A numerical method based on Padé's approximation to simulate and design a low-cost auditory filter for speech processing
✍ Scribed by V. Rodellar; P. Gómez; M. Hermida; A. Moreno
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 760 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0928-4869
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✦ Synopsis
Rodellar, V., P. G6mez, M. Hermida and A. Moreno, A numerical method based on simulate and design a low-cost auditory filter for speech processing, Simulation (1993) 17-29.
Pad& approximation to Practice and Theory
I
The present work summarizes the efforts made to design a set of digital filters amenable of emulating the frequency selectivity of the inner ear, through the application of a set of common techniques in the field of digital signal processing, viz. Pade's approximation. It is shown that the resulting set of digital filters is realizable, stable and causal, and reproduces the elementary characteristics in time and frequency of a real auditory system at a reasonably low computational cost, which renders the model amenable for its use in the design of VLSI circuitry to substitute or complement human hearing, and for speech processing.