Speech Codification Techniques Based on Analysis-by-Synthesis

Abstract

This paper presents a bibliographic review of speech signal coding techniques based on an approach know in the signal processing area as analisys-bysynthesis. Analisys-by-synthesis encoders are based on source-filter speech model; source and filter parameters calculation is made by synthesizing a speech signal and comparing it with the original speech signal to be encoded, parameters are chosen so as to minimize the distortion error. In other words, the analisys is made by synthesis.