Speech Codecs comply with ITU-T G.729, Annex A and Annex B.May 11, 2009 -
Based on Code Excited Linear Prediction, speech vocoder models G.729, G.729A, and G.729AB operate on 10 ms frames with short algorithmic delays and deliver toll quality speech. Voice codecs are multi-channel-ready, and implementation passes all ITU-T test vectors. Available for most commercial processors, vocoders suit applications such as VoIP, wireless communications, video conferencing, and digital satellite communication systems.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
GAO Research Inc.
601 Milner Avenue, Suite 300
Toronto, , M1B 2K4
Canada
A New Series of G.729, G.729A and G.729AB Speech Codecs from GAO
Toronto, Canada -GAO Research Inc.(www.GAOResearch.com) recently released a performance enhanced version of the G.729 vocoder that complies with ITU-T G.729, Annex A and Annex B. Based on the Code Excited Linear Prediction (CELP). These vocoders operate on 10ms frames with short algorithmic delays and deliver toll quality speech.
GAO's implementation of these vocoders passes all ITU-T test vectors. The voice codecs are multi-channel ready and optimized for performance and are available for most commercial processors. Some applications for GAO's G.729 and G.729A/B vocoders include VoIP, voicemail, wireless communications, video conferencing, media gateway and digital satellite communication systems.
Each vocoder provides for easy integration into other systems, minimal software maintenance and a smooth upgrade path for next-generation customer products. GAO also adheres to stringent quality control procedures, which is reflected in the well structured code, detailed design documentation and well-defined design and test plan.
For more information about GAO's G.729, G.729A and G.729AB speech vocoders, please visit www.GAOResearch.com or contact Sales@GAOResearch.com.
About GAO Research Inc.
GAO Research Inc. is a recognized international leading provider of communications software to telecom and electronics companies and provides the most comprehensive and unique suite of modem, fax, telephony, speech software, VoIP, FoIP, fax relay and fax/modem/voice relay software for embedded applications for DSP and microprocessors.
For more information please visit http://www.GAOResearch.com GAO Research Inc. is a member of GAO Group, which also includes
1. GAO RFID Inc. -http://www.GAORFID.com
2. GAO Tek Inc. - http://www.GAOTek.com
3. GAO RFID Asset Tracking - http://www.GAORFIDAssetTracking.com
4. GAO Embedded -http://www.GAOEmbedded.com
5. GAO Instruments -http://www.GAOInstruments.com
6. GAO Comm - http://www.GAOComm.com
7. GAO Fiber Optics- http://www.GAOFiberOptics.com
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User comments about this story
audio codecs
i want to test a particular signal with different types of aodio codecs.how do i do it?can i do it online?
By harshit on Jun 11, 2009 01:18
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