WO2017101234A1 - 一种音频采集装置 - Google Patents

一种音频采集装置 Download PDF

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Publication number
WO2017101234A1
WO2017101234A1 PCT/CN2016/077366 CN2016077366W WO2017101234A1 WO 2017101234 A1 WO2017101234 A1 WO 2017101234A1 CN 2016077366 W CN2016077366 W CN 2016077366W WO 2017101234 A1 WO2017101234 A1 WO 2017101234A1
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Prior art keywords
audio
ear
section
sound
fixing devices
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PCT/CN2016/077366
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English (en)
French (fr)
Inventor
张瑞博
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森声数字科技（深圳）有限公司
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Priority to US15/484,484 priority Critical patent/US9967670B2/en
Publication of WO2017101234A1 publication Critical patent/WO2017101234A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/326—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/025—Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction

Definitions

  • the invention belongs to the field of audio recording, and in particular relates to an audio collecting device.
  • the change of field of view is realized by mouse or keyboard, and the user's visual system and motion perception system are separated, and with VR (Virtual Reality, the development and popularization of panoramic video technology, using head tracking to change the perspective of the image, so that the user's visual system and the motion perception system are connected, the user can observe the presence through the movement of the head.
  • the VR panoramic video device allows users to view video at any angle of 360°.
  • audio recording technology in panoramic video has also become a focus.
  • HRTF Head The Related Transfer Function, the head related transfer function, describes this effect, which is why the human brain can empirically determine the direction and distance from which the sound is emitted.
  • the existing audio recording device has a single sound source, a flat sound quality and no stereoscopic effect, and has a serious effect in the head, which cannot restore the real sound field, and cannot meet the requirements of real synchronization of sound and picture in the VR panoramic video technology.
  • the embodiment of the invention provides an audio collection device, which aims to solve the existing audio recording device, the sound source is single, the sound quality is flat and no stereoscopic effect, the head effect is serious, the real sound field cannot be restored, and the sound in the VR panoramic video technology cannot be satisfied.
  • An embodiment of the present invention is an audio capture device, comprising: a plurality of fixing devices arranged in a stack, the fixing device having an ear structure and a facial contour;
  • An ear canal provided in each of the ear structures, an audio collector for collecting audio signals at the ear canal, when the audio is collected, the horizontal orientation of the face of each of the fixing devices is different.
  • the invention provides a recording device, which collects audio information by setting a plurality of fixing devices arranged on each other, having an ear structure and a facial contour, at an ear canal opening of the ear structure for audio collection.
  • the face of each fixing device faces different horizontal directions, so that the audio collector acquires audio information at the ear canal opening of the ear structure in each horizontal direction, ensuring rich sound source and sound realness, rich in texture and three-dimensional sense, and capable of Restore the true sound field relationship, avoiding the head effect, and satisfying the requirements of real synchronization of sound and picture in VR panoramic video technology.
  • FIG. 1 is an overall structural diagram of an audio collection device according to an embodiment of the present invention.
  • FIG. 2 is a top plan view of an audio collection device according to an embodiment of the present invention.
  • FIG. 3 is a block diagram of an audio collector of an audio collection device according to an embodiment of the present invention.
  • the invention provides a recording device, which collects audio information by collecting a plurality of mutually arranged, having an ear structure and a facial contour fixing device, and setting an audio collector at an ear canal of the ear structure for audio collection.
  • the horizontal orientation of the face of each fixing device is different, so that the audio collector acquires audio information at the ear canal opening of the ear structure in each horizontal direction, ensuring rich sound source and sound realism, rich texture, and stereo field sensing effect. It can restore the true sound field relationship, avoid the head effect, and meet the requirements of real synchronization of sound and picture in VR panoramic video technology.
  • an audio collection device includes a plurality of fixed devices 10 stacked on each other, and a plurality of audio collectors 20; the fixing device 10 includes an ear structure 101 and a facial contour 102.
  • the audio collectors 20 are respectively disposed at the ear canal ports of the respective ear structures 101 of the respective fixing devices 10; when audio collection is performed, the faces of the respective fixing devices 10 are oriented in different horizontal directions, so that the ear structures of the respective fixing devices 10 are The 101 is also oriented in different horizontal directions, and the respective audio collectors 20 provided at the ear canal openings of the respective ear structures 101 are capable of acquiring audio signals from the ear canal openings of the different horizontally oriented ear structures 101.
  • the sound passes through the auricle, the outer ear, and the ear canal of the ear structure 101 of the fixation device 10, and the process of conduction to the eardrum is similar to the process of the sound being transmitted to the human ear, thereby enabling the audio collector provided at the ear canal of the ear structure 101. 20 can collect the same audio information as the natural sound heard by the human ear, rich in texture, ensuring the stereoscopic and authenticity of the sound.
  • the fixing devices 10 are arranged in a mutually stacked manner, so that the sound transmitted to the respective ear structures 101 can be minimized by the blocking and influence of the other fixing devices 10.
  • the fixation device 10 employs a human head model as an external structure, which can mimic the effect of sound on the refraction, diffraction, and diffraction of sound waves from a person's auricle, ear canal, human skull, etc., thereby
  • the audio capture device 20 placed in the ear structure 101 is capable of acquiring a realistic audio signal.
  • the human head model can be a simulated human head model or a fuzzy, simplified processing human head model, wherein the simulated human head model can make the collected audio signal more accurate and more targeted; and the blurred and simplified processed human head model reduces individual characteristics by
  • the head contour is averaging to improve the overall applicability; the above-mentioned way is to restore the real sound field for the majority of users, and has a realistic three-dimensional sense, avoiding the discomfort caused by the flat sound directly instilled in the traditional recording between the left and right ears. And a strong head effect.
  • the fixture 10 may be a complete human head model or a portion of a human head model, ie taken from a transverse section, wherein the transverse section comprises a top cross section 103 and a bottom cross section 104, by way of interception
  • the obtained human head model reduces the longitudinal height of the human head model while preserving the ear structure and the facial contour, thereby ensuring that a realistic and stereoscopic audio signal can be collected, and at the same time, the fixed device 10 is provided.
  • the vertical distance between the audio collectors 20 is as small as possible so that the acquired audio signals are as close as possible to the effects recorded on the same level.
  • the top cross section 103 is the cross section of the human head model eyebrow
  • the bottom cross section 104 is the cross section of the mouth of the human head model
  • the human head model intercepted from the above two cross sections retains the complete ear.
  • the structure 101 and the larger facial contour 102 not only allow the human head model to have a small height in the longitudinal direction, but also retain most of the contours that have a major influence on the sound transmitted to the human ear, ensuring the collection.
  • the top cross section 103 of the fixture 10 is connected to the center point of the bottom cross section 104 as the central axis F of the fixture 10, and the respective fixtures 10 are vertically aligned with the center axis F.
  • the cloth is arranged in a straight line so that the projections of the respective fixing devices 10 on the horizontal plane can overlap each other to the maximum extent, so as to simulate the state in which the human head is in the same position and the face faces different horizontal directions, and thus the ear canal is provided in the ear structure 101.
  • the audio collector 20 can collect audio signals at the ear canal opening of the ear structure 101 when the face is facing in different horizontal directions, avoiding the audio signal recorded due to the excessive spacing of the respective fixing devices 10 in the horizontal direction.
  • the sound that is not in the same position is presented, causing the user to experience a VR panoramic video, the picture is presented as a place, and the sound sounds like another place, so that the acquired sound and the VR panoramic video cannot be completely achieved. The effect of the match.
  • the number of fixing devices 10 is denoted by N, wherein N ⁇ 4, that is, the number of fixing devices 10 is at least four, so that the source of the collected audio signals is more abundant.
  • the faces of the respective fixing devices 10 are offset from each other around the central axis F by N equal angular intervals of a horizontal angle of 360 degrees, so that the ear structures 101 of the respective fixing devices 10 also surround the central axis F uniformly.
  • the corresponding audio collector 20 Facing the corresponding horizontal direction, the corresponding audio collector 20 is uniformly arranged in a 360-degree range in the horizontal direction, and the arrangement manner can cover the horizontal 360-degree range well and uniformly.
  • the number of the device 10 and the audio collector 20 is increased, and the device can uniformly capture the audio signals corresponding to the respective directions, thereby avoiding that some horizontal direction corresponding audio signals are not collected due to uneven arrangement, and thus cannot be combined with the VR panoramic video.
  • the picture is fully synchronized 360 degrees.
  • the number of the fixing devices 10 is eight, and the faces of the respective fixing devices 10 are offset from each other around the central axis F by two degrees at a horizontal angle of 45 degrees, so that eight fixing devices are provided.
  • 10 is distributed in a 360-degree range of a horizontal plane with a uniform horizontal angle, and two corresponding audio collectors 20 on the two ear structures 101 of each fixing device 10 form an acquisition group.
  • the horizontal angular separation of 45 degrees can fully meet the resolution of the human ear.
  • the audio signals acquired by each acquisition group can present the stereo field at the corresponding angle, so that the VR panoramic video The picture and sound can fit perfectly.
  • the audio collector 20 includes an acquisition terminal 201 for collecting audio signals, and is connected to the collection terminal 201 for transmitting the collected audio signals to the storage device.
  • the audio collector 20 can be a microphone, a pickup, or other device having an audio collection function, wherein the acquisition terminal 201 is an omnidirectional structure, so as to capture an audio signal transmitted by an external sound source through a medium such as air; the transmission end 202 can be The transmission line or the wireless module transmits the audio signal to the corresponding storage device by wire or wirelessly.
  • two audio collectors 20 on each fixed device 10 share one transmission end 202, that is, one collection end 201 is disposed in each of the two ear structures 101 of each fixing device 10,
  • the two collecting ends 201 are connected to a common transmitting end 202 to transmit the audio signals of the two channels collected on the fixing device 10 to the storage device; when the audio collecting device includes 8 fixing devices 10
  • there are 16 acquisition terminals corresponding to 8 transmission terminals and the 8 transmission terminals transmit audio signals to a storage device having at least 8 corresponding interfaces through a wired manner, or wirelessly transmit the audio signals.
  • the storage device having at least 8 corresponding interfaces through a wired manner, or wirelessly transmit the audio signals.
  • the audio collection device includes an ear structure and a facial contour fixing device, and the audio collector is disposed on the ear canal of the ear structure to collect audio information, and at the same time, the plurality of fixing devices are stacked on each other for audio collection.
  • the horizontal orientation of the face of each human head model is different, so that the audio collector acquires audio information at the ear canal opening of the ear structure in each horizontal direction, ensuring rich sound source and sound realism, rich in texture and three-dimensional sense, capable of Restore the true sound field relationship, avoiding the head effect, and satisfying the requirements of real synchronization of sound and picture in VR panoramic video technology.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Headphones And Earphones (AREA)

Abstract

一种音频采集装置，通过多个相互层叠排布、具有耳部结构及面部轮廓固定装置（10），将音频采集器（20）设于耳部结构（101）的耳道口处来采集音频信息，进行音频采集时，各固定装置（10）的面部的水平朝向不同，使音频采集器（20）获取朝向各水平方向的耳部结构（101）的耳道口处的音频信息，保证丰富的声音来源和声音的真实度，富有质感，具有立体声场感知效果，能还原真实的声场关系，避免了头中效应，满足了VR全景视频技术中声音和画面真实同步的要求。

Description

一种音频采集装置 技术领域
本发明属于音频录制领域，尤其涉及一种音频采集装置。
 背景技术
在传统的计算机图形技术中，视场的改变是通过鼠标或键盘来实现的，用户的视觉系统和运动感知系统是分离的，而随着VR（Virtual Reality，虚拟现实）全景视频技术的发展与普及，利用头部跟踪来改变图像的视角，使用户的视觉系统和运动感知系统之间建立起了联系，用户可以通过头部的运动去观察呈现在面前的场景。VR全景视频设备让用户可以以360°任意视角观看视频，为了使VR全景视频技术能够为用户带来立体感知体验，全景视频中的音频录制技术也成为一个焦点。人耳接收声波的过程中，耳廓、耳道、头盖骨、肩部等会对声波进行折射、绕射和衍射，之后再传导到耳鼓膜，被大脑神经所感知，这些都会对人耳所听到的声音造成一定的影响；在声学上，用HRTF（Head Related Transfer Function，头部相关传输函数）来描述这种影响，正因如此，人的大脑能根据经验判断出声音发出的方位和距离。
现有的音频录制设备，声音来源单一，音质扁平无立体感，头中效应严重，不能还原真实的声场，不能满足VR全景视频技术中声音和画面真实同步的要求。
技术问题
本发明实施例提供一种音频采集装置，旨在解决现有的音频录制设备，声音来源单一，音质扁平无立体感，头中效应严重，不能还原真实的声场，不能满足VR全景视频技术中声音和画面真实同步的要求的问题。
 技术解决方案
本发明实施例是这样实现的，一种音频采集装置，其特征在于，包括：多个相互层叠排布的固定装置，所述固定装置具有耳部结构及面部轮廓；
设于各所述耳部结构的耳道口，用于采集所述耳道口处的音频信号的音频采集器，当进行音频采集时，各所述固定装置的面部的水平朝向不同。
 有益效果
本发明提供了一种录音设备，通过多个相互层叠排布、具有耳部结构及面部轮廓的固定装置，将音频采集器设于耳部结构的耳道口处来采集音频信息，进行音频采集时，各固定装置的面部朝向不同水平方向，使音频采集器获取朝向各水平方向的耳部结构的耳道口处的音频信息，保证丰富的声音来源和声音的真实度，富有质感与立体感，能还原真实的声场关系，避免了头中效应，满足了VR全景视频技术中声音和画面真实同步的要求。
 附图说明
图1是本发明实施例提供的一种音频采集装置的整体结构图；
图2是本发明实施例提供的一种音频采集装置的俯视图；
图3是本发明实施例提供的一种音频采集装置的音频采集器模块图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供了一种录音设备，通过多个相互层叠排布、具有耳部结构及面部轮廓固定装置，将音频采集器设于耳部结构的耳道口处来采集音频信息，进行音频采集时，各固定装置的面部的水平朝向不同，使音频采集器获取朝向各水平方向的耳部结构的耳道口处的音频信息，保证丰富的声音来源和声音的真实度，富有质感，具有立体声场感知效果，能还原真实的声场关系，避免了头中效应，满足了VR全景视频技术中声音和画面真实同步的要求。
如图1所示，在本发明实施例中，一种音频采集装置，包括多个相互层叠的固定装置10，以及多个音频采集器20；固定装置10包含具有耳部结构101与面部轮廓102；音频采集器20分别设于各个固定装置10的各耳部结构101的耳道口处；当进行音频采集时，各个固定装置10的面部朝向不同的水平方向，使得各个固定装置10的耳部结构101也朝向不同的水平方向，设于各个耳部结构101的耳道口的各个音频采集器20便能够采集到这些不同水平朝向的耳部结构101的耳道口的音频信号。声音经过固定装置10的耳部结构101的耳廓、外耳、耳道，传导到耳鼓膜的过程类似于声音传入人耳的过程，从而使设于耳部结构101的耳道口的音频采集器20能够采集到与人耳听到的自然声音一样的音频信息，富有质感，保证了声音的立体感与真实度。
在本发明实施例中，将固定装置10以相互层叠的方式排布，可以使传到各耳部结构101中的声音受到其他固定装置10的阻挡和影响降到最小。
在本发明的一个实施例中，固定装置10采用人头模型作为外部结构，可以模仿声音从人的耳廓、耳道、人的盖骨等对声波的折射、绕射和衍射的效果，从而使置于耳部结构101中的音频采集器20能够采集到逼真的音频信号。人头模型可以是仿真人头模型或者经过模糊、简化处理的人头模型，其中仿真人头模型可以使采集的音频信号更精确、更具有针对性；而经过模糊、简化处理过的人头模型通过降低个体特征，使头部轮廓趋于平均水平，以提高整体适用性；通过上述方式为广大用户还原真实的声场，具有逼真的立体感，避免传统录音中将扁平声音直接灌输在左右耳之间造成的不适感及强烈的头中效应。
在本发明的一个实施例中，固定装置10可以是完整的人头模型或者是的一部分的人头模型，即由横向截面截取获得，其中横向截面包括顶部横截面103与底部横截面104，通过截取方式，获得的人头模型，在保留耳部结构及面部轮廓的情况下，使人头模型纵向高度缩小，既保证能够采集到富有质感、立体感的逼真音频信号，同时又使设于固定装置10上的音频采集器20之间的竖直距离尽量小，以使所采集到音频信号尽量接近于在同一个水平面上录制的效果。
作为本发明的一个实施例，顶部横截面103为人头模型眉毛所在横截面，底部横截面104为人头模型嘴部所在横截面，从上述两个横截面截取到的人头模型保留了完整的耳部结构101以及较大的面部轮廓102，这种截取方式不但使人头模型在纵向拥有较小的高度，同时又保留了对传递至人耳的声音起主要影响作用的大部分轮廓，保证了所采集音频信号的整体质感、立体感和真实还原度。
在本发明的一个实施例中，将固定装置10的顶部横截面103与底部横截面104的中心点连线作为固定装置10的中心轴F，各个固定装置10以中心轴F相互重合的方式竖直排布，这样各个固定装置10在水平面上的投影能够最大程度地相互重叠，以模拟现实中人头在同一个位置、面部朝向不同水平方向的状态，进而使设于耳部结构101耳道口的音频采集器20能够采集到同一个位置、面部朝向不同水平方向时耳部结构101的耳道口处的音频信号，避免了由于各个固定装置10在水平方向上间距过大，导致录制到的音频信号呈现的不是同一个位置的声音，造成用户在体验VR全景视频时，画面呈现的是一个地点，而声音却听起来是另一个地点的，使所获取的声音与VR全景视频的画面无法达到完全吻合的效果。
作为本发明的一个实施例，固定装置10的数量用N表示，其中N≥4，即固定装置10的数量至少有4个，使所采集的音频信号的来源更加丰富。
当进行音频采集时，各个固定装置10的面部朝向围绕中心轴F，以360度水平角的N等分角间距相互错开，这样各个固定装置10的耳部结构101也围绕中心轴F，均匀地朝向对应的水平方向，使对应的音频采集器20在水平方向360度范围内形成均匀排布的状态，这样的排布方式能够较好地、均匀地覆盖水平方向360度的范围，随着固定装置10与音频采集器20数量的增加，本设备能够均匀地捕捉到各个方向对应的音频信号，避免了由于排布不均造成有些水平方向对应的音频信号未采集到，从而无法与VR全景视频的画面进行360度完全同步。
参照图1、图2，作为本发明的一个实施例，固定装置10的数量为8个，各个固定装置10的面部围绕中心轴F、两两以45度水平角度相互错开，这样8个固定装置10以均匀的水平角分布在水平面的360度范围内，每个固定装置10的两个耳部结构101上对应的两个音频采集器20组成一个采集组， 45度的水平角间距已经能完全满足人耳的分辨率，每隔45度都存在一个采集组，每个采集组所获取的音频信号都能够呈现对应角度处的立体声场，使VR全景视频的画面与声音能够完美契合。
参照图1、图3，在本发明的一个实施例中，音频采集器20包括用于采集音频信号的采集端201，以及与采集端201相连、用于将所采集的音频信号传输至存储设备上的传输端202。音频采集器20可以是麦克风、拾音器或其他具有音频采集功能的装置，其中，采集端201为全指向性结构，以便于捕捉外界声源通过空气等介质传入的音频信号；传输端202可以是传输线或者无线模块，通过有线或无线的方式将音频信号传输至对应的存储设备上。
作为本发明的一种实施例，每个固定装置10上的两个音频采集器20共用一个传输端202，即每个固定装置10的两个耳部结构101中各置入一个采集端201，这两个采集端201与一个共同的传输端202相连，以将该固定装置10上所采集到的两个声道的音频信号传输至存储设备上；当音频采集装置包括8个固定装置10时，相应地就有16个采集端，并对应8个传输端，这8个传输端通过有线的方式将音频信号传输至至少具有8个对应接口的存储设备上，或者通过无线方式将音频信号发送至存储设备上。
上述发明实施例提供的音频采集装置，包括具有耳部结构及面部轮廓固定装置，将音频采集器设于耳部结构的耳道口来采集音频信息，同时多个固定装置相互层叠，进行音频采集时，各个人头模型的面部的水平朝向不同，使音频采集器获取朝向各水平方向的耳部结构的耳道口处的音频信息，保证丰富的声音来源和声音的真实度，富有质感与立体感，能还原真实的声场关系，避免了头中效应，满足了VR全景视频技术中声音和画面真实同步的要求。
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。

Claims (7)

  1. 一种音频采集装置，其特征在于，包括：
    多个相互层叠排布的固定装置，所述固定装置具有耳部结构及面部轮廓；
    设于各所述耳部结构的耳道口，用于采集所述耳道口处的音频信号的音频采集器，当进行音频采集时，各所述固定装置的面部的水平朝向不同。
  2. 如权利要求1所述的音频采集装置，其特征在于，所述固定装置为形状完整的或者沿横向截面截取获得的人头模型，所述横向截面包括顶部横截面与底部横截面。
  3. 如权利要求2所述的音频采集装置，其特征在于，所述人头模型为仿生人头模型或者经过模糊、简化处理的人头模型。
  4. 如权利要求2所述的音频采集装置，其特征在于，所述顶部横截面经过所述人头模型的眉毛，所述底部横截面经过所述人头模型的嘴部。
  5. 如权利要求2所述的音频采集装置，其特征在于，以所述固定装置的顶部横截面与底部横截面的中心点所在直线作为所述固定装置的中心轴，各所述固定装置以所述中心轴互相重合的方式竖直层叠排布。
  6. 如权利要求5所述的音频采集装置，其特征在于，所述固定装置的数量为N（N≥4），当进行音频采集时，各所述固定装置的面部围绕所述中心轴以360度水平角的N等分角间距相互错开。
  7. 如权利要求6所述的音频采集装置，其特征在于，所述固定装置的数量为8个。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07264632A (ja) * 1994-03-18 1995-10-13 Kageisa Noro ヘッド型映像・音響同時立体収録システム
CN101185368A (zh) * 2005-05-27 2008-05-21 马丁坎托拉咨询有限公司 用于声换能器的组件、系统以及方法
CN103123802A (zh) * 2011-11-18 2013-05-29 北京同步科技有限公司 课程录制系统及其音频处理方法
CN103634561A (zh) * 2012-08-21 2014-03-12 徐丙川 会议通信装置和系统
CN104301853A (zh) * 2014-08-22 2015-01-21 苏州乐聚一堂电子科技有限公司 拟人临场转播系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230402A (en) * 1975-09-04 1977-03-08 Victor Co Of Japan Ltd Multichannel stereo system
KR100986101B1 (ko) * 2008-05-30 2010-10-08 이승철 얼굴 분석 서비스 제공 방법 및 장치
CN202759558U (zh) * 2012-08-21 2013-02-27 徐丙川 音视频采集装置和系统
US9552747B1 (en) * 2015-03-13 2017-01-24 Protective Sports Equipment International Inc Helmet impact simulator and method
US20170035344A1 (en) * 2015-08-08 2017-02-09 Facense Ltd. Detection of an Allergic Reaction Using Thermal Measurements of the Face
CN205430592U (zh) * 2015-12-15 2016-08-03 森声数字科技（深圳）有限公司 一种音频采集装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07264632A (ja) * 1994-03-18 1995-10-13 Kageisa Noro ヘッド型映像・音響同時立体収録システム
CN101185368A (zh) * 2005-05-27 2008-05-21 马丁坎托拉咨询有限公司 用于声换能器的组件、系统以及方法
CN103123802A (zh) * 2011-11-18 2013-05-29 北京同步科技有限公司 课程录制系统及其音频处理方法
CN103634561A (zh) * 2012-08-21 2014-03-12 徐丙川 会议通信装置和系统
CN104301853A (zh) * 2014-08-22 2015-01-21 苏州乐聚一堂电子科技有限公司 拟人临场转播系统

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