WO2013067712A1 - Method for establishing 5.1 sound track on headset - Google Patents
Method for establishing 5.1 sound track on headset Download PDFInfo
- Publication number
- WO2013067712A1 WO2013067712A1 PCT/CN2011/082121 CN2011082121W WO2013067712A1 WO 2013067712 A1 WO2013067712 A1 WO 2013067712A1 CN 2011082121 W CN2011082121 W CN 2011082121W WO 2013067712 A1 WO2013067712 A1 WO 2013067712A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- virtual
- audio
- channel
- establishing
- audio signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
- H04S3/004—For headphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems
Definitions
- the present invention relates to a sound processing method, and more specifically to a method of establishing a 5.1 channel on a headphone.
- Stereo music is played by headphones.
- the audio signal is played separately through two channels. In this process, the sound is only restored to the left and right ears.
- the audio can't feel the stereoscopic effect by putting the speaker on the ears. This is because the processed sound has no width and no sense of direction.
- Patent Application 200710175652.9 designs a three-dimensional ring sound effect method and apparatus for a headphone sound system that can expand a two-channel audio signal into a multi-channel three-dimensional ring sound signal.
- the application establishes a new model based on the subjective perception principle of human hearing. Therefore, the invention establishes a virtual sound source and achieves a three-dimensional ringing effect by sound delay, and cannot accurately solve the stereoscopic effect of the sound source, nor can it establish a 5.1 channel surround effect.
- an object of the present invention is to provide a method for establishing a 5.1 channel on a headphone, which uses the virtual sound field to establish a 5.1 channel, effectively solving the stereo of the two-channel earphone. Sound problem.
- Another object of the present invention is to provide a method for establishing a 5.1 channel on a headphone, which is simple and inexpensive, and can be widely applied to existing two-channel headphones.
- An implementation method for establishing a 5.1 channel on a headset characterized in that the method comprises the following steps:
- A audio input
- the audio plane segmentation is to divide the audio of the left and right channels into 6 audio signals by static gain, wherein the virtual left channel, the virtual right channel, and the virtual central audio signal are subjected to delay processing and sound filtering. And then output;
- the moved audio signal and the virtual bass audio signal are filtered before being combined to remove noise and interference generated during the virtual processing and 5.1 channel model processing.
- step C the 6 new audio signals are first shifted, and then filtered, In addition to the noise, then smoothing is performed to eliminate the jitter noise, and then the delay is made. After the delay, the process proceeds to step D for synthesis.
- the invention divides the audio signal of the two-channel earphone into six audio signals, the virtual multi-channel sound field, and then performs the composite output, so that the audio signal of the earphone has the function of 5.1 channel, and the stereo output effect is achieved, which can satisfy people. Audiovisual needs.
- the invention is simple to implement, convenient to control, low in cost, and can be widely applied to existing earphones.
- 1 is a software flow diagram for implementing the present invention.
- FIG. 2 is a schematic structural diagram of implementing a virtual module of the present invention.
- Figure 3 is a schematic diagram of the processing of the head model of the present invention.
- FIG. 4 is a schematic structural view of a head model module and a synthesis module embodying the present invention. detailed description
- the main flow constituting the present invention is shown in Fig. 1.
- the audio input of the left channel and the right channel is subjected to virtual sound field processing for the input audio, and then 5.1 channel model processing is performed, and the processed audio is synthesized.
- the left channel audio signal and the right channel audio signal are input to the audio input module, and the audio input module inputs the above two audio signals Into the virtual sound field module, combined with the left and right channel audio of the virtual sound field module, as shown in FIG. 2, to generate 6 channels of audio.
- the generated 6 channels of audio include left channel audio, right channel audio R, virtual left channel audio SL, virtual left channel audio SR, virtual center audio C, and bass audio SUB.
- the plane division of the audio is to divide the audio of the left and right channels into 6 audio signals by static gain, wherein the virtual left channel, the virtual right channel, and the virtual central audio signal are subjected to delay processing and sound filtering, and then The output is performed and 5.1 channel model processing is performed.
- the 5.1-channel model processing uses a model function to move five of the audio signals (L, R, C, SL, SR) according to a certain angle and phase, and move the sounds to a specified spatial position for recombination.
- the specific displacement method is: Left channel audio L moves at -30° angle, 0 ° phase, right channel audio R moves at 0° angle, 0 ° phase, virtual left channel audio SL moves at 110° angle and 0° phase, virtual left channel audio SR moves at -110° angle, 0° phase, virtual center audio C moves at 30° angle, 0° phase; Bass audio SUB signal Do not move.
Abstract
Disclosed is an implementation method for establishing a 5.1 sound track on a dual-track headset through a virtual sound field. It is characterized in that the method includes steps of audio inputting, virtual sound field processing, and 5.1 sound track model processing and combination. An audio signal of a headset is split into 6 paths of audio signals, a multi-sound track sound field is virtualized, and then they are combined and outputted, so that the audio signal of the headset has the function of a 5.1 sound track, which can realize the effects of stereo output and can meet the visual and audio demands of customers.
Description
一种在耳机上建立 5.1声道的方法 技术领域 Method for establishing 5.1 channel on earphone
本发明涉及声音处理方法， 准确地说是在耳机上建立 5.1声道的 方法。 技术领域 The present invention relates to a sound processing method, and more specifically to a method of establishing a 5.1 channel on a headphone. Technical field
耳机播放立体声音乐是通过双声道的方式分开进行音频信号播 放， 这样的处理过程， 声音其实就只还原在左右耳朵边。 音频再通过 喇叭放到双耳感觉不出立体的感觉，这是因为处理后的声音没有宽度 也没有方向感。 Stereo music is played by headphones. The audio signal is played separately through two channels. In this process, the sound is only restored to the left and right ears. The audio can't feel the stereoscopic effect by putting the speaker on the ears. This is because the processed sound has no width and no sense of direction.
因此， 专利申请 200710175652.9 设计了一种针对耳机音响系统 的三维环响音效方法和设备，能够使双声道的音频信号扩展为多声道 三维环响的音频信号。该申请是依据人体听觉的主观感知原理建立了 一个新模型。 因此， 该发明是建立虚拟声源并通过声音延迟来达到三 维环响的效果， 并不能准确地解决声源立体感的效果， 也不能建立 5.1声道的环绕效果。 发明内容 Therefore, Patent Application 200710175652.9 designs a three-dimensional ring sound effect method and apparatus for a headphone sound system that can expand a two-channel audio signal into a multi-channel three-dimensional ring sound signal. The application establishes a new model based on the subjective perception principle of human hearing. Therefore, the invention establishes a virtual sound source and achieves a three-dimensional ringing effect by sound delay, and cannot accurately solve the stereoscopic effect of the sound source, nor can it establish a 5.1 channel surround effect. Summary of the invention
基于此，本发明的目的是提供一种在耳机上建立 5.1声道的方法， 该方法利用虚拟声场建立 5.1声道， 有效地解决了双声道耳机的立体
声问题。 Based on this, an object of the present invention is to provide a method for establishing a 5.1 channel on a headphone, which uses the virtual sound field to establish a 5.1 channel, effectively solving the stereo of the two-channel earphone. Sound problem.
本发明的另一个目的在于提供一种在耳机上建立 5.1 声道的方 法，该方法实现简便、成本低廉，可广泛应用于现有的双声道耳机中。 Another object of the present invention is to provide a method for establishing a 5.1 channel on a headphone, which is simple and inexpensive, and can be widely applied to existing two-channel headphones.
为了达到上述目的， 本发明是这样实现的： In order to achieve the above object, the present invention is achieved in this way:
一种在耳机上建立 5.1声道的实现方法， 其特征在于该方法包括 如下步骤： An implementation method for establishing a 5.1 channel on a headset, characterized in that the method comprises the following steps:
A、 音频输入； A, audio input;
B、 虚拟声场处理， 将输入的音频进行平面分割， 生成 6路新音 频 （包括左声道、 右声道、 虚拟左声道、 虚拟右声道、 虚拟中置、 虚 拟低音）； B. Virtual sound field processing, plane dividing the input audio to generate 6 new audio frequencies (including left channel, right channel, virtual left channel, virtual right channel, virtual center, virtual bass);
所述的音频平面分割，是将左右声道的音频进行静态增益分割成 6路音频信号， 其中， 虚拟左声道、 虚拟右声道、 虚拟中置的音频信 号又经过延时处理和音效过滤， 然后进行输出； The audio plane segmentation is to divide the audio of the left and right channels into 6 audio signals by static gain, wherein the virtual left channel, the virtual right channel, and the virtual central audio signal are subjected to delay processing and sound filtering. And then output;
C、 5.1声道模型处理， 将 6路新音频中的左声道、 右声道、虚拟 左声道、 虚拟右声道、 虚拟中置进行位移， 位移是按照一定的角度和 相位进行移动； C, 5.1 channel model processing, the left channel, the right channel, the virtual left channel, the virtual right channel, the virtual center in the 6 channels of new audio are displaced, and the displacement is moved according to a certain angle and phase;
D、 合成， 再将移动后的音频信号和虚拟低音的音频信号进行合 成， 然后进行输出。 D. Combine, and then combine the moved audio signal with the virtual bass audio signal, and then output.
所述的移动后的音频信号和虚拟低音的音频信号，在合成之前先 进行过滤处理， 以去掉和虚拟处理和 5.1声道模型处理过程中产生的 噪音和干扰。 The moved audio signal and the virtual bass audio signal are filtered before being combined to remove noise and interference generated during the virtual processing and 5.1 channel model processing.
所述步骤 C中， 6路新音频信号先经过位移后， 再进行过滤， 消
除噪音， 然后再经过进行平滑处理， 消除抖动噪音， 然后进行延时， 延时后再进入步骤 D进行合成。 In the step C, the 6 new audio signals are first shifted, and then filtered, In addition to the noise, then smoothing is performed to eliminate the jitter noise, and then the delay is made. After the delay, the process proceeds to step D for synthesis.
本发明将双声道耳机的音频信号分割成 6路音频信号，虚拟多声 道声场， 然后再进行合成输出， 使耳机的音频信号具有 5.1声道的功 能， 达到立体声输出的效果， 能够满足人们视听的需求。 The invention divides the audio signal of the two-channel earphone into six audio signals, the virtual multi-channel sound field, and then performs the composite output, so that the audio signal of the earphone has the function of 5.1 channel, and the stereo output effect is achieved, which can satisfy people. Audiovisual needs.
且本发明实现简单、 控制方便， 成本低廉， 可广泛应用于现有的 耳机中。 附图说明 The invention is simple to implement, convenient to control, low in cost, and can be widely applied to existing earphones. DRAWINGS
图 1为实现本发明的软件流程图。 1 is a software flow diagram for implementing the present invention.
图 2为实现本发明虚拟模块的结构示意图。 2 is a schematic structural diagram of implementing a virtual module of the present invention.
图 3为实现本发明头部模型处理的示意图。 Figure 3 is a schematic diagram of the processing of the head model of the present invention.
图 4为实现本发明头部模型模块和合成模块的结构示意图。 具体实施方式 4 is a schematic structural view of a head model module and a synthesis module embodying the present invention. detailed description
下面， 结合附图所示， 对本发明的具体实施做详细说明。 应当注 意的是， 下文的说明并不代表实现本发明的所有实现方式， 实现本发 明的方式并不以对附图的说明为限。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the specific implementation of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the following description is not to be construed as a limitation
构成本发明的主要流程如图 1 所示， 左声道和右声道的音频输 入， 对于输入的音频先经过虚拟声场处理， 然后再进行 5.1声道的模 型处理， 处理后的音频再进行合成。 其中， 左声道音频信号和右声道 音频信号输入到音频输入模块，音频输入模块将上述两路音频信号输
入到虚拟声场模块， 结合图 2所示， 由虚拟声场模块左右声道音频进 行平面分割， 生成 6路音频。 所生成的 6路音频包括左声道音频 、 右声道音频 R、 虚拟左声道音频 SL、 虚拟左声道音频 SR、 虚拟中置 音频 C和低音音频 SUB。 The main flow constituting the present invention is shown in Fig. 1. The audio input of the left channel and the right channel is subjected to virtual sound field processing for the input audio, and then 5.1 channel model processing is performed, and the processed audio is synthesized. . Wherein, the left channel audio signal and the right channel audio signal are input to the audio input module, and the audio input module inputs the above two audio signals Into the virtual sound field module, combined with the left and right channel audio of the virtual sound field module, as shown in FIG. 2, to generate 6 channels of audio. The generated 6 channels of audio include left channel audio, right channel audio R, virtual left channel audio SL, virtual left channel audio SR, virtual center audio C, and bass audio SUB.
音频的平面分割，是将左右声道的音频进行静态增益分割成 6路 音频信号， 其中， 虚拟左声道、 虚拟右声道、 虚拟中置的音频信号又 经过延时处理和音效过滤，然后进行输出，进行 5.1声道的模型处理。 The plane division of the audio is to divide the audio of the left and right channels into 6 audio signals by static gain, wherein the virtual left channel, the virtual right channel, and the virtual central audio signal are subjected to delay processing and sound filtering, and then The output is performed and 5.1 channel model processing is performed.
5.1 声道的模型处理是利用的模型函数把其中 5 路音频信号 ( L, R, C，SL，SR ) 按照一定的角度和相位进行移动， 让这些声音移到 指定的空间位置进行重新合成。 The 5.1-channel model processing uses a model function to move five of the audio signals (L, R, C, SL, SR) according to a certain angle and phase, and move the sounds to a specified spatial position for recombination.
如图 3所示， 具体位移的方法为： 左声道音频 L按照 -30° 角度、 0 ° 相位进行移动， 右声道音频 R按照 0° 角度、 0 ° 相位进行移动， 虚拟左声道音频 SL按照 110° 角度、 0° 相位进行移动， 虚拟左声道 音频 SR按照 -110° 角度、 0° 相位进行移动， 虚拟中置音频 C按照 30° 角度、 0° 相位进行移动； 低音音频 SUB信号不进行移动。 As shown in Figure 3, the specific displacement method is: Left channel audio L moves at -30° angle, 0 ° phase, right channel audio R moves at 0° angle, 0 ° phase, virtual left channel audio SL moves at 110° angle and 0° phase, virtual left channel audio SR moves at -110° angle, 0° phase, virtual center audio C moves at 30° angle, 0° phase; Bass audio SUB signal Do not move.
图 4所示进行音频位移后， 音频合成处理把之前， 需将 6路音频 信号 （L, R，C, SL, SR， SUB )进行平滑和延时处理， 因此将这 6路音频 信号进行过滤， 通过过滤去掉噪音， 再进行信号平滑处理， 处理位移 后的 6路音频信号的抖动噪音， 和防止输入音频数据越限。然后再通 过平滑处理， 处理以后的音频曲线更逼近音频信号的本来面目。 After the audio shift is shown in Figure 4, before the audio synthesis processing, 6 audio signals (L, R, C, SL, SR, SUB) need to be smoothed and delayed, so the 6 audio signals are filtered. The noise is removed by filtering, and then the signal is smoothed, the jitter noise of the shifted 6-channel audio signal is processed, and the input audio data is prevented from exceeding the limit. Then through the smoothing process, the audio curve after processing is closer to the original color of the audio signal.
再进行延时处理， 最后将 6路音频信号合成， 生成左右音频信号 输出。
总之， 以上所述仅为本发明的较佳实施例而已， 并不用以限制本 发明， 凡在本发明的精神和原则之内所作的任何修改、等同替换和改 进等， 均应包含在本发明的保护范围之内。
Then delay processing, and finally combine 6 audio signals to generate left and right audio signal output. In the above, the above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection.
Claims
1、 一种在耳机上建立 5.1 声道的方法， 其特征在于该方法包括 如下步骤： A method of establishing a 5.1 channel on a headset, the method comprising the steps of:
A、 音频输入； A, audio input;
B、 虚拟声场处理， 将输入的音频进行平面分割， 生成 6路新音 频； B. Virtual sound field processing, plane dividing the input audio to generate 6 new audio frequencies;
C、 5.1声道模型处理， 将新音频进行位移； C, 5.1 channel model processing, the new audio is shifted;
D、 合成， 再将移动后的音频信号和虚拟低音的音频信号进行合 成， 然后进行输出。 D. Combine, and then combine the moved audio signal with the virtual bass audio signal, and then output.
2、 如权利要求 1所述的耳机上建立 5.1声道的方法， 其特征在 于步骤 B中，所述的音频平面分割，是将左右声道的音频进行静态增 益分割成 6路音频信号， 其中， 虚拟左声道、 虚拟右声道、 虚拟中置 的音频信号又经过延时处理和音效过滤， 然后进行输出。 2. The method for establishing a 5.1 channel on a headset according to claim 1, wherein in step B, the audio plane is divided by static gain of the left and right channels into 6 audio signals, wherein The virtual left channel, the virtual right channel, and the virtual centered audio signal are subjected to delay processing and sound filtering, and then output.
3、 如权利要求 1所述的耳机上建立 5.1声道的方法， 其特征在 于所述步骤 B中， 所述 6路新音频为左声道、 右声道、 虚拟左声道、 虚拟右声道、 虚拟中置、 虚拟低音。 3. The method of establishing a 5.1 channel on a headset according to claim 1, wherein in the step B, the 6 channels of new audio are a left channel, a right channel, a virtual left channel, and a virtual right sound. Road, virtual center, virtual bass.
4、 如权利要求 1所述的耳机上建立 5.1声道的方法， 其特征在 于所述步骤 C中， 将新音频中的左声道、 右声道、虚拟左声道、虚拟 右声道、虚拟中置进行位移， 所述位移是按照一定的角度和相位进行 移动。 4. The method of establishing 5.1 channels on a headset according to claim 1, wherein in the step C, left channel, right channel, virtual left channel, virtual right channel in new audio, The virtual centering is displaced, and the displacement is moved according to a certain angle and phase.
5、 如权利要求 1所述的耳机上建立 5.1声道的方法， 其特征在 于所述步骤 C中，移动后的音频信号和虚拟低音的音频信号，在合成 之前先进行过滤处理， 以去掉和虚拟处理和 5.1声道模型处理过程中 产生的噪音和干扰。 5. The method of establishing 5.1 channels on a headset according to claim 1, wherein in the step C, the moved audio signal and the virtual bass audio signal are filtered before being combined to remove the sum. Virtual processing and 5.1 channel model processing Noise and interference generated.
6、 如权利要求 1所述的耳机上建立 5.1声道的方法， 其特征在 于所述 6路新音频信号先经过位移后， 再进行过滤， 消除噪音， 然后 再经过进行平滑处理， 消除抖动噪音， 然后进行延时， 延时后再进入 步骤 D进行合成。 6. The method of establishing 5.1 channels on a headset according to claim 1, wherein the six new audio signals are first filtered, then filtered, noise is removed, and then smoothed to eliminate jitter noise. Then, delay is performed, and after delay, it proceeds to step D for synthesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/082121 WO2013067712A1 (en) | 2011-11-12 | 2011-11-12 | Method for establishing 5.1 sound track on headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/082121 WO2013067712A1 (en) | 2011-11-12 | 2011-11-12 | Method for establishing 5.1 sound track on headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013067712A1 true WO2013067712A1 (en) | 2013-05-16 |
Family
ID=48288472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2011/082121 WO2013067712A1 (en) | 2011-11-12 | 2011-11-12 | Method for establishing 5.1 sound track on headset |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2013067712A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106060758A (en) * | 2016-06-03 | 2016-10-26 | 北京时代拓灵科技有限公司 | Processing method for virtual reality sound field metadata |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514608Y (en) * | 2001-11-15 | 2002-10-02 | 新众电脑股份有限公司 | Surrounding sound system capable of automatically investigating and setting multi-sound tracks |
| KR20050048785A (en) * | 2003-11-20 | 2005-05-25 | 엘지전자 주식회사 | Method for controling multi channel audio out in optical disc device |
| CN101001484A (en) * | 2006-01-10 | 2007-07-18 | 三星电子株式会社 | Method and apparatus to simulate 2-channel virtualized sound for multi-channel sound |
| US20080205675A1 (en) * | 2007-02-27 | 2008-08-28 | Samsung Electronics Co., Ltd. | Stereophonic sound output apparatus and early reflection generation method thereof |
-
2011
- 2011-11-12 WO PCT/CN2011/082121 patent/WO2013067712A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514608Y (en) * | 2001-11-15 | 2002-10-02 | 新众电脑股份有限公司 | Surrounding sound system capable of automatically investigating and setting multi-sound tracks |
| KR20050048785A (en) * | 2003-11-20 | 2005-05-25 | 엘지전자 주식회사 | Method for controling multi channel audio out in optical disc device |
| CN101001484A (en) * | 2006-01-10 | 2007-07-18 | 三星电子株式会社 | Method and apparatus to simulate 2-channel virtualized sound for multi-channel sound |
| US20080205675A1 (en) * | 2007-02-27 | 2008-08-28 | Samsung Electronics Co., Ltd. | Stereophonic sound output apparatus and early reflection generation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106060758A (en) * | 2016-06-03 | 2016-10-26 | 北京时代拓灵科技有限公司 | Processing method for virtual reality sound field metadata |
| CN106060758B (en) * | 2016-06-03 | 2018-03-23 | 北京时代拓灵科技有限公司 | The processing method of virtual reality sound field metadata |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100608025B1 (en) | Method and apparatus for simulating virtual sound for two-channel headphones | |
| JP4743790B2 (en) | Multi-channel audio surround sound system from front loudspeakers | |
| JP5696427B2 (en) | Headphone device | |
| US9913037B2 (en) | Acoustic output device | |
| CN103053180B (en) | For the system and method for audio reproduction | |
| KR100677629B1 (en) | Method and apparatus for simulating 2-channel virtualized sound for multi-channel sounds | |
| MY147141A (en) | Head related transfer functions for panned stereo audio content | |
| JP2008516539A5 (en) | ||
| JP2008131089A (en) | Sound system, sound device, and optimum sound field generating method | |
| KR101871234B1 (en) | Apparatus and method for generating sound panorama | |
| TW201735662A (en) | Frequency response compensation method, electronic device, and computer readable medium using the same | |
| US20060269071A1 (en) | Virtual sound localization processing apparatus, virtual sound localization processing method, and recording medium | |
| US20230276188A1 (en) | Surround Sound Location Virtualization | |
| JP2004266604A (en) | Process circuit, process program, and reproduction equipment of multichannel voice signal | |
| JP2010068023A (en) | Virtual surround audio system | |
| KR100873639B1 (en) | Apparatus and method to localize in out-of-head for sound which outputs in headphone. | |
| KR101546849B1 (en) | Method and apparatus for sound externalization in frequency domain | |
| WO2016088306A1 (en) | Sound reproduction system | |
| Baskind et al. | Binaural and transaural spatialization techniques in multichannel 5.1 production | |
| WO2013067712A1 (en) | Method for establishing 5.1 sound track on headset | |
| JP2004023486A (en) | Method for localizing sound image at outside of head in listening to reproduced sound with headphone, and apparatus therefor | |
| JP6512767B2 (en) | Sound processing apparatus and method, and program | |
| CN104394498A (en) | A three-channel holographic sound field playback method and sound field collecting device | |
| JP5418256B2 (en) | Audio processing device | |
| KR102155574B1 (en) | Method for noise cancelling of open headphone and apparatus using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11875530 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 10/10/14) |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 11875530 Country of ref document: EP Kind code of ref document: A1 |