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

A. Hirano, K. Nakayama
Kanazawa University, Kanazawa, Japan
International Symposium on Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009

@inproceedings{hirano2009implementation,

   title={Implementation of stereophonic acoustic echo canceller on nvidia geforce graphics processing unit},

   author={Hirano, A. and Nakayama, K.},

   booktitle={Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009. International Symposium on},

   pages={303–306},

   year={2009},

   organization={IEEE}

}

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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 PC-based teleconferencing.
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