CN204013869U

CN204013869U - A kind of device that promotes network teleconference integral type terminal audio

Info

Publication number: CN204013869U
Application number: CN201420499676.5U
Authority: CN
Inventors: 高锦欣; 丁超
Original assignee: CHENGDU FACEMEETING VIDEO TECHNOLOGY Co Ltd
Current assignee: CHENGDU FACEMEETING VIDEO TECHNOLOGY Co Ltd
Priority date: 2014-09-01
Filing date: 2014-09-01
Publication date: 2014-12-10
Anticipated expiration: 2024-09-01

Abstract

The utility model relates to a kind of apparatus for processing audio, and it discloses a kind of device that promotes network teleconference integral type terminal audio, solves the problem of the sound scheme existence of video conference terminal all-in-one in conventional art.It comprises: pickup module, audio process, signal amplification module, waveform filtering module; Described pickup module, signal amplification module, waveform filtering module and audio process are connected in series successively.The utility model amplifies processing by signal amplification module to the audio signal gathering, thereby promotes the volume output of receiving terminal; By waveform filtering module, rational filtered voice frequency is set, reduce the noise that pickup module gathers as far as possible, thereby promoting user experiences, be not only applicable to network teleconference integral type terminal, also be applicable to the electronic equipment of other integrated Speech input and output, such as notebook computer, the electronic products such as panel computer.

Description

A kind of device that promotes network teleconference integral type terminal audio

Technical field

The utility model relates to a kind of apparatus for processing audio, relates to specifically a kind of device that promotes network teleconference integral type terminal audio.

Background technology

In video conference, all kinds of mini-sessions, Remote Video Interview, long-range commercial negotiation, long-distance video are visited etc. in types of applications scene to be increased gradually to the demand of video conference terminal all-in-one, why very welcome in this class application scenarios video conference terminal all-in-one is is because it has following characteristics: 1, realize light-weighted video conference terminal, improve the portability of video conference terminal, its outward appearance is similar with a Daepori talking computer liquid crystal display, mobile very convenient; 2, realize the high integration of video conference terminal, integrated high definition video collecting, audio collection, video output, audio frequency output, touch control operation, wireless WIFI etc., reach real communication effectiveness face-to-face; 3, video conference terminal all-in-one height integrated after, reduce user's installation, debugging work, allow the user can a key starting up holding video conference, without other ancillary equipment, very easy to use; 4, full touch control operation, in conjunction with the video conference terminal interface after optimizing, has removed trying out of conventional mouse keyboard, remote controller, makes holding of video conference more succinct.

The core of video conference effect is definition and the fluency of audio frequency and video, the effect of audio frequency is mainly reflected in local collection, noise reduction, coding, laser propagation effect and far-end reception, decoding, result of broadcast, if occur that in conference process sound is unintelligible, noise large or the phenomenon of choppy voice, user experiences and is certain to have a greatly reduced quality.

The sound scheme of existing video conference terminal all-in-one mainly contains two kinds of modes, and a kind of is the microphone that utilizes camera to carry, and the second is built-in traditional omnidirectional wheat, and this two schemes exists following problem:

1, the background noise gathering is excessive, due to sensitivity problem, can collect the sound sending such as ringing sound of cell phone, switch door and window, walk etc., and this type of sound is also sneaked into meeting, affects the other side's auditory perception;

2, the people's speaking volume collecting is too small, and speaker must compare near-earth near all-in-one, to hearing sizeable volume just now;

3, the audio distortions gathering, the other side listen the sound of speaker's sound when talking face to face at ordinary times inconsistent, even with making a phone call time ratio, also be not as true as the effect of making a phone call;

4, the sound collecting sounds more spacious, in more quiet indoor environment, the other side listen sound have a kind very spacious sensation, not soft.

Above-mentioned factor all can have influence on the overall experience effect of video conference; Therefore, the application is necessary to propose a kind of device that promotes network teleconference integral type terminal audio.

Utility model content

Technical problem to be solved in the utility model is: propose a kind of device that promotes network teleconference integral type terminal audio, solve the problem of the sound scheme existence of video conference terminal all-in-one in conventional art.

The utility model solves the problems of the technologies described above adopted technical scheme:

Promote a device for network teleconference integral type terminal audio, be applied in network teleconference integral type terminal, it comprises:

Pickup module, audio process, signal amplification module, waveform filtering module; Described pickup module, signal amplification module, waveform filtering module and audio process are connected in series successively.

Concrete, described pickup module is electret capacitor omnidirectional wheat.

The beneficial effects of the utility model are:

By signal amplification module, the audio signal gathering is amplified to processing, thereby promote the volume output of receiving terminal; By waveform filtering module, rational filtered voice frequency is set, reduce the noise that pickup module gathers as far as possible, thereby promoting user experiences, the utility model scheme is not only applicable to network teleconference integral type terminal, also be applicable to the electronic equipment of other integrated Speech input and output, such as notebook computer, the electronic products such as panel computer.

Accompanying drawing explanation

Fig. 1 is the apparatus structure schematic diagram that promotes network teleconference integral type terminal audio in embodiment;

In figure, M1 is pickup module, and P1 is signal amplification module, and P2 is waveform filtering module, and R1 is audio process.

Embodiment

The utility model is intended to propose a kind of device that promotes network teleconference integral type terminal audio, solves the problem of the sound scheme existence of video conference terminal all-in-one in conventional art by pure hardware plan.The core of its scheme is: by signal amplification module, the audio signal gathering is amplified to processing, thereby promote the volume output of receiving terminal; By waveform filtering module, rational filtered voice frequency is set, reduces the noise that pickup module gathers as far as possible.

Below in conjunction with drawings and Examples, scheme of the present utility model is further described:

As shown in Figure 1, the device of the lifting network teleconference integral type terminal audio in this example comprises: pickup module M1, audio process R1, signal amplification module P1, waveform filtering module P2; Described pickup module M1, signal amplification module P1, waveform filtering module P2 and audio process R1 are connected in series successively.

On concrete enforcement, pickup module M1 can adopt Japanese imported with original packaging electret capacitor omnidirectional wheat, has the acoustic fidelity of collection, the moderate feature of sensitivity; Signal amplification module P1 can adjust multiplication factor between 20-50 times according to actual conditions, adopts 5V single power supply, and VCC and GND connect respectively VDD-to-VSS, and IN is signal input part, and OUT, for the signal output part after amplifying, directly outputs to waveform filtering module P2; Waveform filtering module P2 can adjust frequency as 300-3000Hz according to actual conditions, there is the effect of removing noise, adopt 5V single power supply, VCC and GND connect respectively VDD-to-VSS, IN is that signal input part meets signal amplification module P1, OUT is the Audio IN that signal output part connects audio process, as the sound waveform input after shaping; Audio process R1 mainly carries out Code And Decode to voice signal in whole system, VCC 5V in R1, scope can be between 3V-15V, if without 5V voltage, can also can reach same effect at other local 5V that introduce of mainboard, GND is audio frequency ground, must use in pairs with Audio IN, otherwise signal can not be input to audio process R1 audio frequency;

According to above-mentioned hardware annexation, connect circuit, after equipment energising, can see the red led Chang Liang of P1, illustrate that power supply is normal, equipment enters operating state, participant's sound is gathered by pickup module M1, through signal amplification module, P1 amplifies signal, pass through again waveform filtering module P2 by noise removal, the sound obtaining enters audio process R1 and carries out audio coding, buffering, be increased to FEC queue verification, through CPU, process again, the voice data of processing through CPU is packaged into G722.1 code stream and is sent to Conference server end by Ethernet interface or WIFI, MC (multipoint controller) by Conference server sends to audio code stream the reception client of appointment, receiving terminal is received after audio pack, delivered to buffer queue and carried out verification, if verification failure, according to the automatic repair data bag of FEC, if verification succeeds is called audio process decoding, sound through decoding is sent to audio output apparatus, and receiving terminal can be heard clear participant's sound true to nature.

It should be noted that, the signal amplification module P1 in the utility model and waveform filtering module P2 all adopt hardware circuit of the prior art or chip to realize, and in the application, no longer its concrete structure are repeated.

The scheme that the application asks for protection comprises but is not limited only to above-described embodiment, and equivalent modifications/replacement that those skilled in the art do under connotation of the present utility model on above-described embodiment scheme basis is all in the utility model protection range.

Claims

1. promote a device for network teleconference integral type terminal audio, be applied to, in network teleconference integral type terminal, comprise pickup module and audio process, it is characterized in that: also comprise signal amplification module and waveform filtering module; Described pickup module, signal amplification module, waveform filtering module and audio process are connected in series successively.

2. a kind of device that promotes network teleconference integral type terminal audio as claimed in claim 1, is characterized in that, described pickup module is electret capacitor omnidirectional wheat.