Home :: System Integration
:: Communications:: G729AB Voice CodecG.729AB Voice Codec
The G.729 codec is one of the most popular voice compression algorithms used in VoIP since it operates with relatively good quality
at a relatively low bandwidth of 8 kbit/s.
OEM Provider
Cranes Varsity |
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Features
- eXpress DSP Compliant
- Functions are C-callable
- Multichannel capable
- Encoder and decoder meet all ITU-T G.729AB compliance and
interoperability requirements
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Availability
G.729AB is available on the Texas Instruments TMS320™ DSP Family C64x and C64x+ platform DSP Generations.
Specifications
Bit rate: 8 kbps
Sampling Rate: 8 kHz
Delay: 5 msec algorithmic delay, 10 msec framing delay.
Resource Usage
|
DSP Generation |
Function |
Program Memory |
Table Memory |
Per Channel
Data Memory |
Scratch Memory |
Peak Loading(MCPS) |
C64x+
(Code in ext mem) |
Encoder |
59160 |
6252 |
1440 |
3400 |
5.73 |
Decoder |
25936 |
6252 |
1144 |
2060 |
1.46 |
C64x+
(Code in int mem) |
Encoder |
59160 |
6252 |
1440 |
3400 |
4.67 |
Decoder |
25936 |
6252 |
1144 |
2060 |
1.44 |
C64x
(Code in ext mem) |
Encoder |
72408 |
6256 |
1440 |
3400 |
16.10 |
Decoder |
27376 |
6684 |
1144 |
2060 |
5.74 |
C64x
(Code in int mem) |
Encoder |
72408 |
6256 |
1440 |
3400 |
5.72 |
Decoder |
27376 |
6684 |
1144 |
2060 |
1.65 |
Notes
1) For code in ext mem, L 2 cache must be enabled.
2) Peak MCPS measured on C64x+ cycle accurate simulator and C6416 cycle accurate simulator.
3) All Memory usage is given in units of byte.
