VOICE CODECS

Comuniq offer the industry highest capacity
Voice compression codecs (Coder/Decoder) for the Texas Instrument C6000 series Digital Signal Processor. 

The ITU standard G.723.1 (5.3/6.3 kbps) and G.729A/B (8 kbps) have passed all ITU test
vectors and are now commercially available
for the SMAS Voice over IP Gateway. 

The industry recognizes the G.729 Standard as a significant advance in the field of digital audio
compression. Benefiting immediately from this
state-of-the-art standard are applications such as conferencing, voice over fax, voice over IP (Internet), voice over ATM, voice over DSL, voice over frame relay, cellular phones, and other applications where quality, delay and bandwidth are important. The G.729A/B is also available as a standalone product for implementation on other third party C6000 based boards. Contact sales for more information.    

G.729A/B specification:
Bandwidth: 8kbps (VAD disabled)
Bandwidth: 8/1.6/0kbps (VAD enabled)
Frame size: 10ms (80 samples) 
Algoritm delay: 10ms + 5ms look ahead
6.65 - 7.6 MCPS (Mega cycles per
sec. per channel, full duplex, VAD off, filter on)
5.7 - 7.65 MCPS (Full duplex, VAD on, filter on) 
All measurement is based on a Texas Instrument  C6201 with external SDRAM
at 100 MHz 
    

Demo G.711 64kbps

Demo G.723.1 5.3kbps

Demo G.723.1 6.3kbps

Demo G.729A/B 8kbps

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