Title :
Noise reduction in speech signals using a TMS320C31 digital signal processor
Author :
Filho, Jozue Vieira ; Marçal, Luiz A P
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Estadual Paulista, Ilha Solteira, Brazil
Abstract :
This paper describes a speech enhancement system (SES) based on a TMS320C31 digital signal processor (DSP) for real-time application. The SES algorithm is based on a modified spectral subtraction method and a new speech activity detector (SAD) is used. The system presents a medium computational load and a sampling rate up to 18 kHz can be used. The goal is to use it to reduce noise in an analog telephone line
Keywords :
digital signal processing chips; real-time systems; signal sampling; speech enhancement; voice communication; 0 to 18 kHz; SAD; SES; TMS320C31 digital signal processor; analog telephone line; computational load; noise reduction; real-time application; sampling rate; spectral subtraction method; speech activity detector; speech enhancement system; speech signals; Detectors; Digital signal processors; Filters; Noise reduction; Signal processing; Signal sampling; Signal to noise ratio; Speech enhancement; Speech processing; Telephony;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.951468
