CN106448672B - A sound system and control method - Google Patents

Abstract

The invention discloses an audio system and a control method, comprising an ordinary speaker unit, a bass speaker unit, a microphone unit and a control unit. The microphone unit receives a user's voice signal, and the control unit controls the ordinary speaker unit and the bass speaker unit to work according to the voice signal. It is characterized in that the microphone unit is arranged in the woofer unit, and the present invention solves the problem in the prior art that when the microphone unit is arranged in an ordinary speaker unit, the size and frequency of the sound played by the ordinary speaker affect the microphone reception for speech phase. The conflict leads to the problem of not being able to correctly identify the used voice, which ensures the correct recognition of the user's voice, and realizes that the above-mentioned sound system can be controlled by the user's voice.

Description

A sound system and control method

technical field

The present invention relates to the field of sound systems, in particular to a sound system and a control method.

Background technique

Some of the current audio control systems have added a microphone device. The microphone combined with the current voice recognition technology can realize the voice control audio control system, especially the column-type audio equipment with LCD flat-screen TVs, such as Soundbar speakers, when used with flat-screen TVs In addition to forming an integrated visual effect, it can also obtain good sound quality. When adding a microphone device to its speaker, the user can easily control the common functions of the speaker through voice. Since the size of the Soundbar is much smaller than that of traditional home theater speakers, when the microphone device is installed in it, it will be very close to the surrounding speakers. When the Soundbar is playing audio, the sound pressure of the sound will often cover Human voice, which leads to the situation that the voice cannot be recognized and the control fails when the user performs voice control.

The above content is only used to assist the understanding of the technical solutions of the present invention, and does not mean that the above content is the prior art.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a sound system and a control method, the purpose is to solve the problem that when the microphone unit is arranged in a common speaker unit in the prior art, because the sound played by the microphone unit interferes with the microphone unit receiving the user's voice signal, thereby The microphone unit cannot accurately recognize the user's voice, resulting in the failure of voice control.

In order to achieve the above purpose, the present invention provides a sound system, the sound system includes a bass speaker unit, a common speaker unit, a control unit and a microphone unit arranged in the bass speaker unit, the microphone unit receives the user's voice signal and The voice control command is recognized, and the control unit controls the woofer unit and the ordinary speaker unit to work.

Preferably, the microphone unit recognizes a preset voice wake-up command from the received user's voice signal, enters a voice control state after recognizing the preset voice wake-up command, and recognizes the voice control command according to the received user's voice signal.

Preferably, the microphone unit obtains the volume of the common speaker unit, and when the microphone unit recognizes a part of the preset voice wake-up command, and the microphone unit determines that the volume exceeds the preset value, send or give The prompt information that the volume exceeds the preset value, or a control command is sent to the ordinary speaker unit, so that the volume of the ordinary speaker unit is reduced below the preset value.

Preferably, the microphone unit acquires the volume of the preset audio signal played by the ordinary speaker unit, and determines the distance between the ordinary speaker unit and the microphone unit according to the volume, and when the distance is less than a preset threshold , send or give prompt information that the distance exceeds the preset value.

Preferably, when the distance between the ordinary speaker unit and the woofer unit is less than a preset threshold, the ordinary speaker unit is controlled so that the sound level of the audio signal received by the microphone unit from the ordinary speaker unit does not exceed the sound of the user's voice signal received. 20db in size.

Preferably, the control unit is arranged in a bass speaker unit or a common speaker unit.

Preferably, the common speaker unit is a Soundbar speaker unit, and the Soundbar speaker unit and the bass speaker unit communicate wirelessly.

In order to achieve the above object, the present invention also provides a control method for an audio system, based on the above audio system, the control method includes the following steps:

The microphone unit receives the user's voice signal and recognizes the preset voice wake-up command;

The microphone unit enters the voice control state after recognizing the preset voice wake-up command;

The microphone unit recognizes the voice control instruction according to the voice signal received by the user;

The control unit controls the ordinary speaker unit and the bass speaker unit to work according to the voice control instruction.

Preferably, the microphone unit further includes:

The microphone unit also obtains the volume of the ordinary speaker unit, when the microphone unit recognizes a part of the preset voice wake-up command, and the microphone unit determines that when the volume exceeds the preset value, the woofer unit sends Or give a prompt message that the volume exceeds the preset value, or send a control command to reduce the volume of the ordinary speaker unit below the preset value.

Preferably, the control method further includes:

The microphone unit also acquires the volume of the preset audio signal played by the ordinary speaker unit, and determines the distance between the ordinary speaker unit and the microphone unit according to the volume, and when the distance is less than the preset threshold, the The woofer unit sends or gives prompt information that the distance exceeds a preset value.

By arranging the microphone unit in the woofer unit, the audio system of the present invention solves the problem in the prior art that when the microphone unit is arranged in the ordinary speaker unit, the size of the sound played by the ordinary speaker and the frequency of the sound affect the microphone reception for the voice phase. The conflict leads to the problem of not being able to correctly recognize the used voice, which ensures the correct recognition of the user's voice, and realizes that the above-mentioned audio control system can be controlled by the user's voice.

Description of drawings

1 is a schematic diagram of the composition and structure of an audio control system according to an embodiment of the present invention;

2 is a schematic diagram of a sound box of a woofer unit of an audio system according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a speaker comprising a Soundbar in the prior art;

4 is a schematic diagram of a speaker including a Soundbar according to an embodiment of the present invention;

5 is a schematic structural diagram of another sound control system according to an embodiment of the present invention;

FIG. 6 is a schematic flowchart of a control method of an audio system according to an embodiment of the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The following describes the sound system and the control method according to the embodiments of the present invention with reference to the accompanying drawings.

First, the sound system of the present invention will be described. FIG. 1 is a schematic diagram of the composition and structure of the sound system according to the first embodiment of the present invention. As shown in FIG. 1 , the microphone-based audio system according to the embodiment of the present invention includes: a common speaker unit 1, a woofer unit 2, a microphone unit 3 and a control unit 4, wherein the common speaker unit is used in the audio system to play the left sound channel, right channel, center and surround channels, etc. One or more of the speakers, in particular, the ordinary speaker unit can be the currently more popular Soundbar speakers with flat-panel TVs, which will play the above-mentioned multiple channels. The speaker is integrated in a box, and the woofer unit plays the low-frequency channel, and the general output sound frequency is below 150Hz. In the audio system of the present invention, the microphone unit is used to receive the user's voice signal, and recognize the voice control command, and the control unit controls the audio to control the work of the ordinary speaker unit and the bass speaker unit according to the user's voice control command. The audio control system of the present invention The middle microphone unit is arranged in the bass unit, and the bass speaker unit and the ordinary speaker unit can communicate in a wireless manner, that is, the control unit sends voice control commands through wireless communication. The sound system controls the work of the ordinary speaker unit.

FIG. 2 is a schematic diagram of the woofer unit of the audio system of the present invention. As shown in FIG. 2 , the woofer unit 2 includes: a cabinet, a woofer, and a microphone unit 3 arranged in the sound box. The woofer unit plays low-frequency channels, and generally outputs a sound frequency below 150 Hz. The microphone unit 3 is used to receive the user's voice signal and recognize the voice control command, which is used to control the operation of the woofer unit.

When the user uses the stereo, the frequency range of the sound played by the ordinary speaker unit is in the range of 20-20KHz, which completely covers the frequency range of the human voice. If the microphone unit is set in the ordinary speaker unit, the ordinary speaker unit plays the sound. It will affect the microphone unit to receive the voice signal. For example, the ordinary speaker unit is a Soundbar speaker, and the microphone unit is set in the middle of the speaker. As shown in Figure 3, the existing schematic diagram of the soundbar speaker, the microphone unit is located in the middle position. Since the Soundbar speaker contains multiple speakers to play different channels, and the distance between the speakers is very close, for example, the distance between the left and right channel speakers located on both sides of the speaker is only 4.5cm, and the distance between the speakers located in the middle of the speaker is only 4.5cm. The distance between the channel speakers is closer, as shown in Figure 3, the value of L1 is L1<4.5cm. When the speaker is playing sound, in addition to the frequency range of its sound will cover the frequency range of the microphone unit for voice reception, and its speaker The sound pressure of the playback will also exceed the sound pressure of the user's voice at the position of the microphone unit. For example, the sound pressure of the speaker played at the position of the microphone unit is measured to be more than 100db, while the sound pressure for voice is only about 80db, which completely exceeds the sound pressure of the voice. the sound pressure, so that the microphone unit cannot correctly recognize the user's voice.

The present invention can solve the above problems by arranging the microphone unit 3 in the woofer unit. As shown in FIG. 4, a schematic diagram of the soundbar speaker is included. Since the woofer unit is placed at a certain distance from the ordinary speaker unit, the There will be a certain distance between the microphone unit and the speaker of the ordinary speaker unit, and the distance is much larger than the distance between the microphone unit and the speaker in the ordinary speaker unit. For example, the distance L between the woofer unit and the Soundbar speaker in the figure is generally 1 -10m, which is much larger than the L1 distance in Figure 3, so it can be guaranteed that when the microphone unit is in the position of the ordinary speaker unit, the boosted and attenuated value of the ordinary speaker unit will not affect the reception of the user's voice. The output sound frequency of the woofer unit is below 150 Hz. As long as the recognition frequency of the microphone unit when receiving the user's voice is above this, it can be ensured that the microphone unit can correctly recognize the user's voice. The microphone unit recognizes the voice control command based on the voice signal received from the user, and the control command controls the operation of the woofer unit, or controls the work of the ordinary speaker unit at the same time. For example, the user can control the volume increase or decrease through voice commands, Control the audio system to play sound, pause, etc.

In the audio system of this embodiment, by arranging the microphone unit in the audio system in the woofer unit, it solves the problem of the size of the sound played by the ordinary speaker and the difference of the sound when the microphone unit is arranged in the ordinary speaker unit in the prior art. The frequency affects the microphone received for the voice and the conflict causes the problem that the voice cannot be correctly recognized for the voice, which ensures the correct recognition of the user's voice, and realizes that the above-mentioned sound system can be controlled by the user's voice.

Further, a second embodiment of the audio system of the present invention is proposed. Based on the first embodiment of the audio system of the present invention, in this embodiment, the microphone unit in the woofer unit of the audio system recognizes the prediction from the voice signal received by the user. Set the voice wake-up command, and enter the voice control state after recognizing the preset voice wake-up command, and recognize the voice control command according to the received user's voice signal.

When the microphone unit receives the user's voice information to control the operation of the woofer unit, in order to ensure that the user's voice command can be recognized correctly and effectively, before receiving the user's voice command, it needs to recognize the preset voice wake-up command. The voice control state of receiving the user's voice command is entered after the voice wake-up command. The preset wake-up command can be simple voice information. For example, the wake-up voice information can be set as "speaker". Before the user needs to control the woofer unit, First repeat "speaker" several times, the microphone unit is always in the voice receiving state. After recognizing the voice information of "speaker", it enters the voice control state. At this time, in order to facilitate the user to recognize that voice control is available, the audio control system can Give certain prompt information, such as flashing or lighting the indicator light to remind the user that the audio system has entered the receiving state of voice control, the user can then say specific voice control commands, such as lowering or raising the ordinary speaker unit Or the voice control command of the volume of the woofer unit. After the microphone unit receives the user's voice control command, it recognizes the voice control command and sends it to the control unit, and the control unit controls the operation of the ordinary speaker unit or the woofer unit according to the voice control command.

Further, a third embodiment of the audio system of the present invention is proposed. Based on the second embodiment of the audio system of the present invention, in this embodiment, the microphone unit of the audio system obtains the volume of the ordinary speaker unit. Set a part of the voice wake-up command, and the microphone unit determines that when the volume exceeds the preset value, it sends or gives a prompt message that the volume exceeds the preset value, or sends a control command to the ordinary speaker unit, so that the ordinary speaker unit the volume level is reduced below the preset value.

Since the woofer unit of the audio system is working, the microphone unit is always in the state of receiving voice information. When the user wants to perform voice control and first speak the preset voice wake-up command, if the ordinary speaker unit in the audio system is playing audio, due to its The sound played is relatively loud, which affects the recognition of the microphone preset voice wake-up command. At this time, the microphone unit can obtain the volume of the ordinary speaker unit. As shown in Figure 4, including the Soundbar speaker, the microphone unit is set in the woofer unit. The microphone unit in the speaker unit can establish a connection with the ordinary speaker unit through wireless communication, and the microphone unit can communicate with the ordinary speaker unit through a preset communication protocol to obtain the current volume of the audio played by the ordinary speaker unit. When the microphone unit recognizes the voice wake-up command preset by the user, if only a part of it is recognized, such as the specific voice wake-up command is the "speaker" mentioned in the second embodiment above, only the "sound" or "sound" is recognized. At this time, the microphone unit determines whether the volume played by the current ordinary speaker unit exceeds the preset value, and when it exceeds the preset value, it is determined that the volume played by the ordinary speaker unit is too large and affects the recognition of the voice wake-up command. The microphone unit gives prompt information to the woofer unit, or sends prompt information to the ordinary speaker unit to remind the user that the current sound played by the ordinary speaker unit is too loud. Controls the sound played by the ordinary speaker unit to be reduced to a value lower than the preset value. In this way, when the microphone unit recognizes only a part of the user's voice wake-up command, by prompting the user or automatically reducing the volume, after the volume of the ordinary speaker unit is reduced below the preset threshold, it can avoid the microphone unit being recognized by the loud sound. The interference of the user's voice wake-up command further strengthens the microphone unit to accurately recognize the user's voice command.

Further, a fourth embodiment of the audio system of the present invention is proposed. Based on the above-mentioned first embodiment of the audio system of the present invention, in this embodiment, the microphone unit also obtains the volume of the ordinary speaker unit, and judges the volume according to the volume. The distance between the ordinary speaker unit and the microphone unit, when the distance is less than the preset threshold, the audio system will give prompt information.

In order to further ensure that the microphone unit can accurately identify the user's voice information, the woofer unit of the audio system can enter a preset working mode. In this preset working mode, the microphone unit obtains the preset audio that the ordinary speaker unit is currently playing. The volume of the signal, according to the volume to determine the distance between it and the microphone unit, because there is a certain relationship between the sound and the distance, through the previous experiments, the microphone unit can be established to obtain the volume of the audio signal when the ordinary speaker unit is playing the preset audio signal and both. The relationship between the distance, so the distance value of the two can be obtained according to this relationship. For the convenience of processing, the distance value can be a range value. When the microphone unit judges that the distance value is less than the preset value, the audio system will give a prompt message to remind the user. At present, the distance between the ordinary speaker unit speaker and the woofer unit speaker where the microphone is located is too close, and the placement of the two should be adjusted so that the distance between the two exceeds the preset value. It should be noted that this preset working mode can be that the audio system automatically enters when the user uses the audio for the first time. For example, when the user turns on the audio for the first time, the audio system automatically enters this preset working mode, or can be entered through a special operation. , such as the installation and after-sales personnel enter through a special operation, or the user can also enter this preset working mode through this special operation. In order to ensure that the voice of the user received by the microphone unit is not affected by the sound of the ordinary speaker unit, when the distance between the ordinary speaker unit and the woofer unit is less than the preset value, the sound level of the audio signal received by the microphone unit of the ordinary speaker unit cannot exceed 20db of the sound level of the received user's voice signal.

In this embodiment, the woofer unit enters a preset working mode, the ordinary speaker unit plays a preset audio signal, and the microphone unit obtains its volume and determines that the distance is less than the preset threshold, and the woofer unit provides prompt information or sends the distance. The prompt information exceeding the preset value, and finally the user adjusts the distance between the bass unit speaker box where the microphone unit is located and the ordinary speaker unit speaker box based on the reminder information, which can further strengthen the microphone unit to accurately recognize the user's voice commands.

The control unit of the audio system of the present invention can be arranged in a bass speaker unit or a common speaker unit. When it is arranged in the bass speaker unit, as shown in FIG. 1 , its microphone unit is used to receive the user's voice information and recognize the voice control command, the microphone unit sends the recognized voice control command to the control unit, the control unit controls the woofer unit to work according to the voice control command, and sends the voice control command to the ordinary speaker unit wirelessly to control the ordinary speaker unit to work; when setting In an ordinary speaker unit, as shown in Figure 5, the microphone unit sends the recognized voice control command to the control unit wirelessly, and the control unit then controls the ordinary speaker unit to work according to the voice control command, and sends it wirelessly. Voice control commands control the operation of the woofer unit.

The invention also provides a control method of the audio system.

The control method is based on the audio system in the above-mentioned embodiment, and FIG. 6 is a flowchart of the control method of the audio system. As shown in FIG. 6 , the control method of the audio system according to the embodiment of the present invention includes the following steps:

Step S10, the microphone unit receives the user's voice signal and recognizes the preset voice wake-up command;

Step S20, the microphone unit enters the voice control state after recognizing the preset voice wake-up command;

Step S30, the microphone unit recognizes the voice control instruction according to the voice signal received from the user;

Step S40, the control unit controls the ordinary speaker unit and the bass speaker unit to work according to the voice control instruction.

The audio system according to the embodiment of the present invention includes a microphone unit, a control unit, a bass speaker unit and a common speaker unit, and the specific functions of each unit are the same as those of the above-mentioned embodiment of the audio system.

In the audio system of the present invention, the microphone unit is used to receive the user's voice signal. When the microphone unit receives the user's voice information to control the operation of the woofer unit, in order to ensure that the user's voice command can be recognized correctly and effectively, the microphone unit receives the user's voice signal. Before the voice command, the preset voice wake-up command needs to be recognized. After the voice wake-up command is recognized, it enters the voice control state of receiving the user's voice command. The preset wake-up command can be simple voice information. For example, you can set the wake-up command. The voice information is "speaker". Before the user needs to control the woofer unit, he repeats "speaker" several times. The microphone unit is always in the voice receiving state. After recognizing the voice information of "speaker", it enters the voice control state. At this time, in order to facilitate the user to recognize that voice control is available, the audio system can give certain prompt information, such as the flashing or lighting of the indicator light to remind the user that the audio system has entered the receiving state of voice control, the user can then say A specific voice control command, such as a voice control command to lower or increase the volume of an ordinary speaker unit or a woofer unit. After the microphone unit receives the user's voice control command, it recognizes the voice control command and sends it to the control unit. Control commands to control the work of ordinary speaker units or woofer units.

Further, a second embodiment of the control method of the audio system is proposed, based on the above-mentioned first embodiment of the control method of the audio system of the present invention, in this embodiment, the microphone unit recognizes the preset voice wake-up from the voice signal received by the user The instruction also includes: the microphone unit also obtains the volume of the common speaker unit, when the microphone unit recognizes a part of the preset voice wake-up instruction, and the microphone unit determines that when the volume exceeds the preset value, the bass speaker unit sends or gives The prompt information that the volume exceeds the preset value, or send a control command to reduce the volume of the ordinary speaker unit to below the preset value.

Since the woofer unit of the stereo is working, the microphone unit is always in the state of receiving voice information. When the user wants to perform voice control and first speak the preset voice wake-up command, if the ordinary loudspeaker unit in the stereo is playing audio, because of its playback The sound is relatively loud, which affects the recognition of the microphone preset voice wake-up command. At this time, the microphone unit can obtain the volume of the ordinary speaker unit. As shown in Figure 4, including the Soundbar speaker, the microphone unit is set in the woofer unit, and the woofer The microphone unit in the unit can establish a connection with the ordinary speaker unit through wireless communication, and the microphone unit can communicate with the ordinary speaker unit through a preset communication protocol to obtain the current volume of the audio played by the ordinary speaker unit. When the microphone unit recognizes the voice wake-up command preset by the user, if only a part of it is recognized, such as the specific voice wake-up command is the "speaker" mentioned in the second embodiment above, only the "sound" or "sound" is recognized. At this time, the microphone unit determines whether the volume played by the current ordinary speaker unit exceeds the preset value, and when it exceeds the preset value, it is determined that the volume played by the ordinary speaker unit is too large and affects the recognition of the voice wake-up command. The microphone unit gives prompt information to the woofer unit, or sends prompt information to the ordinary speaker unit to remind the user that the current sound played by the ordinary speaker unit is too loud. Controls the sound played by the ordinary speaker unit to be reduced to a value lower than the preset value. In this way, when the microphone unit recognizes only a part of the user's voice wake-up command, by prompting the user or automatically reducing the volume, after the volume of the ordinary speaker unit is reduced below the preset threshold, it can avoid the microphone unit being recognized by the loud sound. The interference of the user's voice wake-up command further strengthens the microphone unit to accurately recognize the user's voice command.

Further, the third embodiment of the control method of the audio system is proposed. Based on the above-mentioned first embodiment of the control method of the audio system of the present invention, in this embodiment, the control method further includes: the microphone unit also obtains a common speaker unit. and the distance between the ordinary speaker unit and the microphone unit is judged according to the volume, and when the distance is less than the preset threshold, the audio system will give a prompt message.

In order to further ensure that the microphone unit can accurately identify the user's voice information, the woofer unit of the audio system can enter a preset working mode. In this preset working mode, the microphone unit obtains the preset audio that the ordinary speaker unit is currently playing. The volume of the signal, according to the volume to determine the distance between it and the microphone unit, because there is a certain relationship between the sound and the distance, through the previous experiments, the microphone unit can be established to obtain the volume of the audio signal when the ordinary speaker unit is playing the preset audio signal and both. The relationship between the distance, so the distance value of the two can be obtained according to this relationship. For the convenience of processing, the distance value can be a range value. When the microphone unit judges that the distance value is less than the preset value, the audio system will give a prompt message to remind the user. At present, the distance between the ordinary speaker unit speaker and the woofer unit speaker where the microphone is located is too close, and the placement of the two should be adjusted so that the distance between the two exceeds the preset value. It should be noted that this preset working mode can be that the audio system automatically enters when the user uses the audio for the first time. For example, when the user turns on the audio for the first time, the audio system automatically enters this preset working mode, or can be entered through a special operation. , such as the installation and after-sales personnel enter through a special operation, or the user can also enter this preset working mode through this special operation. In order to ensure that the voice of the user received by the microphone unit is not affected by the sound of the ordinary speaker unit, when the distance between the ordinary speaker unit and the woofer unit is less than the preset value, the sound level of the audio signal received by the microphone unit of the ordinary speaker unit cannot exceed 20db of the sound level of the received user's voice signal.

In this embodiment, the woofer unit enters a preset working mode, the ordinary speaker unit plays a preset audio signal, and the microphone unit obtains its volume and determines that the distance is less than the preset threshold, and the woofer unit provides prompt information or sends the distance. The prompt information exceeding the preset value, and finally the user adjusts the distance between the bass unit speaker box where the microphone unit is located and the ordinary speaker unit speaker box based on the reminder information, which can further strengthen the microphone unit to accurately recognize the user's voice commands.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields , are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. a sound system, it is characterised in that the sound system comprises a bass speaker unit, a common speaker unit, a control unit and a microphone unit arranged in the bass speaker unit, the microphone unit receives the user's voice signal and recognizes the voice control instruction, the control unit controls the woofer unit and the ordinary speaker unit to work, wherein the microphone unit obtains the volume of the ordinary speaker unit, when the microphone unit recognizes the preset voice wake-up instruction. and the microphone unit judges that when the volume exceeds the preset value, it sends or gives a prompt message that the volume exceeds the preset value, or sends a control command to the ordinary speaker unit, so that the ordinary speaker unit the volume level is reduced below the preset value. 2. The sound system according to claim 1, wherein the microphone unit recognizes a preset voice wake-up command from the voice signal received by the user, and enters a voice control state after recognizing the preset voice wake-up command , and recognize the voice control command according to the voice signal received from the user. 3. The audio system according to claim 1, wherein the microphone unit acquires the volume of a preset audio signal played by the ordinary speaker unit, and judges the ordinary speaker unit and the microphone according to the volume. The distance of the unit, when the distance is less than the preset threshold, send or give prompt information that the distance exceeds the preset value. 4. The audio system according to claim 3, wherein when the distance between the common speaker unit and the woofer unit is less than a preset threshold, the common speaker unit is controlled so that the microphone unit receives the common speaker unit The sound level of the audio signal shall not exceed 20db of the sound level of the received user's voice signal. 5 . The audio system according to claim 1 , wherein the control unit is arranged in a bass speaker unit or a common speaker unit. 6 . 6 . The audio system according to claim 1 , wherein the common speaker unit is a Soundbar speaker unit, and the Soundbar speaker unit and the bass speaker unit communicate wirelessly. 7 . 7. A control method for an audio system, characterized in that, based on the audio system according to any one of claims 1 to 6, the control method comprises the following steps: The microphone unit receives the user's voice signal and recognizes the preset voice wake-up command; The microphone unit enters the voice control state after recognizing the preset voice wake-up command; The microphone unit recognizes the voice control instruction according to the voice signal received by the user; The control unit controls the ordinary speaker unit and the bass speaker unit to work according to the voice control instruction; The microphone unit also obtains the volume of the ordinary speaker unit, when the microphone unit recognizes a part of the preset voice wake-up command, and the microphone unit determines that when the volume exceeds the preset value, the woofer unit sends Or give a prompt message that the volume exceeds the preset value, or send a control command to reduce the volume of the ordinary speaker unit below the preset value. 8. The control method of an audio system according to claim 7, wherein the control method further comprises: The microphone unit also acquires the volume of the preset audio signal played by the ordinary speaker unit, and determines the distance between the ordinary speaker unit and the microphone unit according to the volume, and when the distance is less than the preset threshold, the The woofer unit sends or gives prompt information that the distance exceeds a preset value.

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