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Real-time implementation of wavelet-based Advanced Combination Encoder on PDA platforms for cochlear implant studies

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3 Author(s)
Gopalakrishna, V. ; Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX, USA ; Kehtarnavaz, N. ; Loizou, P.

This paper presents the real-time implementation of wavelet-based Advanced Combination Encoder on PDA platforms for cochlear implant studies. Three real-time implementations using the conventional FFT, our previous recursive DFT, and the wavelet transform are compared in terms of computational complexity, processing time and fixed-point accuracy. The results obtained show that this new real-time implementation on PDA platforms is computationally comparable to our previous real-time recursive DFT implementation while achieving a higher accuracy or a lower quantization error.

Published in:

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Date of Conference:

14-19 March 2010