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News Release from: Tensilica | Subject: G.729AB speech codec
Edited by the Electronicstalk Editorial
Team on 01 February 2007
Audio engine gains speech codec for VoIP
Tensilica has introduced another codec for its popular HiFi 2 Audio Engine and Diamond Standard 330HiFi processor core which are specifically optimised for audio in mobile multimedia devices.
Tensilica has introduced another codec for its popular HiFi 2 Audio Engine and Diamond Standard 330HiFi processor core which are specifically optimised for audio in mobile multimedia devices The G.729AB speech codec, mostly used in voice over IP (VoIP) applications, is fully compliant with ITU (International Telecommunication Union) specifications for the G.729 standard with annexes A and B
This article was originally published on Electronicstalk on 30 Mar 2005 at 8.00am (UK)
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As an ITU standard, G.729 is one of the most tested and lowest bandwidth digital speech transmission standards.
"Our HiFi 2 Audio Engine customers have requested the G.729 speech codec for the development of their next generation VoIP enabled products", stated Larry Przywara, Tensilica's Director of Mobile Multimedia Products.
"With toll quality performance at very low bandwidth, G.729 support has become a standard requirement in VoIP systems".
The G.729 data compression algorithm compresses voice audio at low bitrates, offering opportunities for significant increases in bandwidth utilisation in existing telephony applications.
Tensilica's codec implements G729A, which is compatible with G.729 but requires less computation, and G729B, which is a silence compression scheme with discontinuous transmission (DTX), voice activity detection (VAD), comfort noise generator (CNG) and silence insertion descriptor (SID).
The G.729AB codec is available now for all licensees of Tensilica's Diamond Standard 330HiFi or the Xtensa HiFi 2 Audio Engine.
Pricing starts at US $8000 for a decoder single project licence.
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