Silicon cochlea: a digital VLSI implementation of a quantitative model of the auditory system
Brucke, Matthias and Hansen, M. and Kollmeier, B. and Mertsching, B. and Schwarz, A. and Nebel, Wolfgang
In this paper a digital VLSI implementation of a quantitative model of the auditory system is presented,which includes several processing stages physiologically and psychoacoustically motivated by the function of the human ear.The model was successfully applied to a wide range of applications from psychoacoustical experiments to speech recognition.The hardware design is derived from a C/C++notation of the algorithms using oating point arithmetics.An aplication of the model (automatic speech quality measurement)was used to determine the necessary precision for the hardware implementation of the model using xpoint arithmetic.The processing scheme is divided into designs for two FPGAs and will be converted into ASICs in a ater version.The implementation of the model as dedicated hardware provides e cient co-processing power and allows implementations of complex auditory-based speech processing a gorithms in real time because the chipset performs substantial parts of the necessary calculations.
01 / 1999
inproceedings
ASA 1999, Collected papers, 137. Meeting of the Acoustical Society of America and the 2. Convention of the European Acoustics Association: Forum Acusticum, integratin the 25. German Acoustics DAGA DAG
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