Abstract
This paper presents a bit-rate conversion system for an efficient communication between two CVSD systems with different bit-rates. To ensure the robustness to external noises, the presented system is implemented in digital domain using a general purpose digital signal processor (DSP). In order to overcome the problems caused by different bit-rate and time-constants, several methods are considered in this study. In addition, a significant simplification of the system complexity is obtained by introducing the IIR filter to the decimation/interpolation process. The use of the IIR filter provides comptational advantages over the conversion system employing FIR filters. because the linear phase is not a critical issue in this application. By modifying the algorithm based on the IIR filter, a 3-channel full-duplex conversion algorithm was successfully implemented on a single DSP. Experimentals results are presented to exihibit the consistent and reliable performance of the bit-rate conversion system.
| Original language | English |
|---|---|
| Pages | 665-668 |
| Number of pages | 4 |
| Publication status | Published - 1997 |
| Event | 5th European Conference on Speech Communication and Technology, EUROSPEECH 1997 - Rhodes, Greece Duration: 1997 Sept 22 → 1997 Sept 25 |
Conference
| Conference | 5th European Conference on Speech Communication and Technology, EUROSPEECH 1997 |
|---|---|
| Country/Territory | Greece |
| City | Rhodes |
| Period | 97/9/22 → 97/9/25 |
Bibliographical note
Publisher Copyright:© 1997 5th European Conference on Speech Communication and Technology, EUROSPEECH 1997. All rights reserved.
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Software
- Linguistics and Language
- Communication