 Digital Signal Processing Solutions Tools: Vocoder Algorithms | |
| Product Name: | G.729-Annex B CS-ACELP Voice Coder |
| Company Name: | D2 Technologies, Inc. |
| Features & Benefits: |
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| TMS320 Devices Supported: | C2xx C5x C54x C6x |
| Data Rate (kbps): | 8kbps |
| Program Memory (k word): | 11kword |
| Data Memory (k word): | 750kword |
| Processor Loading (MIPS): | 20MIPS |
| Target Platform: | |
| Hardware Requirements: | None. |
| Technical Support/Training Available: | YES 90 day warranty period plus optional design consultation, algorithm development, system integration and training services available. |
| Overview: | D2's G.729A-Annex B CS-ACELP voice coder algorithm module implements the ITU-T G.729-Annex A and Annex B voice coder standard. Annex B to G.729A defines a voice activity detector and comfort noise generator for use with G.729 or G.729A optimized for V.70 applications. It compresses codec or linear data to 8 kbps code using the Conjugate-Structure Algebraic-Code-Excited Linear-Predictive Coding Algorithm. Designed to the VP Open interface the G.729 Annex B voice coder module easily integrates with other VP Open modules, runs in real-time concurrently with other VP Open modules and handles any number of voice ports assigned to the DSP. |
| Ideal Performance: | Integrated with other VP Open modules and tested for concurrent real-time processing on multiple voice ports. |
| Algorithm Verification: | * ITU G.729A-Annex B test vectors - includes test sequences of voice data and other test signals under consideration * Numerical stability tests with tones and extreme values * Code error test with stationary and non-stationary errors * Mean Opinion Scores (MOS) test according to ITU-T P.80 specification for Absolute Category Rating * VP Open interface validation |
| Availability: | C2xx, C5x, C54x, C6x--Consult D2 |
| Operating System Used: | VP Open specifications |
| Tools Supported By: | |
| Company Information: | D2 Technologies, Inc. 104 West Anapamu Street Santa Barbara CA 93101 USA Tel: 805-564-3424 Fax: 805-966-2144 e-mail: sales@d2tech.com www:  http://www.d2tech.com |
| Voice processing solutions provider for computer telephony. Over 20 years of industry experience in algorithms, DSP implementation, real-time systems, telephony system integration. | |
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