Codificador de Voz Pessoal

Raissa Bezerra Rocha, Gláucio Bezerra Rocha, Marcelo Sampaio de Alencar

DOI: 10.14209/sbrt.2012.77

Evento: XXX Simpósio Brasileiro de Telecomunicações (SBrT2012)

Keywords: Vocoder phonetic coding bit rate phoneme recog- nition

Abstract

This article presents the development of a trans- mission system that uses a Personal Voice Encoder. Developed for use mainly in mobile cellular systems, the encoder allows the transmission of voice signals with low bit rate. The voice signals are encoded with a bitrate of up to 150 bits/s. To evaluate the performance of the encoder, a subjetive ACR test was performed, and the evaluators classify the quality of most of the voice signals as either reasonable or good.

Download