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2009 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)
This paper presents an implementation of a stereophonic acoustic echo canceller on nVIDIA GeForce graphics processor and CUDA software development environment. For efficiency, fast shared memory has been used as much as possilbe. A tree adder is introduced to reduce the cost for summing thread outputs up. The performance evaluation results suggest that Even a low-cost GPU's with a small number of shader processor greatly helps the echo cancellation for low-cost PCbased teleconferencing.doi:10.1109/ispacs.2009.5383842 fatcat:xwhsnwovfzhrbnbnstpql7oq5i