應科院TI TMS320C55
ITU-T G.729A+B 編解碼器
(暫時只提供英文版本) |
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Processor
Texas Instruments TMS320C55 DSP range
Background
ASTRI implementation of the ITU-T G.729A+B codec includes
G.729A with the additional option of Annex B. Annex B implements
silence compression techniques to reduce the overall transmitted
bitrate. G.729B enables voice communication systems providing
discontinuous transmission (DTX) and this is achieved based
on Voice Activity Detection (VAD) algorithms and Comfort
Noise Generator (CNG) algorithms.
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Standard
Features |
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Full
ITU-T G.729A+B standard conformance implementation |
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Supported
sampling frequencies (Hz): 8K |
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ASTRI
Specific Features |
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Provides
API for streaming application through HPI |
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Provides API to switch between G.729A and G.729A+B on-the-fly |
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OS
compatibility: TI DSP/BIOS, Non-OS, Code Composer |
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| Performance |
| G.729A+B |
Processing
Loading
(MIPS) |
Program
Memory
(Kbytes) |
Data
Memory
(Kbytes) |
| Encoder |
14.4 |
16.4 |
12.7 |
| Decoder |
3.2 |
6.9 |
7.9 |
| Encoder
+ Decoder |
17.6 |
22.7 |
13.5 |
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