WO2016033918A1 - Dispositif audio holographique et procédé de commande - Google Patents

Dispositif audio holographique et procédé de commande Download PDF

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Publication number
WO2016033918A1
WO2016033918A1 PCT/CN2015/000557 CN2015000557W WO2016033918A1 WO 2016033918 A1 WO2016033918 A1 WO 2016033918A1 CN 2015000557 W CN2015000557 W CN 2015000557W WO 2016033918 A1 WO2016033918 A1 WO 2016033918A1
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WO
WIPO (PCT)
Prior art keywords
sound field
signal
holographic
signal processing
playback
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PCT/CN2015/000557
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English (en)
Chinese (zh)
Inventor
张德明
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北京塞宾科技有限公司
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Application filed by 北京塞宾科技有限公司 filed Critical 北京塞宾科技有限公司
Publication of WO2016033918A1 publication Critical patent/WO2016033918A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control

Definitions

  • the invention relates to a holographic audio device and a control method.
  • Single-microphone recording is the easiest, but the sound field is also the most monotonous.
  • the original intention of stereo recording is to create a richer stereo field.
  • There are various ways to configure the microphone which are all trying to simulate the perception of the human ear. For example, delay, amplitude difference, phase, etc., but it is difficult to achieve the real human ear perception by simply placing the position of the microphone.
  • the simulated head recording can realize the realistic expression of the immersed three-dimensional sound field, but it is still mainly used in some professional laboratories as a testing tool. For a wide range of audio and video recording, it is extremely inconvenient to use and extremely expensive ( The simulation head, recording equipment, processing equipment, etc.
  • the current simulation head is mainly used for the test of communication equipment, not for the purpose of human stereo field perception, its texture and structure. There is still a big difference with the real human head, and these differences will ultimately affect the recorded sound field effect.
  • a holographic audio device comprising a microphone unit capable of collecting a three-dimensional sound field, wherein: the signal output end of the microphone unit is connected to the acquisition signal processing module, and the signal output terminal of the acquisition signal processing module is connected to the holographic sound field signal processing unit; the holographic sound field The signal output end of the signal processing unit is connected to the playback signal processing module, and the signal output end of the playback signal processing module The audio playback unit is connected; the holographic sound field signal processing unit is externally connected with a source coding module and a source decoding module.
  • the holographic sound field signal processing unit is connected with a storage module.
  • the microphone unit collects a three-dimensional sound field signal, and the acquisition signal processing module processes the acquired signal and converts it into a digital signal.
  • the digital signal is input to the holographic sound field signal processing unit, and the holographic sound field signal processing unit processes the sound field signal, and the processed signal is processed. After the source code is compressed, it is sent to the host through the network;
  • the host sends a signal to the holographic audio device through the network, and the signal is input to the holographic sound field signal processing unit after being decoded by the source, and the holographic sound field signal processing unit outputs the signal to the playback signal processing module to perform audio playback through the audio playback unit.
  • the network connection between the host and the holographic audio device may be WIFI, wired network, WAPI, Bluetooth.
  • the host can be a computer or a mobile phone.
  • An audio processing module is provided on the host for performing background noise cancellation and echo suppression processing on the acoustic signal.
  • the following sound field-related application operations, recording, storage, and monitoring playback of the sound field can be performed on the host; video recording, monitoring, and playback of the sound field; network communication of the sound field; background noise elimination, hearing diagnosis; and enhanced sound field-based binaural Audio health application.
  • the invention can effectively realize the recording and playback of the holographic sound field signal.
  • the microphone unit of the holographic audio device can collect the three-dimensional sound field signal, and the holographic sound field signal processing unit processes the sound field signal, and the processed signal is compressed by the source code and sent to the host through the network; the host can also transmit the holographic audio device through the network.
  • the sound field signal is recorded, and the holographic sound field signal processing unit is connected with a storage module, and can also store the recorded sound field signal.
  • the host can send a signal to the holographic audio device through the network, and the signal is decoded by the source and input into the holographic sound field signal processing unit, and the audio playback unit performs audio playback.
  • the holographic audio device can also be separately monitored for playback.
  • the host of the present invention may be a computer or a mobile phone, and the network connection between the host and the holographic audio device may be WIFI, wired network, WAPI, Bluetooth, and further facilitates recording and playback of the holographic sound field signal.
  • the host computer of the invention is provided with an audio processing module, which can perform background noise elimination and echo suppression processing on the acoustic signal, and can effectively improve the quality of the sound field signal.
  • FIG. 1 is a circuit block diagram of a holographic audio device and a host of the present invention.
  • the holographic audio device includes a microphone unit that can acquire a three-dimensional sound field, and the microphone unit includes an earphone-based or artificial head-based, but is not limited thereto. Sound field acquisition based on the microphone unit, and can be performed at the same time When listening to the loopback.
  • the signal output end of the microphone unit is connected to the acquisition signal processing module, and the signal output end of the acquisition signal processing module is connected to the holographic sound field signal processing unit; the signal output end of the holographic sound field signal processing unit is connected to the playback signal processing module, and the signal output end of the playback signal processing module is The audio playback unit is connected; the holographic sound field signal processing unit is externally connected with a source coding module and a source decoding module.
  • the holographic sound field signal processing unit is externally connected with a WIFI module, and the holographic sound field signal processing unit is connected with a storage module.
  • the microphone unit collects a three-dimensional sound field signal, and the acquisition signal processing module processes the acquired signal and converts it into a digital signal.
  • the digital signal is input to the holographic sound field signal processing unit, and the holographic sound field signal processing unit processes the sound field signal, and the processed signal is processed.
  • the source code is compressed, it is sent to the host through the network; the host can record the sound field signal transmitted by the holographic audio device through the network, and the holographic sound field signal processing unit is connected with the storage module, and also stores the recorded sound field signal.
  • the host sends a signal to the holographic audio device through the network, and the signal is input to the holographic sound field signal processing unit after being decoded by the source, and the holographic sound field signal processing unit outputs the signal to the playback signal processing module to perform audio playback through the audio playback unit.
  • the holographic audio device can also be separately monitored for playback.
  • the host can be a computer or a mobile phone.
  • the mobile phone is used as a host.
  • the network connection between the host and the holographic audio device may be WIFI, wired network, WAPI, Bluetooth.
  • An audio processing module is provided on the host for performing background noise cancellation and echo suppression processing on the acoustic signal.
  • the following sound field-related application operations, recording, storage, and monitoring playback of the sound field can be performed on the host; video recording, monitoring, and playback of the sound field; network communication of the sound field; background noise elimination, hearing diagnosis; and enhanced sound field-based binaural Audio health application.
  • the sound field needs to be reconstructed at the user end, and the sound field reconstruction end is not necessarily the same device as the sound field recording end.
  • the playback end is based on the earphone, it is a personal audio and communication scene.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif audio holographique et un procédé de commande. Selon cette invention : une unité à microphone acquiert un signal de champ acoustique tridimensionnel ; un module de traitement de signal acquis traite le signal acquis et le convertit en signal numérique ; ledit signal numérique est appliqué à l'entrée d'une unité de traitement de signal de champ acoustique holographique ; l'unité de traitement de signal de champ acoustique holographique traite le signal de champ acoustique ; le signal traité subit un codage de source puis une compression, et est envoyé à une machine principale par l'intermédiaire d'un réseau ; la machine principale envoie le signal au dispositif audio holographique par le biais du réseau ; le signal subit un décodage de source, puis est appliqué à l'entrée de l'unité de traitement de signal de champ acoustique holographique ; l'unité de traitement de signal de champ acoustique holographique transmet le signal à un module de traitement de signal de lecture ; et le son est lu au moyen d'une unité de lecture audio.
PCT/CN2015/000557 2014-09-01 2015-08-04 Dispositif audio holographique et procédé de commande WO2016033918A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410440363.7 2014-09-01
CN201410440363.7A CN104168534A (zh) 2014-09-01 2014-09-01 一种全息音频装置及控制方法

Publications (1)

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WO2016033918A1 true WO2016033918A1 (fr) 2016-03-10

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PCT/CN2015/000557 WO2016033918A1 (fr) 2014-09-01 2015-08-04 Dispositif audio holographique et procédé de commande

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CN (1) CN104168534A (fr)
WO (1) WO2016033918A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104217750A (zh) * 2014-09-01 2014-12-17 北京塞宾科技有限公司 一种全息音频录制回放方法
CN104168534A (zh) * 2014-09-01 2014-11-26 北京塞宾科技有限公司 一种全息音频装置及控制方法
CN104168465A (zh) * 2014-09-01 2014-11-26 北京塞宾科技有限公司 一种视频音频采集方法
CN104283697A (zh) * 2014-09-28 2015-01-14 北京塞宾科技有限公司 一种可采集声场信息的通信装置及通信方法
CN106126185A (zh) * 2016-08-18 2016-11-16 北京塞宾科技有限公司 一种基于蓝牙的全息声场录音通讯装置及系统
CN109660347A (zh) * 2019-02-24 2019-04-19 陕西师范大学 一种基于量子加密的数字音频传输系统

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KR101619578B1 (ko) * 2010-12-03 2016-05-18 프라운호퍼-게젤샤프트 츄어 푀르더룽 데어 안게반텐 포르슝에.파우. 기하학 기반의 공간 오디오 코딩을 위한 장치 및 방법
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US20040151066A1 (en) * 2003-01-14 2004-08-05 Kim Yang Hann Method of visualizing sound fields of individual sound sources using acoustic holography
CN101166377A (zh) * 2006-10-17 2008-04-23 施伟强 一种多语种环绕立体声的低码率编解码方案
CN102637119A (zh) * 2011-11-17 2012-08-15 朱琴琴 智能手持终端的外接显示控制器及控制方法
CN103634561A (zh) * 2012-08-21 2014-03-12 徐丙川 会议通信装置和系统
CN103453980A (zh) * 2013-08-08 2013-12-18 大连理工大学 一种基于压缩感知的声场参数获取方法
CN104168534A (zh) * 2014-09-01 2014-11-26 北京塞宾科技有限公司 一种全息音频装置及控制方法

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