 Digital Signal Processing Solutions Tools: Vocoder Algorithms | |
| Product Name: | G.729 CS-ACELP Speech Coder |
| Company Name: | ASPI Digital |
| Features & Benefits: |
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| TMS320 Devices Supported: | C3x |
| Data Rate (kbps): | 8kbps |
| Program Memory (k word): | 12.6kword |
| Data Memory (k word): | 2kword |
| Processor Loading (MIPS): | 25.8MIPS |
| Target Platform: | 60 MHz TMS320C3x |
| Hardware Requirements: | |
| Technical Support/Training Available: | YES |
| Overview: | ITU G.729 CS-ACELP is a speech coding and decoding standard that provides 4-kHz speech bandwidth at a bit rate of 8 kbps. The standard specifies a code-excited linear predictive coder that uses an algebraic codebook to code the excitation signal. The coder operates on speech frames of 10 ms (80 samples at an 8-kHz sample rate), computes the long-term predictor coefficients, and operates in an analysis-by-synthesis loop to find the excitation vector that minimizes the perceptually weighted error signal. |
| Ideal Performance: | This coder is well-suited to a wide range of applications, including both voice storage and voice communications. |
| Algorithm Verification: | The implementation is compatible with all the digital test sequences provided by the ITU for algorithm verification. |
| Availability: | Available in object code for the TMS320C3x |
| Operating System Used: | |
| Tools Supported By: | |
| Company Information: | ASPI Digital 1375 Peachtree ST NE STE 690 Atlanta GA 30309-3115 USA Tel: (404) 892-3200 Fax: (404) 892-7265 e-mail: aspi@aspi.com www:  http://www.aspi.com |
| ASPI Digital supplies the OEM with MPEG Audio Encoders, Acoustic Echo Cancellation products & DSP Platforms needed to integrate high quality algorithms into system-level products. | |
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