Evolvable hardware applied to voice recognition

• Autor(a) principal: Mantovani, Suely Cunha Amaro [UNESP]
• Data de Publicação: 2003
• Outros Autores: De Oliveira, José Raimundo
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/67579
• topic: Evolvable Hardware; Genetic Algorithms; Reconfigurable Hardware; Voice Digital Processing; Computer hardware; Digital signal processing; Genetic algorithms; Learning algorithms; Online systems; Programmable logic controllers; Real time systems; Evolvable hardware (EHW); Reconfigurable hardware; Voice digital processing; Voice patterns; Speech recognition

This paper presents some results of the application on Evolvable Hardware (EHW) in the area of voice recognition. Evolvable Hardware is able to change inner connections, using genetic learning techniques, adapting its own functionality to external condition changing. This technique became feasible by the improvement of the Programmable Logic Devices. Nowadays, it is possible to have, in a single device, the ability to change, on-line and in real-time, part of its own circuit. This work proposes a reconfigurable architecture of a system that is able to receive voice commands to execute special tasks as, to help handicapped persons in their daily home routines. The idea is to collect several voice samples, process them through algorithms based on Mel - Ceptrais theory to obtain their numerical coefficients for each sample, which, compose the universe of search used by genetic algorithm. The voice patterns considered, are limited to seven sustained Portuguese vowel phonemes (a, eh, e, i, oh, o, u).