| Paper: | AE-P2.12 | ||
| Session: | Echo Cancellation and Active Noise Control | ||
| Time: | Wednesday, May 19, 15:30 - 17:30 | ||
| Presentation: | Poster | ||
| Topic: | Audio and Electroacoustics: Echo Cancellation | ||
| Title: | A MEMORY-EFFICIENT ALGORITHM FOR NETWORK ECHO CANCELLATION IN VOIP SYSTEMS | ||
| Authors: | Anil Ubale; Intel Corporation | ||
| Abstract: | In recent years, considerable interest has been focused on voice-over-IP (VoIP) systems. VoIP media gateways implement voice and packet processing for hundreds of channels. One of the limiting factors in such high channel-density voice processing applications is the memory requirement. A substantial amount of memory is used to store the coefficients of network echo canceller. This paper describes a new algorithm that reduces the memory requirements for echo cancellation by a factor of 2 to 4. When the new memory reduction algorithm is combined with standard NLMS, it also provides faster convergence rate, and better echo path tracking than the standard NLMS algorithm. | ||
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