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

Author

Gopalakrishna, V. ; Kehtarnavaz, N. ; Loizou, P.

Author_Institution

Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX, USA

fYear

2010

fDate

14-19 March 2010

Firstpage

1670

Lastpage

1673

Abstract

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.

Keywords

cochlear implants; fast Fourier transforms; medical signal processing; notebook computers; speech coding; wavelet transforms; EFT; PDA platforms; cochlear implant; computational complexity; fixed-point accuracy; recursive DFT; wavelet transform; wavelet-based advanced combination encoder; Cochlear implants; Computational complexity; Discrete Fourier transforms; Frequency; Microphones; Personal digital assistants; Signal processing; Speech processing; Wavelet packets; Wavelet transforms; Advanced Combination Encoder; Cochlear implant signal processing; PDA platforms; real-time signal processing; wavelet packet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5495509

Filename

5495509