surround speaker channels of the in-vehicle playback system can be selected according to the vehicle model, the material of the vehicle interior, the arrangement position of the speaker channels of the in-vehicle playback system corresponding to the speakers and/or the size of the space in the vehicle.

In some embodiments, the speaker corresponding to the left rear surround speaker channel is arranged on the left side of the rear side surround, the speaker corresponding to the right rear surround speaker channel is arranged on the right side of the rear side surround, the speaker corresponding to the left rear tail surround speaker channel is arranged on the left side of the left side surround near the rear tailgate or on the left side of the rear tailgate, and the speaker corresponding to the right rear tail surround speaker channel is arranged on the right side surround near the rear tailgate or on the right side of the rear tailgate.

This embodiment provides two mapping modes for the rear surround speaker channels to meet the requirements of different vehicle models.

In one of the embodiments, the front channel mapping relationship also includes: mapping the panoramic center channel of the panoramic sound audio to the vehicle center speaker channel of the vehicle playback system, and mapping the panoramic subwoofer channel of the panoramic sound audio to multiple vehicle subwoofer speaker channels of the vehicle playback system.

In some embodiments, the speaker corresponding to the vehicle center speaker channel is arranged on the dashboard.

In some embodiments, the vehicle-mounted subwoofer speaker channels are three, the subwoofer speaker is also called a subwoofer, and the subwoofer speaker channel is also called a subwoofer speaker channel.

This embodiment maps the panoramic center channel of the panoramic sound audio to the vehicle center speaker channel to meet the center channel requirements. At the same time, the panoramic subwoofer channel is mapped to multiple vehicle subwoofer speaker channels to meet the needs of vehicles with multiple subwoofer speaker channels, making the bass of the whole vehicle more uniform.

Then in step S302, based on the front channel mapping relationship, the in-vehicle playback system is controlled to play the panoramic sound audio.

Among them, some channels of panoramic audio are mapped to the speaker channels of multiple car playback systems respectively, and similarly, the speaker channels of one car playback system are also mapped to the channels of multiple panoramic audio. Therefore, the mapping ratio of channel mapping needs to be considered.

In one embodiment, controlling the in-vehicle playback system to play the panoramic audio specifically includes:

When the playback mode is the front row playback mode, based on the front row channel mapping relationship, a mapping ratio between a speaker channel of each of the in-vehicle playback systems and a channel of the mapped panoramic sound audio is determined; if a speaker channel of the in-vehicle playback system maps a single channel of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and the channel of the mapped panoramic sound audio is a complete mapping ratio; if a speaker channel of the in-vehicle playback system maps multiple channels of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and each channel of the mapped panoramic sound audio is a partial mapping ratio;

Each speaker channel of the vehicle-mounted playback system is controlled to adopt the mapping ratio to map the channel for playing the panoramic sound audio.

Specifically, the mapping ratio is a data volume acquisition ratio of the speaker channels of the in-vehicle playback system that acquire data from the mapped channels of the panoramic audio.

If the speaker channel of the in-vehicle playback system maps a single channel of the panoramic audio, the mapping ratio of the speaker channel of the in-vehicle playback system to the mapped channel of the panoramic audio is a complete mapping ratio, wherein the complete mapping ratio is 100%, that is, 100% of the data of the speaker channel of the in-vehicle playback system is taken from the data of the mapped single channel of the panoramic audio.

If the speaker channel of the in-car playback system maps multiple channels of the panoramic audio, the mapping ratio of the speaker channel of the in-car playback system to each of the mapped panoramic audio channels is a partial mapping ratio. The partial mapping ratio is 1 to 99%. The specific proportional relationship is determined by pre-calibration according to the actual listening experience. That is, the data of the speaker channel of the in-car playback system obtains the mapping ratio data from the channel of each panoramic audio.

For example, if a speaker channel of an in-car playback system is mapped by two channels of panoramic sound audio, where the mapping ratio of one channel of the panoramic sound audio is 30% and the other is 70%, then 30% of the data of the speaker channel of the in-car playback system is obtained from the data of the channel of the panoramic sound audio with a mapping ratio of 30%, and 70% of the data of the channel of the in-car playback system is obtained from the data of the channel of the panoramic sound audio with a mapping ratio of 70%.

This embodiment implements channel mapping between speaker channels of the in-vehicle playback system and multiple panoramic sound audios through mapping ratios.

In one embodiment, the partial mapping ratio is determined according to the vehicle model, the material of the vehicle interior, the arrangement position of the speaker channels of the vehicle playback system corresponding to the speakers, and/or the size of the space inside the vehicle.

Specifically, the partial mapping ratio of the channels of each in-vehicle playback system to the mapped channels of the panoramic sound audio is determined through experimental calibration according to the vehicle model, vehicle interior material, the layout position of the speakers corresponding to the speaker channels of the in-vehicle playback system and/or the size of the space in the vehicle.

When the playback mode is the rear-row playback mode, for example, when the user presses the rear-row play button, step S303 is executed to control the in-vehicle playback system to play the panoramic sound audio based on the rear-row channel mapping relationship, wherein the rear-row channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playback system and the panoramic sound audio, and the rear-row channel mapping relationship includes: mapping the two side channels of the panoramic sound audio to the rear door speaker channels of the in-vehicle playback system corresponding to the side facing the second row of seats, mapping the two side surround channels of the panoramic sound audio to the rear surround speaker channels of the in-vehicle playback system corresponding to the side facing the third row of seats, and mapping the panoramic sound audio to the rear surround speaker channels of the in-vehicle playback system corresponding to the side facing the third row of seats. The rear surround channels on both sides of the audio are mapped to the rear surround speaker channels on the corresponding side of the car playback system facing the third row of seats, the 3D front channels on both sides of the panoramic sound audio are mapped to the middle 3D speaker channels on the corresponding side of the car playback system facing the second row of seats, the 3D rear channels on both sides of the panoramic sound audio are mapped to the rear 3D speaker channels on the corresponding side of the car playback system facing the third row of seats, the panoramic center channel of the panoramic sound audio is mapped to the car center speaker channel of the car playback system facing the second row of seats, and the panoramic subwoofer channel of the panoramic sound audio is mapped to the car subwoofer speaker channel of the car playback system.

In the in-car playback system, a second row center speaker is added as the in-car center speaker channel for the second row of seats.

In some embodiments, the second row center speaker is arranged between the first row seats and the second row seats.

Then, in step S303, when the playback mode is the rear-seat playback mode, based on the rear-seat channel mapping relationship, the in-vehicle playback system is controlled to play the panoramic sound audio.

Specifically, when switching to rear-seat playback mode, the first-row seat speakers are disabled, and the second-row center speakers are enabled, working together with all rear cabin speakers to form a sound system layout that corresponds one-to-one to the panoramic audio channels.

It should be noted that step S302 and step S303 are in parallel relationship. When the play mode is the front row play mode, step S302 is executed, and when the play mode is the back row play mode, step S303 is executed.

This embodiment improves the listening experience of panoramic sound in the car audio system, and the position movement of different elements in the content is more delicate. In a three-row seat car, each seat in the three rows can be in the panoramic sound field, taking into account the experience of each passenger. When there are two rows of center speakers, the rear cabin entertainment mode is enabled, and the rear row can experience the panoramic sound experience without loss of effect, and it does not affect the normal communication of the first row of passengers.

As the best embodiment of the present invention, the in-car playback system is a 9.3.6 sound system including 9 full-car surround sound channels, 3 subwoofer channels and 6 3D surround sound channels.

Among them, the 9 full-car surround sound channels include:

Left front door speaker channel and right front door speaker channel, the corresponding speakers are arranged in the first row: the combination forms include treble + bass passive or active crossover, treble + midrange passive crossover, bass independent channel control, treble + midrange + bass all independent channel control;

Center speaker channel, the corresponding speaker is arranged on the instrument panel (IP) IP station: the combination form includes full-range speakers, mid-range + tweeter active or passive frequency division;

The left rear door speaker channel and the right rear door speaker channel, the corresponding speakers are arranged on the doors on both sides of the second row: the combination forms include treble + bass passive or active crossover, treble + midrange passive crossover, bass independent channel control, treble + midrange + bass all independent channel control;

Left rear surround speaker channel and right rear surround speaker channel, the corresponding speakers are arranged on both sides of the rear side: the combination forms include tweeter + bass passive or active crossover, tweeter + midrange passive crossover, bass independent channel control, tweeter + midrange + bass all independent channel control;

Left rear surround speaker channel and right rear surround speaker channel, the corresponding speakers are arranged on the side near the rear tailgate or on the rear tailgate: the combination form includes full-range speakers, mid-range + tweeter active or passive frequency division;

There are 3 subwoofer speaker channels, and the corresponding subwoofer speakers are not limited to any position. It is best to place them in the first row or the trunk. All 3 subwoofer speakers are controlled by independent channels.

6 3D surround speaker channels including:

Left front 3D speaker channel, right front 3D speaker channel, the corresponding speakers are arranged at the top of a row or near the top of the A-pillar: the combination form includes full-range speakers, midrange + tweeter active or passive frequency division;

Left center 3D and right center 3D speaker channels, the corresponding speakers are arranged at the top of the second row area or near the top of the B-pillar and C-pillar: the combination form includes full-range speakers, midrange + tweeter active or passive frequency division;

The left rear 3D and right rear 3D speaker channels, the corresponding speakers are arranged at the top behind the second row or near the top of the C-pillar and D-pillar: the combination forms include full-range speakers, mid-range + tweeter active or passive crossover.

In addition, the rear cabin of the passenger compartment adopts a 7.1.4 layout, that is, on the basis of the 9.3.6 sound system layout, two rows of center speakers are added, arranged between the first and second rows of seats, and the corresponding channels are also center speaker channels. When switched to the rear mode, the first row of speakers is disabled, and the second row of center speakers is enabled, which cooperates with all the rear cabin speakers to form a 7.1.4 sound system layout.

The panoramic audio signal is a 7.1.4 panoramic audio signal. Its mapping relationship with the 9.3.6 sound system layout is shown in Figure 4. At the same time, since the in-vehicle panoramic sound content supports up to 7.1.4, matching the 9.3.6 sound system layout requires channel upmixing. The method is as follows:

The left and right front door speaker channels of the in-car playback system (car audio) are mapped to the left and right channels of the panoramic audio, with a mapping ratio of 100%;

The center speaker channel of the car playback system is mapped to the center channel, and the mapping ratio is 100%;

There are two ways to map the left rear door speaker channel and the right rear door speaker channel of the car playback system, including:

1. Map the left surround and right surround channels, with a mapping ratio of 100%;

2. Simultaneously map the left channel and left surround channel to the left rear door speaker channel, and map the right channel and right surround channel to the right rear door speaker channel. The synchronous mapping ratio is determined according to the actual listening experience, and the mapping ratio range is 1%-99%;

There are two ways to map the left and right rear surround speaker channels, including:

1. Map the left surround and right surround channels, with a mapping ratio of 100%;

2. Simultaneously map the left surround channel and the left rear surround channel to the left rear surround speaker channel, and map the right surround channel and the right rear surround channel to the right rear surround speaker channel. The synchronous mapping ratio is determined according to the actual listening experience, and the mapping ratio range is 1%-99%;

The left rear surround channel and the right rear surround channel are mapped to the left rear surround channel and the right rear surround channel respectively, and the mapping ratio is 100%.

The subwoofer channels are mapped to the three independent subwoofer speaker channels in the car.

The left front 3D speaker channel and the right front 3D speaker channel map the left front 3D and right front 3D channels, and the mapping ratio is 100%.

The left center 3D speaker channel and the right center 3D speaker channel are mapped by simultaneously mapping the left front 3D and left rear 3D channels to the left center 3D speaker channel, and simultaneously mapping the right front 3D and right rear 3D channels to the right center 3D speaker channel. The synchronous mapping ratio is determined according to the actual listening experience, and the mapping ratio ranges from 1% to 99%.

The left rear 3D speaker channel and the right rear 3D speaker channel map the left rear 3D and right rear 3D channels, and the mapping ratio is 100%.

When the car audio system is equipped with a second-row center speaker and the rear cabin entertainment mode is enabled, the front row speakers will be turned off, so that the rear passengers can be entertained without disturbing the front passengers. At this time, based on the 9.3.6 audio system layout, the rear cabin entertainment mode meets the 7.1.4 audio system layout, so that the panoramic sound effect is not lost and the user experience is improved. The channel mapping relationship is shown in Figure 5.

This embodiment improves the listening experience of the panoramic sound of the car audio system, making the bass of the whole car more uniform and the position movement of different elements in the content more delicate. In a three-row seat car, each seat in the three rows can be in the panoramic sound field, taking into account the experience of each passenger. At the same time, when there are two rows of center speakers and the 9.3.6 audio system layout is met, the rear cabin entertainment mode is enabled, and the back row can experience the 7.1.4 panoramic sound experience without loss of effect, and does not affect the normal communication of passengers in one row. This embodiment expands the layout of the car's panoramic sound system from the currently mostly used 7.1.4 to 9.3.6, so that the panoramic sound can be expressed more delicately, and in a three-row seat car model, each passenger can be in the panoramic sound field, improving the overall listening experience. Enabling the rear cabin entertainment mode under this layout can not only not damage the panoramic sound effect, but also not disturb the normal communication of the front row passengers, making the car's panoramic sound more flexible.

Based on the same inventive concept, FIG6 is a schematic diagram of a channel mapping device for a vehicle-mounted playback system according to an embodiment of the present invention, comprising:

The playback mode acquisition module 601 is used to acquire the playback mode of the vehicle-mounted playback system;

A front row playing module 602, configured to control the in-vehicle playing system to play the panoramic sound audio based on a front row channel mapping relationship when the playing mode is the front row playing mode, wherein the front row channel mapping relationship is a channel mapping relationship between all speaker channels in the in-vehicle playing system and the panoramic sound audio;

A rear-seat playing module 603 is used to control the in-vehicle playing system to play the panoramic sound audio based on a rear-seat channel mapping relationship when the playing mode is the rear-seat playing mode, wherein the rear-seat channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playing system and the panoramic sound audio;

The front row channel mapping relationship at least includes: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively.

In the front row playback mode, the present invention maps the channels of the panoramic sound audio through the speaker channels of the first row of seats, the second row of seats and the third row of seats of the vehicle playback system, so that the panoramic sound audio can adapt to the vehicle model with three rows of seats, and the passengers in the third row of seats are included in the panoramic sound field, so that all passengers in the vehicle can experience immersive panoramic sound content.

In one embodiment, mapping the speaker channels of the in-vehicle playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively includes:

Mapping the front door speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side channels of the panoramic sound audio;

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or corresponding side rear surround channels of the panoramic sound;

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side rear surround channels of the panoramic sound audio;

Mapping the front 3D speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side front 3D channels of the panoramic sound audio;

Mapping the middle 3D speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side front 3D channels and the corresponding side rear 3D channels of the panoramic sound audio;

The rear 3D speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear 3D channels of the panoramic sound audio.

In one embodiment, mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio specifically includes:

Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels of the panoramic sound; or

The rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats are mapped to the corresponding side surround channels and the corresponding side channels of the panoramic sound audio.

In one embodiment, mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or the corresponding side rear surround channels of the panoramic sound audio specifically includes:

Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels of the panoramic sound; or

The rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side surround channels and the corresponding side rear surround channels of the panoramic sound audio.

In one of the embodiments, the front channel mapping relationship also includes: mapping the panoramic center channel of the panoramic sound audio to the vehicle center speaker channel of the vehicle playback system, and mapping the panoramic subwoofer channel of the panoramic sound audio to multiple vehicle subwoofer speaker channels of the vehicle playback system.

In one embodiment, controlling the in-vehicle playback system to play the panoramic audio specifically includes:

When the playback mode is the front row playback mode, based on the front row channel mapping relationship, a mapping ratio between a speaker channel of each of the in-vehicle playback systems and a channel of the mapped panoramic sound audio is determined; if a speaker channel of the in-vehicle playback system maps a single channel of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and the channel of the mapped panoramic sound audio is a complete mapping ratio; if a speaker channel of the in-vehicle playback system maps multiple channels of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and each channel of the mapped panoramic sound audio is a partial mapping ratio;

Each speaker channel of the vehicle-mounted playback system is controlled to adopt the mapping ratio to map the channel for playing the panoramic sound audio.

In one embodiment, the partial mapping ratio is determined according to the vehicle model, the material of the vehicle interior, the arrangement position of the speaker channels of the vehicle playback system corresponding to the speakers, and/or the size of the space inside the vehicle.

In one embodiment, the rear channel mapping relationship includes: mapping the two side channels of the panoramic sound audio to the rear door speaker channels of the corresponding side of the vehicle playback system facing the second row of seats, mapping the two side surround channels of the panoramic sound audio to the rear surround speaker channels of the corresponding side of the vehicle playback system facing the third row of seats, mapping the two side rear surround channels of the panoramic sound audio to the rear tail surround speaker channels of the corresponding side of the vehicle playback system facing the third row of seats, mapping the two side 3D front channels of the panoramic sound audio to the middle 3D speaker channels of the corresponding side of the vehicle playback system facing the second row of seats, mapping the two side 3D rear channels of the panoramic sound audio to the rear 3D speaker channels of the corresponding side of the vehicle playback system facing the third row of seats, mapping the panoramic center channel of the panoramic sound audio to the vehicle center speaker channel of the vehicle playback system facing the second row of seats, and mapping the panoramic subwoofer channel of the panoramic sound audio to the vehicle subwoofer speaker channel of the vehicle playback system.

Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

FIG7 is a schematic diagram of the hardware structure of an electronic device of the present invention, comprising:

at least one processor 701; and,

A memory 702 that is communicatively connected to at least one of the processors 701; wherein,

The memory 702 stores instructions that can be executed by at least one of the processors. The instructions are executed by at least one of the processors so that the at least one processor can execute the channel mapping method for the in-vehicle playback system as described above.

FIG. 7 takes a processor 701 as an example.

The electronic device may further include: an input device 703 and a display device 704 .

The processor 701, the memory 702, the input device 703 and the display device 704 may be connected via a bus or other means, and the figure takes the connection via a bus as an example.

The memory 702, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions/modules corresponding to the channel mapping method of the in-vehicle playback system in the embodiment of the present application, for example, the method flow shown in Figures 2 and 3. The processor 701 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 702, that is, implementing the channel mapping method of the in-vehicle playback system in the above embodiment.

The memory 702 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the channel mapping method of the in-vehicle playback system, etc. In addition, the memory 702 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 702 may optionally include a memory remotely arranged relative to the processor 701, and these remote memories may be connected to a device for executing the channel mapping method of the in-vehicle playback system via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The input device 703 can receive user clicks and generate signal inputs related to user settings and function control of the channel mapping method of the in-vehicle playback system. The display device 704 can include display devices such as a display screen.

The one or more modules are stored in the memory 702 , and when executed by the one or more processors 701 , the channel mapping method of the in-vehicle playback system in any of the above method embodiments is executed.

In the front row playback mode, the present invention maps the channels of the panoramic sound audio through the speaker channels of the first row of seats, the second row of seats and the third row of seats of the vehicle playback system, so that the panoramic sound audio can adapt to the vehicle model with three rows of seats, and the passengers in the third row of seats are included in the panoramic sound field, so that all passengers in the vehicle can experience immersive panoramic sound content.

An embodiment of the present invention provides a storage medium, wherein the storage medium stores computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the channel mapping method for a vehicle-mounted playback system as described above.

In the context of the present disclosure, a storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. The storage medium may be a machine-readable signal medium or a machine-readable storage medium. Alternatively, the storage medium may be a non-temporary computer-readable storage medium, for example, a non-temporary computer-readable storage medium may be a ROM, a random access memory (Random Access Memory, RAM), a compact disc read-only memory (Compact Disc ROM, CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

An embodiment of the present invention provides a vehicle, including the channel mapping device of the vehicle playback system as described above, or the electronic device as described above. It can be understood that the vehicle may also include: a processor, a memory and a computer program. Among them, the computer program is stored in the memory, and is configured to be executed by the processor to implement the vehicle playback system channel mapping method provided by the embodiment of the present disclosure. Among them, the processor and the memory have been described in the embodiment shown in Figure 7 and will not be repeated here.

The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims (12)

1. A channel mapping method for a vehicle-mounted playback system, comprising: Get the playback mode of the car playback system; When the playback mode is the front row playback mode, based on the front row channel mapping relationship, the in-vehicle playback system is controlled to play the panoramic sound audio, wherein the front row channel mapping relationship is a channel mapping relationship between all speaker channels in the in-vehicle playback system and the panoramic sound audio; When the playback mode is the rear-seat playback mode, based on a rear-seat channel mapping relationship, the in-vehicle playback system is controlled to play the panoramic sound audio, where the rear-seat channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playback system and the panoramic sound audio; The front row channel mapping relationship at least includes: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively. 2. The channel mapping method of the in-vehicle playback system according to claim 1, characterized in that mapping the speaker channels of the in-vehicle playback system facing the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic audio respectively comprises: Mapping the front door speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side channels of the panoramic sound audio; Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio; Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or corresponding side rear surround channels of the panoramic sound; Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side rear surround channels of the panoramic sound audio; Mapping the front 3D speaker channels on both sides of the in-vehicle playback system facing the first row of seats to the corresponding side front 3D channels of the panoramic sound audio; Mapping the middle 3D speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side front 3D channels and the corresponding side rear 3D channels of the panoramic sound audio; The rear 3D speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side rear 3D channels of the panoramic sound audio. 3. The channel mapping method of the in-vehicle playback system according to claim 2, characterized in that mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels and/or corresponding side channels of the panoramic sound audio specifically comprises: Mapping the rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats to the corresponding side surround channels of the panoramic sound; or The rear door speaker channels on both sides of the in-vehicle playback system facing the second row of seats are mapped to the corresponding side surround channels and the corresponding side channels of the panoramic sound audio. 4. The channel mapping method of the in-vehicle playback system according to claim 2, characterized in that mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels and/or corresponding side rear surround channels of the panoramic sound audio specifically comprises: Mapping the rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats to the corresponding side surround channels of the panoramic sound; or The rear surround speaker channels on both sides of the in-vehicle playback system facing the third row of seats are mapped to the corresponding side surround channels and the corresponding side rear surround channels of the panoramic sound audio. 5. The channel mapping method of the in-vehicle playback system according to claim 1 is characterized in that the front row channel mapping relationship also includes: mapping the panoramic center channel of the panoramic sound audio to the in-vehicle center speaker channel of the in-vehicle playback system, and mapping the panoramic subwoofer channel of the panoramic sound audio to multiple in-vehicle subwoofer speaker channels of the in-vehicle playback system. 6. The channel mapping method of the in-vehicle playback system according to claim 1, characterized in that the controlling the in-vehicle playback system to play the panoramic sound audio specifically comprises: When the playback mode is the front row playback mode, based on the front row channel mapping relationship, a mapping ratio between a speaker channel of each of the in-vehicle playback systems and a channel of the mapped panoramic sound audio is determined; if a speaker channel of the in-vehicle playback system maps a single channel of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and the channel of the mapped panoramic sound audio is a complete mapping ratio; if a speaker channel of the in-vehicle playback system maps multiple channels of the panoramic sound audio, the mapping ratio between the speaker channel of the in-vehicle playback system and each channel of the mapped panoramic sound audio is a partial mapping ratio; Each speaker channel of the vehicle-mounted playback system is controlled to adopt the mapping ratio to map the channel for playing the panoramic sound audio. 7. The channel mapping method of the in-vehicle playback system according to claim 6 is characterized in that the partial mapping ratio is determined according to the vehicle model, vehicle interior material, the arrangement position of the speaker channels of the in-vehicle playback system corresponding to the speakers and/or the size of the space inside the vehicle. 8. The channel mapping method of the in-vehicle playback system according to any one of claims 1 to 7, characterized in that the rear channel mapping relationship includes: mapping the two side channels of the panoramic sound audio to the rear door speaker channels of the in-vehicle playback system corresponding to the side facing the second row of seats, mapping the two side surround channels of the panoramic sound audio to the rear surround speaker channels of the in-vehicle playback system corresponding to the side facing the third row of seats, mapping the two side rear surround channels of the panoramic sound audio to the rear tail surround speaker channels of the in-vehicle playback system corresponding to the third row of seats, mapping the two side 3D front channels of the panoramic sound audio to the middle 3D speaker channels of the in-vehicle playback system corresponding to the side facing the second row of seats, mapping the two side 3D rear channels of the panoramic sound audio to the rear 3D speaker channels of the in-vehicle playback system corresponding to the side facing the third row of seats, mapping the panoramic center channel of the panoramic sound audio to the in-vehicle center speaker channels of the in-vehicle playback system facing the second row of seats, and mapping the panoramic subwoofer channel of the panoramic sound audio to the in-vehicle subwoofer speaker channels of the in-vehicle playback system. 9. A channel mapping device for a vehicle-mounted playback system, comprising: A playback mode acquisition module, used to acquire the playback mode of the vehicle-mounted playback system; A front row playback module, configured to control the in-vehicle playback system to play the panoramic sound audio based on a front row channel mapping relationship when the playback mode is the front row playback mode, wherein the front row channel mapping relationship is a channel mapping relationship between all speaker channels in the in-vehicle playback system and the panoramic sound audio; a rear-seat playing module, configured to control the in-vehicle playing system to play the panoramic sound audio based on a rear-seat channel mapping relationship when the playing mode is the rear-seat playing mode, wherein the rear-seat channel mapping relationship is a channel mapping relationship between some speaker channels in the in-vehicle playing system and the panoramic sound audio; The front row channel mapping relationship at least includes: mapping the speaker channels of the vehicle-mounted playback system toward the first row of seats, the second row of seats, and the third row of seats to the channels of the panoramic sound audio respectively. 10. An electronic device, comprising: at least one processor; and, a memory communicatively connected to at least one of the processors; wherein, The memory stores instructions that can be executed by at least one of the processors, and the instructions are executed by at least one of the processors so that at least one of the processors can execute the channel mapping method for the in-vehicle playback system as described in any one of claims 1 to 8. 11. A storage medium, characterized in that the storage medium stores computer instructions, and when a computer executes the computer instructions, it is used to execute all steps of the channel mapping method of a vehicle playback system according to any one of claims 1 to 8. 12. A vehicle, characterized by comprising the channel mapping device of the vehicle-mounted playback system according to claim 9, or the electronic device according to claim 10.