CN101179286A - Session television terminal and method of accessing to audio - Google Patents

Session television terminal and method of accessing to audio Download PDF

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Publication number
CN101179286A
CN101179286A CNA2007101787207A CN200710178720A CN101179286A CN 101179286 A CN101179286 A CN 101179286A CN A2007101787207 A CNA2007101787207 A CN A2007101787207A CN 200710178720 A CN200710178720 A CN 200710178720A CN 101179286 A CN101179286 A CN 101179286A
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CN
China
Prior art keywords
audio
digital wireless
wireless microphone
voice data
audio signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007101787207A
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Chinese (zh)
Inventor
田智平
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ZTE Corp
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ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CNA2007101787207A priority Critical patent/CN101179286A/en
Publication of CN101179286A publication Critical patent/CN101179286A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a conference video terminal which at least includes a digital wireless microphone receiving module and an audio encoding module. The digital wireless receiving module is used for recovering audio data from wireless audio signals received by the digital wireless microphone, and the audio encoding module is used for encoding the audio data. The invention also provides a method for audio access. By adopting the conference video terminal and the method for audio access provided by the invention, the distance for signal transmission is farther, the performance of anti-interference is strengthened, the trouble in laying wire is removed, and thus the microphone moves more flexibly within a wider range.

Description

The method of video conference terminal and accessing to audio
Technical field
The present invention relates to the audio frequency access technology, relate in particular to the method for a kind of video conference terminal and accessing to audio.
Background technology
Along with continuing to bring out of Digital Signal Processing, compression coding technology and transfer of data new technology, TV conference system is arisen at the historic moment.TV conference system is to utilize TV tech and equipment by various transmission networks, sets up the system of the video and audio communication between a plurality of users.The purpose of TV conference system is that the video conference terminal in a plurality of places that are separated by is linked together, and makes the participant of each side face the scene just like body and has a meeting together, the experience of talking with face-to-face.
A plurality of video conference terminals of conference participation and to control the multipoint control unit (MCU, Multipoint Control Unit) that each terminal communicates be the basic composition equipment of TV conference system.The video conference terminal of prior art is formed structural representation as shown in Figure 1, and as the medium transmitting terminal, the audio frequency that video conference terminal collects audio-source, video source, encoding video signal are again through sending to transmission network after multiplexing or the packing; As media receiving end, video conference terminal will carry out demultiplexing from the media code stream that transmission network receives or unpack, and send to audio amplifier again behind audio frequency, video decode, display is play.
Wherein, realize that it is important step in the video conferencing that video conference terminal inserts the audio frequency of audio-source, common audio-source is microphone, the method that realizes the video conference terminal accessing to audio in the prior art generally comprises two kinds: a kind of is wired access of adopting cable, and another kind is the wireless access that adopts Bluetooth microphone.Wired access of adopting cable is to connect microphone and video conference terminal by cable, microphone is sent to video conference terminal with the audio signal that collects by cable, this method is owing to be subjected to the restriction of length of cable, makes also corresponding being restricted of moving of microphone; Cable connects higher to cabling requirement, makes wiring bother; And cable weares and teares easily and comes off, and causes loose contact.Adopt the wireless access of Bluetooth microphone, be to pass through Bluetooth wireless transmission to the meeting television terminal after with the audio signal digitizing that collects by Bluetooth microphone, because the transmitting power of Bluetooth microphone is less, the actual transmissions distance is shorter, antijamming capability a little less than, therefore adopt the effect of this method accessing to audio bad, can't satisfy the practical application needs.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method for a kind of video conference terminal and accessing to audio, with the method wiring trouble that solves accessing to audio in the prior art, cable is easily impaired, the microphone moving range is limited, signal transmission distance is short and the more weak problem of antijamming capability.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of video conference terminal, comprise at least: digital wireless microphone receiver module and audio coding module, wherein,
The digital wireless microphone receiver module is used for recovering voice data according to the wireless audio signal that receives from digital wireless microphone;
The audio coding module is used for described voice data is encoded.
The working frequency range of described digital wireless microphone and digital wireless microphone receiver module is 2.4 GHzs.
The present invention also provides a kind of method of accessing to audio, comprising:
Receive the wireless audio signal that digital wireless microphone sends at working frequency range;
Recover voice data according to the wireless audio signal that is received;
Described voice data is encoded.
Before the audio signal that described reception digital wireless microphone sends, this method also comprises:
Digital wireless microphone carries out pickup to audio signal;
The audio signal of described digital wireless microphone after to pickup carry out sampled digitalization;
Described digital wireless microphone is modulated to working frequency range with digitized audio signal and launches to the external world.
Described voice data is encoded after, this method also comprises: to the coding after voice data store.
Described voice data is encoded after, this method also comprises: the voice data after will encoding sends to audio amplifier and plays.
Described voice data is encoded after, this method also comprises: the voice data after will encoding multiplexing or the packing after send to transmission network.
Described working frequency range is 2.4 GHzs.
The present invention adopts digital wireless microphone to gather audio signal, correspondingly, setting up the digital wireless microphone receiver module in video conference terminal receives audio signal, the treated voice data that obtains, thereby the access of realization audio signal, signal transmission distance of the present invention is farther, antijamming capability is stronger, saved the trouble of wiring, and microphone move more flexibly, moving range is wider.
Description of drawings
Fig. 1 is the composition structural representation of video conference terminal in the prior art;
Fig. 2 is the composition structural representation of a kind of video conference terminal of the present invention;
Fig. 3 is the audio signal transmission flow figure of a kind of accessing to audio method of the present invention;
Fig. 4 receives flow chart for the audio signal of a kind of accessing to audio method of the present invention.
Embodiment
The technical solution of the present invention is further elaborated below in conjunction with the drawings and specific embodiments.
The method of a kind of accessing to audio of the present invention, be that the employing digital wireless microphone is an audio-source, digital wireless microphone is converted into wireless audio signal with the digital audio signal that collects and sends to video conference terminal, video conference terminal recovers voice data from the wireless audio signal that receives, thereby realizes the access of video conference terminal to audio frequency.
For realizing the method for the invention described above accessing to audio, needing to adopt digital wireless microphone is audio-source, and the digital wireless microphone receiver module also need be set up in corresponding video conference terminal inside.As shown in Figure 2, Fig. 2 is the composition structural representation of a kind of video conference terminal of the present invention, and video conference terminal of the present invention comprises at least: digital wireless microphone receiver module and audio coding module.Carry out wireless connections between video conference terminal and the digital wireless microphone.Digital wireless microphone will be modulated to working frequency range and outwards launches after will collecting extraneous audio signal digitizing.Video conference terminal receives by the audio signal of digital wireless microphone receiver module to this working frequency range, and recovers voice data according to the audio signal that is received and offer the audio coding module.The audio coding module that is connected with the digital wireless microphone receiver module, after the voice data that receives carried out compressed encoding, or store, or send to audio amplifier and play, or send to multiplexing or packetization module, after multiplexing or packing, send to transmission network and transmit.
As shown in Figure 3, Fig. 3 is the audio signal transmission flow figure of a kind of accessing to audio method of the present invention, and this transmission flow mainly may further comprise the steps:
Step 301, digital wireless microphone by the pickup circuit to external world audio signal carry out pickup.
Step 302, the digital wireless microphone audio signal after to pickup is sampled, and realizes the digitlization of audio signal.
Step 303, digital wireless microphone is modulated to working frequency range with digitized voice data and sends.
The present invention adopts the 2.4GHz digital wireless microphone, and 2.4GHz is the working frequency range of this digital wireless microphone, after this digital wireless microphone is modulated to the working frequency range of 2.4GHz with digitized voice data, sends to the external world with the form of wireless audio signal.
Correspondingly, the reception flow process of audio signal as shown in Figure 4, Fig. 4 receives flow chart for the audio signal of a kind of accessing to audio method of the present invention, this reception flow process mainly may further comprise the steps:
Step 401, video conference terminal receives wireless audio signal by the digital wireless microphone receiver module.
Video conference terminal is modulated to 2.4GHz with the working frequency range of digital wireless microphone receiver module, because aforementioned digital wireless microphone adopts 2.4GHz to send audio signal, so the digital wireless microphone receiver module can be realized the reception of audio signal on this working frequency range.
Step 402, the digital wireless microphone receiver module of this video conference terminal recovers voice data with the wireless audio signal that is received according to 2.4G wireless microphone standard.
Step 403, the digital wireless microphone receiver module sends to the audio coding module with the voice data that is recovered, after by the audio coding module voice data being carried out compressed encoding, or store, or send to audio amplifier and play, or send to multiplexing or packetization module, after multiplexing or packing, send to transmission network and transmit.
Transmission and reception flow process through above-mentioned audio signal, the digital wireless microphone of promptly having realized audio signal inserts, the present invention adopts the audio frequency cut-in method of digital wireless microphone, cable compared to existing technology inserts, and has saved the trouble of wiring, and moving of microphone is more flexible, moving range is wider, blue teeth wireless compared to existing technology inserts, and signal transmission distance is farther, and antijamming capability is stronger.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (8)

1. a video conference terminal is characterized in that, comprises at least: digital wireless microphone receiver module and audio coding module, wherein,
The digital wireless microphone receiver module is used for recovering voice data according to the wireless audio signal that receives from digital wireless microphone;
The audio coding module is used for described voice data is encoded.
2. according to the described video conference terminal of claim 1, it is characterized in that the working frequency range of described digital wireless microphone and digital wireless microphone receiver module is 2.4 GHzs.
3. the method for an accessing to audio is characterized in that, comprising:
Receive the wireless audio signal that digital wireless microphone sends at working frequency range;
Recover voice data according to the wireless audio signal that is received;
Described voice data is encoded.
4. according to the method for the described accessing to audio of claim 3, it is characterized in that before the audio signal that described reception digital wireless microphone sends, this method also comprises:
Digital wireless microphone carries out pickup to audio signal;
The audio signal of described digital wireless microphone after to pickup carry out sampled digitalization;
Described digital wireless microphone is modulated to working frequency range with digitized audio signal and launches to the external world.
5. according to the method for claim 3 or 4 described accessing to audio, it is characterized in that, described voice data is encoded after, this method also comprises: to the coding after voice data store.
6. according to the method for claim 3 or 4 described accessing to audio, it is characterized in that, described voice data is encoded after, this method also comprises: the voice data after will encoding sends to audio amplifier and plays.
7. according to the method for claim 3 or 4 described accessing to audio, it is characterized in that, described voice data is encoded after, this method also comprises: the voice data after will encoding multiplexing or the packing after send to transmission network.
8. according to the method for claim 3 or 4 described accessing to audio, it is characterized in that described working frequency range is 2.4 GHzs.
CNA2007101787207A 2007-12-04 2007-12-04 Session television terminal and method of accessing to audio Pending CN101179286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101787207A CN101179286A (en) 2007-12-04 2007-12-04 Session television terminal and method of accessing to audio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101787207A CN101179286A (en) 2007-12-04 2007-12-04 Session television terminal and method of accessing to audio

Publications (1)

Publication Number Publication Date
CN101179286A true CN101179286A (en) 2008-05-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015135297A1 (en) * 2014-03-10 2015-09-17 中兴通讯股份有限公司 Wireless microphone, video conference system, and operating method therefor
CN105915293A (en) * 2016-06-28 2016-08-31 成都育芽科技有限公司 Voice digital information transmission system and method based on wireless acoustic signals
CN103873978B (en) * 2012-12-17 2017-06-27 联想(北京)有限公司 The method and electronic equipment of information processing
CN107153796A (en) * 2017-03-30 2017-09-12 联想(北京)有限公司 A kind of information processing method and electronic equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103873978B (en) * 2012-12-17 2017-06-27 联想(北京)有限公司 The method and electronic equipment of information processing
WO2015135297A1 (en) * 2014-03-10 2015-09-17 中兴通讯股份有限公司 Wireless microphone, video conference system, and operating method therefor
CN105915293A (en) * 2016-06-28 2016-08-31 成都育芽科技有限公司 Voice digital information transmission system and method based on wireless acoustic signals
CN107153796A (en) * 2017-03-30 2017-09-12 联想(北京)有限公司 A kind of information processing method and electronic equipment
CN107153796B (en) * 2017-03-30 2020-08-25 联想(北京)有限公司 Information processing method and electronic equipment

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Open date: 20080514