KR20100027713A - Apparatus and method of sound setting in home theater system - Google Patents

Abstract

The present invention relates to a sound setting apparatus and a method of a home theater system, comprising: displaying a data setting user interface (UI) for inputting a location of a user and a multi-channel speaker; Receiving a location of a user and a multi-channel speaker through the displayed data setting user interface (UI); Setting sound data values of an audio multi-channel corresponding to positions of the input user and the multi-channel speaker; And amplifying an audio signal to which the sound data value of the set audio multi-channel is applied and outputting the amplified audio signal to the speaker of the corresponding channel.

Therefore, the present invention displays the position information that can be set to receive the user and the location of the multi-channel speaker by the user on the OSD screen, by utilizing as a guideline when installing the multi-channel speaker while the user directly controls the location of the speaker, It overcomes the positional constraints of multi-channel speakers in home theater systems.

Description

Apparatus and method of sound setting in Home theater system

The present invention relates to a sound setting device and a method of a home theater system, and more particularly, to a device and method of a home theater system for setting the sound field effect and the sound balance according to the position of the user and the speaker for each speaker.

In general, a home theater system refers to a system implemented in a home so that a video signal, such as a movie input as a VCR or a TV broadcast signal, can be viewed in an effect as if seen in a theater using a multichannel speaker. In order to achieve full reproduction of multi-channel, e.g. 5.1-channel audio signals in a home theater system, the front R (right), front L (left), rear R, rear L and center Five speakers and one subwoofer are provided, and the sound effect is largely determined by the position of the listener and the position of the sound source. Therefore, the listener can hear the optimal sound only through effective sound setting through the location information.

As the trend of users who enjoy home theater is increasing, there is a limit to the optimized sound setting for the home theater. This is because the location of the speaker for optimum sound is determined by the layout of the house. For example, in case of 5.1-channel speaker, the user can feel the optimal sound effect only when the user is in the center of the radial shape, but there is a problem due to the limitation of the size and structure of the house.

The present invention has been made to solve the above problems, and an object thereof is to provide an optimized sound effect by setting an output sound according to a user and a speaker position.

Yet another object of the present invention is to individually control the speakers of each unit with the optimal sound value according to the speaker position based on the sound database in the TV (TV) sound data sent from the home theater.

Another object of the present invention is to help the user determine the actual position of the speaker by setting the speaker position via a user interface (UI).

Sound setting device of the home theater system of the present invention for achieving the above object comprises a data setting user interface (UI) for providing an OSD menu environment to receive the user and the position of the multi-channel speaker by the user; A sound database that maps and stores sound data values of an audio multi-channel corresponding to the position of the input user and the multi-channel speaker; A controller configured to set a sound data value of an audio multi-channel according to the position of the input user and the multi-channel speaker; And an output sound setting unit for amplifying an audio signal applying the sound data value of the set audio multi-channel and outputting the amplified audio signal to the speaker of the corresponding channel.

The multi-channel speaker is characterized in that the 5.1-channel speaker.

And an external signal input unit connected to a home theater and receiving a video signal and an audio signal output from the home theater.

The apparatus may further include a broadcast receiver configured to receive and demodulate a broadcast signal transmitted through a terrestrial wave, a cable, or a satellite.

The apparatus may further include an IR receiver configured to receive a control signal for performing an operation of a home theater system and a call signal of a data setting user interface (UI) providing the OSD menu environment.

The sound database may include sound data values of tonal balance, intelligibility, sound precision, sound field, presence, and purity for the multi-channel audio signal.

The sound database may include a volume level control value for sound balance with respect to a multi-channel audio signal.

The apparatus may further include a memory configured to store sound data values of the set audio multi-channel.

In addition, the present invention provides a sound setting method of a home theater system, comprising: displaying a data setting user interface (UI) for inputting a location of a user and a multi-channel speaker; Receiving a location of a user and a multi-channel speaker through the displayed data setting user interface (UI); Setting sound data values of an audio multi-channel corresponding to positions of the input user and the multi-channel speaker; And amplifying an audio signal to which the sound data value of the set audio multi-channel is applied and outputting the amplified audio signal to the speaker of the corresponding channel.

The multi-channel speaker is characterized in that the 5.1-channel speaker.

The sound data value of the audio multi-channel may include data of tonal balance, intelligibility, sound precision, sound field, presence and sound purity.

The sound data value of the audio multi channel may include a volume level control value for sound balance.

The sound data value of the set audio multi-channel may be updated and stored according to the positions of the user and the multi-channel speaker.

The present invention has the effect of providing a sound system that is satisfactory to the user by optimizing the home theater sound even in a constrained environment.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the description thereof will be omitted.

1 is a block diagram of a home theater system to which an embodiment of the present invention is applied. Hereinafter, referring to FIG. 1, the home theater system of the present invention is connected to a home theater 200 that outputs a video signal and an audio signal, and directly controls an output of external 5.1 channel speakers S1 to S6. ).

The broadcast receiving unit 105 of the video display device 100 receives and demodulates a broadcast signal transmitted through a terrestrial wave, a cable, or a satellite. The external signal input unit 106 receives a video signal and an audio signal output from the home theater 200.

The data setting UI 103a according to the present invention provides a menu environment in which the user can directly set the positions of the user and the speaker when calling from the user in cooperation with the memory 103.

The image display apparatus 100 may include a control signal for performing an operation of a home theater system through an IR receiver 101 from a user, and a data setting user interface (UI) for setting positions of the user and the speakers S1 to S6. Receive a call signal.

The control unit 102 controls to display the data setting user interface (UI) on the display unit 107 as a menu environment of the OSD data based on the call signal. The user inputs the position of the user and the position of the speakers S1 to S2 to the displayed data setting user interface UI using a function key or a remote controller.

The sound database 104b provides data values of tonal balance, intelligibility, sound precision, sound field, presence, and sound purity for each audio signal of the multi-channel according to the user and speaker position in order to provide optimal sound effects. It contains sound data mapped. At this time, the balance of the tones is sound data for setting the balance and tone of the bass, middle, high treble according to the speaker position. Clarity is sound data that is set to reproduce the outline, size, fine details, and small details of dialogue and effects sounds. Negative position is the sound data that is set so that the exact position of the sound source is played around the surround channel. The sound field is sound data that sets the position of sound, the width of the sound field, the height, the depth, and the spatial feeling of the bass. A sense of presence is sound data that is set so that sound fields are naturally connected without a sense of distance between each speaker. Sound purity is sound data that sets the same sound quality as the original of the audio signal.

The output sound setting unit 104 sets the sound data value of the audio multi-channel according to the position of the user and the speaker based on the sound database 104b. The sound data setting value basically controls the volume level for sound balance.When the user and the speaker are close to each other, the sound field of the sound decreases, thereby amplifying low frequencies to secure a rich range, and in the case of rear speakers, The closer to the rear of the user, the closer the amplified low frequency band, and the farther away the amplified high frequency band to form a three-dimensional effect.

The memory 103 stores sound setting values of audio multi-channels according to user and speaker positions input to the data setting user interface (UI).

When the sound setting value of the audio multi-channel for the 5.1 channel is completed, the controller 102 loads the stored audio channel value for each speaker from the memory 103.

The output sound setting unit 104 of the image display apparatus 100 includes a terminal to which a speaker corresponding to a multi channel may be connected, and amplifies an audio signal to which the sound setting value for each channel is applied to the controller 102 under control. Then, each wired speaker connected to the corresponding channel, woofer (S1), front R, L (Right, Left) speakers (S2, S4), center speaker (S3), rear R, L speakers (S5, S6) )

FIG. 2 is an exemplary diagram of a data setting user interface (UI) for setting sound according to the positions of the speakers S1 to S6 according to an embodiment of the present invention.

The image display apparatus 100 is connected to the home theater 200 to provide a menu environment in which the user can directly set the user and the speaker position of the 5.1 channel through the display unit 100a.

5.1 channel means 5 speakers (S2 ~ S6) and 1 subwoofer (S1). The five speakers mean five speakers, two on the front (S2, S4) on the front, two on the left (S5, S6) on the rear, and one center (S3) on the front. do. In the center speaker, a human voice mainly comes out, and one subwoofer is a dedicated speaker (S1) that is responsible for ultra-low sound.

First, the position of the center speaker S3 is basically above the TV, but if there is no space, it may be installed below the TV. The role of the center speaker is to play dialogue in movies, vocals in music, and output some music or effects.

The front speaker is installed on the front left and right (S2, S4) of the user, and is a stereo speaker that is responsible for the front sound effects, music, and movement to the left and right. The main sound comes from this speaker, so it is called the main speaker. It is heard near the apex of the isosceles triangle, which is the base of the two speakers, and sounds of different strength and time are heard in the left and right ears, so the sound source is recreated. Therefore, the orchestra of the sound source seems to be widened in the front, improving the sense of presence.

The rear speaker is a speaker located at the left and right (S5, S6) behind the user, and plays a role of forming a sense of movement or space of the effect sound. The outer suspension portion of the speaker cone refers to a technology that enables three-dimensional sound, and typical ones include Dolby Surround and DTS (Digital Theater System) surround.

Woofer speaker refers to a speaker S1 designed to reproduce a bass part of an audible frequency. Most woofers used in 5.1 channels are called subwoofers, and the subwoofer's versatility is all low-end speakers. The reason is that bass is weaker than other middle and high notes. The sound of the woofer sounds more like the sound than the sound, so it's close to the amplifier and not counted as the number of speakers, and occupies 0.1 in 5.1 channels.

The user inputs the speaker position l in the actual residential environment using the menu environment 100a in which the displayed user and 5.1 channel speaker positions can be set.

3 is a flowchart illustrating a sound setting method according to the positions of the speakers S1 to S6 in the home theater system according to the present invention.

The data setting user interface (UI) is called to provide a menu environment in which the user can directly input the location of the speaker (S301).

Based on the actual living environment, the user receives the location of the 5.1-channel speaker (S1 ~ S6) to the data setting user interface (UI) (S303).

Sound data values such as the balance, intelligibility, sound precision, sound field, presence and purity of the tones of the audio signals of the multi-channel corresponding to the user and the speaker location are mapped (S305).

The sound data value of the audio multi-channel is set according to the position of the user and the speaker (S307).

After amplifying the audio signal applying the sound setting value for each channel, each wired speaker connected to the corresponding channel, that is, woofer (S1), front R, L (Right, Left) speaker (S2, S4), and center speaker (S3) ) And output to the rear R and L speakers S5 and S6 (S309).

On the other hand, the terms used in the present invention (terminology) are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the skilled person in the relevant field, the definitions of which are used throughout the present invention. It should be based on.

The present invention is not limited to the above-described embodiments and may be variously modified and changed by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

1 is a block diagram of a home theater system according to the present invention;

2 is an exemplary diagram of a data setting user interface (UI) for setting sound according to the positions of the speakers S1 to S6 according to an embodiment of the present invention.

Figure 3 is a flow chart showing a sound setting method according to the position of the speaker (S1 ~ S6) in the home theater system according to the present invention.

* Description of the symbols for the main parts of the drawings *

100. Video display device 200. Home theater (HTS)

101. IR receiver 102. Control unit

103. Memory 104. Output Sound Settings

105. Broadcast receiving unit 106. External signal input unit

Claims (13)

Displaying a data setting user interface (UI) for inputting a location of a user and a multi-channel speaker; Receiving a location of a user and a multi-channel speaker through the displayed data setting user interface (UI); Setting sound data values of an audio multi-channel corresponding to positions of the input user and the multi-channel speaker; And And amplifying an audio signal to which the sound data values of the set audio multi-channel are applied and outputting the amplified audio signals to the speakers of the corresponding channel. The method of claim 1, The multi-channel speaker is a sound setting method of the home theater system, characterized in that the 5.1-channel speaker. The method of claim 1, The sound data value of the audio multi-channel includes sound balance, intelligibility, precision of sound, sound field, presence and sound purity data of the home theater system. The method of claim 1, The sound data value of the audio multi-channel includes a volume level control value for sound balance. The method of claim 1, The sound setting method of the home theater system, characterized in that for updating the sound data value of the set audio multi-channel according to the location of the user and the multi-channel speaker. A data setting user interface (UI) for providing an OSD menu environment to receive inputs of a user and a multi-channel speaker by the user; A sound database that maps and stores sound data values of an audio multi-channel corresponding to the position of the user and the multi-channel speaker; A controller configured to set a sound data value of an audio multi-channel according to the position of the input user and the multi-channel speaker; And And an output sound setting unit for amplifying an audio signal to which the sound data value of the set audio multi-channel is applied and outputting the amplified audio signal to a speaker of the corresponding channel. The method of claim 6, The multi-channel speaker is a sound setting device of a home theater system, characterized in that the 5.1-channel speaker. The method of claim 6, And an external signal input unit connected to a home theater and receiving a video signal and an audio signal output from the home theater. The method of claim 6, And a broadcast receiving unit for receiving and demodulating a broadcast signal transmitted through a terrestrial wave, a cable, or a satellite. The method of claim 6, And an IR receiver configured to receive a control signal for performing an operation of a home theater system and a call signal of a data setting user interface (UI) providing the OSD menu environment. The method of claim 6, And the sound database includes sound data values of tonal balance, intelligibility, sound precision, sound field, presence and purity for multi-channel audio signals. The method of claim 6, And the sound database includes a volume level control value for sound balance with respect to a multi-channel audio signal. The method of claim 6, And a memory configured to store sound data values of the set audio multi-channel.

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