CN104168465A - Video and audio collecting method - Google Patents
Video and audio collecting method Download PDFInfo
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- CN104168465A CN104168465A CN201410440366.0A CN201410440366A CN104168465A CN 104168465 A CN104168465 A CN 104168465A CN 201410440366 A CN201410440366 A CN 201410440366A CN 104168465 A CN104168465 A CN 104168465A
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- video acquisition
- acquisition device
- audio frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The invention relates to a video and audio collecting method. A holographic audio collecting device is involved in the method and comprises a microphone unit, a collected signal processing module, a holographic sound field signal processing unit and a source coding module. The microphone unit collects a three-dimensional sound field signal, the collected signal processing module is used for processing the collected signal and converting the collected signal into a digital signal, the digital signal is input into the holographic sound field signal processing unit which is used for processing a sound field signal, and the processed signal is transmitted to a video collecting device after source coding compression.
Description
Technical field
The present invention relates to a kind of video/audio acquisition method.
Background technology
In prior art, in a lot of equipment video record playback, be there is no the collection playback of sound field and control function, cause video tastes integral body not good.Common situation is, what accompany with video acquisition is monophony or normal stereo collection, although video has possessed the resolution of high definition on a lot of equipment, the resolution of sound field does not reach very high telepresenc far away.
Traditional cameras is generally focused on the shooting of high-quality video, and for the collection of sound, generally its built-in microphone voice is of low quality, and external microphone can provide higher quality, but space analysis ability is not all right.Recently the space surround sound capsule microphone occurring can provide some spatial sound field desorptiion abilities for video camera, but generally speaking space analysis power also very a little less than, space orientation ability is poor.
The mobile device explosive growth that the mobile phone of take is at present representative, video capture based on mobile phone has even also arrived high definition, but the non-constant of sound quality based on its built-in single channel or binary channels microphone records, certainly, also the recording accessory that had occurred afterwards some mobile phones, can provide the recording quality of high point, but space analysis ability is still very poor.
In field of video monitoring, be mostly to only have video there is no audio frequency, even if small part video monitoring equipment has had the ability of audio collection, but never have sound localization ability well, and be very important in field of video monitoring sound localization ability.
Except mobile phone, recent Wearable equipment is increased popularity also, and wherein the video capture based on glasses is also very popular, and audio collection quality is wherein also poor especially.
In sum, the sound quality of current several typical video acquisition devices, particularly space analysis poor quality.
The tradition way of recording comprises single Mike's recording, stereophonic recording (AB, XY, MS, ORTF).Single Mike's recording is the easiest, but sound field is also dull; The original intention of stereophonic recording is to build the more stereophonic field of horn of plenty, in microphone arrangement, there is diversified mode, all the apperceive characteristic of two ears to sound of attempting to simulate people, such as time delay, amplitude difference, phase place etc., yet by microphone putting position, be to be just difficult to reach the real auditory perceptual of simulation.Emulation number of people recording energy is enough realized the embodiment true to nature of immersion three-dimensional sound field, but being mainly still present at present some specialized laboratories uses as testing tool, for audio frequency and video widely, record, the one, be very inconvenient to use, also simultaneously very expensive (to comprise the emulation number of people, sound pick-up outfit, 1,000,000 Euros of left and right of a set of needs such as treatment facility), in addition, the current emulation number of people is mainly used in the test of the communication apparatus, be not intended to that the object of people's ear stereophonic field perception makes, its quality, still there is very large difference with the true number of people in structure, these differences can finally affect the sound field effect of recording.
On the other hand, the fast development of mobile broadband, the common tools such as the mobile phone of ordinary consumer, panel computer have had audio frequency and video to record ability except making a phone call, and a lot of digital products such as recording pen, the camera that can make a video recording etc. in most cases these equipment all based on internal microphone, carry out recorded voice, tonequality is poor on the one hand for these built-in microphones, and sound field represents also non-constant of ability simultaneously.
Also occurred that at present some provide the interface equipment of stereophonic recording for equipment such as mobile phones, these equipment interfaces also have very large distance from above-mentioned professional stereophony microphone, let alone immersion three-dimensional sound field.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of video/audio acquisition method, can gather holophonic field signal for video-unit.
Realize the technical scheme of the object of the invention:
A kind of video/audio acquisition method, it is characterized in that: there is holographic audio frequency harvester, holographic audio frequency harvester comprises microphone unit, collection signal processing module, holophonic field signal processing unit, information source coding module, microphone unit gathers three-dimensional sound field signal, collection signal processing module processes and converts to digital signal to collection signal, aforementioned digital signal inputs to holophonic field signal processing unit, holophonic field signal processing unit is processed acoustic field signal, signal after processing is after information source compression coding, by network, be sent to video acquisition device.
Video acquisition device comprises camera unit and video acquisition signal processing unit, and the signal of camera unit collection inputs to video acquisition signal processing unit, and video signal collective processing unit receives by network the signal that holographic audio frequency harvester transmits.
Holographic audio frequency harvester and video acquisition device are one, and the information source coding module of holographic audio frequency harvester is connected with the video acquisition signal processing unit of video acquisition device, and the signal of holographic audio frequency harvester output is directly sent to video acquisition device.
Video acquisition device can be sent to the equipment of far-end by vision signal and holophonic field signal by network.
Video acquisition device can be mobile phone, video camera, monitoring camera or the glasses that can carry out video capture.
The beneficial effect that the present invention has:
The present invention has holographic audio frequency harvester, holographic audio frequency harvester comprises microphone unit, collection signal processing module, holophonic field signal processing unit, information source coding module, microphone unit gathers three-dimensional sound field signal, holophonic field signal processing unit is processed acoustic field signal, signal after processing, after information source compression coding, can be sent to video acquisition device by network.Holographic audio frequency harvester and video acquisition device also can be one, and the signal of holographic audio frequency harvester output is directly sent to video acquisition device.The present invention is that video-unit gathers holophonic field signal by holographic audio frequency harvester, effectively improves the audio quality of video acquisition device.Video acquisition device of the present invention can be mobile phone, video camera, monitoring camera or the glasses that can carry out video capture, video acquisition device can be sent to the equipment of far-end by vision signal and holophonic field signal by network, further facilitate user's use.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of holographic audio frequency harvester of the present invention while being connected by network with video acquisition device;
Fig. 2 is holographic audio frequency harvester of the present invention and the video acquisition device schematic block circuit diagram while being one;
Fig. 3 is the working state schematic representation of embodiment mono-;
Fig. 4 is the working state schematic representation of embodiment bis-;
Fig. 5 is the working state schematic representation of embodiment tri-.
Embodiment
As shown in Figure 1, holographic audio frequency harvester comprises microphone unit, collection signal processing module, holophonic field signal processing unit, information source coding module, microphone unit comprise based on earphone or based on dummy head, but be not limited to this.Microphone unit gathers three-dimensional sound field signal, collection signal processing module processes and converts to digital signal to collection signal, aforementioned digital signal inputs to holophonic field signal processing unit, holophonic field signal processing unit is processed acoustic field signal, signal after processing, after information source compression coding, is sent to video acquisition device by network.Video acquisition device comprises camera unit and video acquisition signal processing unit, and the signal of camera unit collection inputs to video acquisition signal processing unit, and video signal collective processing unit receives by network the signal that holographic audio frequency harvester transmits.Video acquisition device can be sent to the equipment of far-end by vision signal and holophonic field signal by network.
As shown in Figure 2, holographic audio frequency harvester and video acquisition device can be one, the information source coding module of holographic audio frequency harvester is connected with the video acquisition signal processing unit of video acquisition device, and the signal of holographic audio frequency harvester output is directly sent to video acquisition device.
Video acquisition device can be sent to the equipment of far-end by vision signal and holophonic field signal by network.
Video acquisition device can be mobile phone, video camera, monitoring camera or the glasses that can carry out video capture.
Embodiment mono-, and as shown in Figure 3, video acquisition device is mobile phone 1.The video record of mobile phone, is not used embedded in mobile phone microphone, and uses holographic audio frequency recording microphone wind, and the track of video is holographic audio frequency.Holographic audio frequency harvester 2 is sent to mobile phone by network by holophonic field signal.Mobile phone 1 also can be taken pictures, and is furnished with the sound field audio-frequency information of holographic audio frequency microphone records simultaneously.The captured video that comprises holographic sound field can be stored in mobile phone 1, also can to remote subscriber, appreciate by Internet Transmission.When being stored in mobile phone 1, can carry out playback by cell phone software, allow user appreciate with the video that comprises holographic sound field.
Embodiment bis-, and as shown in Figure 4, video-unit is the glasses that can carry out video capture, and the microphone 3 that can gather three-dimensional sound field signal is arranged on glasses, and holographic audio frequency harvester and video acquisition device are one.The collection of holographic sound field is that the holographic microphone 3 based on leg of spectacles carries out.The storage of recording for control and the audio frequency and video of glasses both can directly be carried out on glasses, also can be undertaken by mobile phone 4.Glasses can not have camera yet or without camera, now can carry out sound field by holographic sound field microphone and record.When being used for carrying out the shooting of video or photo, camera that can position-based A (this camera can on the left side also can be on the right, also can the right and left have) to take, camera that also can position-based B is taken, and camera that also can position-based C is taken.The captured video that comprises holographic sound field or photo both can be stored on glasses or mobile phone, also can to remote subscriber, carry out in real time or the appreciation of off-line by Internet Transmission.
Embodiment tri-, and as shown in Figure 5, video acquisition device is monitoring camera 5, and holographic audio frequency harvester and video acquisition device are one.After holographic sound field is added to traditional video surveillance, just can carry out with the video monitoring of holographic sound field location, monitoring camera acquisition monitoring video, the holographic sound field of holographic sound field microphone 6 synchronous acquisitions, then Unified coding becomes video flowing to arrive far-end by Internet Transmission.The holographic sound field microphone 6 of cloud platform rotation functional requirement that monitoring camera 5 has is synchronizeed and is rotated with camera.
Claims (5)
1. a video/audio acquisition method, it is characterized in that: there is holographic audio frequency harvester, holographic audio frequency harvester comprises microphone unit, collection signal processing module, holophonic field signal processing unit, information source coding module, microphone unit gathers three-dimensional sound field signal, collection signal processing module processes and converts to digital signal to collection signal, aforementioned digital signal inputs to holophonic field signal processing unit, holophonic field signal processing unit is processed acoustic field signal, signal after processing is after information source compression coding, by network, be sent to video acquisition device.
2. method according to claim 1, it is characterized in that: video acquisition device comprises camera unit and video acquisition signal processing unit, the signal of camera unit collection inputs to video acquisition signal processing unit, and video signal collective processing unit receives by network the signal that holographic audio frequency harvester transmits.
3. method according to claim 2, it is characterized in that: holographic audio frequency harvester and video acquisition device are one, the information source coding module of holographic audio frequency harvester is connected with the video acquisition signal processing unit of video acquisition device, and the signal of holographic audio frequency harvester output is directly sent to video acquisition device.
4. method according to claim 3, is characterized in that: video acquisition device can be sent to the equipment of far-end by vision signal and holophonic field signal by network.
5. the method described in any one according to claim 1 to 4, is characterized in that: video acquisition device can be mobile phone, video camera, monitoring camera or the glasses that can carry out video capture.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440366.0A CN104168465A (en) | 2014-09-01 | 2014-09-01 | Video and audio collecting method |
| PCT/CN2015/000559 WO2016033920A1 (en) | 2014-09-01 | 2015-08-04 | Video and audio acquisition method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440366.0A CN104168465A (en) | 2014-09-01 | 2014-09-01 | Video and audio collecting method |
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| CN104168465A true CN104168465A (en) | 2014-11-26 |
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| CN201410440366.0A Pending CN104168465A (en) | 2014-09-01 | 2014-09-01 | Video and audio collecting method |
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| CN (1) | CN104168465A (en) |
| WO (1) | WO2016033920A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016033920A1 (en) * | 2014-09-01 | 2016-03-10 | 北京塞宾科技有限公司 | Video and audio acquisition method |
| WO2016045233A1 (en) * | 2014-09-28 | 2016-03-31 | 北京塞宾科技有限公司 | Communication device capable of collecting acoustic field information and communication method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112770212B (en) * | 2021-01-07 | 2022-07-22 | 深圳市天诺泰科技有限公司 | Wireless earphone, video recording system and method, and storage medium |
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| JP2008187363A (en) * | 2007-01-29 | 2008-08-14 | Sony Corp | Network equipment, voice data transmission method, voice data transmission program, monitor device and monitor camera system |
| CN101500169B (en) * | 2009-03-10 | 2013-03-13 | 武汉大学 | Multiplex audio/video compression transmission server |
| CN102082991A (en) * | 2010-11-24 | 2011-06-01 | 蔡庸成 | Method specially designed for earphone audition and used for simulating field holographic audio frequency |
| CN103501408B (en) * | 2013-09-23 | 2017-09-26 | 广东欧珀移动通信有限公司 | A kind of use mobile terminal shoots the method and system of video clip |
| CN104217750A (en) * | 2014-09-01 | 2014-12-17 | 北京塞宾科技有限公司 | A holographic audio record and playback method |
| CN104168465A (en) * | 2014-09-01 | 2014-11-26 | 北京塞宾科技有限公司 | Video and audio collecting method |
| CN104168534A (en) * | 2014-09-01 | 2014-11-26 | 北京塞宾科技有限公司 | Holographic audio device and control method |
| CN104284268A (en) * | 2014-09-28 | 2015-01-14 | 北京塞宾科技有限公司 | Earphone capable of acquiring data information and data acquisition method |
| CN104283697A (en) * | 2014-09-28 | 2015-01-14 | 北京塞宾科技有限公司 | Communication device and method capable of acquiring sound field information |
| CN204377136U (en) * | 2015-02-16 | 2015-06-03 | 北京塞宾科技有限公司 | A kind of holographic audio frequency gathers playback reproducer |
-
2014
- 2014-09-01 CN CN201410440366.0A patent/CN104168465A/en active Pending
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- 2015-08-04 WO PCT/CN2015/000559 patent/WO2016033920A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016033920A1 (en) * | 2014-09-01 | 2016-03-10 | 北京塞宾科技有限公司 | Video and audio acquisition method |
| WO2016045233A1 (en) * | 2014-09-28 | 2016-03-31 | 北京塞宾科技有限公司 | Communication device capable of collecting acoustic field information and communication method |
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| WO2016033920A1 (en) | 2016-03-10 |
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Application publication date: 20141126 |
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