 Digital Signal Processing Solutions Tools: Vocoder Algorithms | |
| Product Name: | ITU-T G.728 16Kbps CELP |
| Company Name: | Ensigma Ltd. |
| Features & Benefits: |
|
| TMS320 Devices Supported: | C3x |
| Data Rate (kbps): | 16kbps |
| Program Memory (k word): | 3kword |
| Data Memory (k word): | 4kword |
| Processor Loading (MIPS): | Max: 95% |
| Target Platform: | TMS320C3x 40 MHz |
| Hardware Requirements: | |
| Technical Support/Training Available: | Yes One week free expert support. |
| Overview: | Several techniques including CELP can now attain high quality speech for telephone bandwidth transmission at 16K-bits. However, all of these techniques require a coding delay of 40-60msecs which is unacceptable in many applications. ITU-T (formerly CCITT) Recommendation G.728 defines the standard for a low delay CELP coder which achieves speech quality equivalent to or better than that of the CCITT G.721 ADPCM 32k-bits coder and has a coding delay of only 2msecs. Ensigma have implemented the floating point G.728 standard on a single TMS320C3X device. |
| Ideal Performance: | |
| Algorithm Verification: | Fully compliant with ITU-T G.728 test vectors. |
| Availability: | Now. Available on EVM card. |
| Operating System Used: | |
| Tools Supported By: | |
| Company Information: | Ensigma Ltd. Turing House, Station Rd. Chepstow Wales NP6 5PB UK Tel: +44 1291 625422 Fax: +44 1291 620301 e-mail: cliff@ensigma.com www:  http://www.ensigma.com |
| Ensigma provides design and research services in the fields of telecommunications, speech and signal processing. We also have DSP implementations of many international standard algorithms. | |
Trademarks, Important Notice!