Implementation of stereophonic acoustic echo canceller on nVIDIA GeForce graphics processing unit

Akihiro Hirano, Kenji Nakayama
2009 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