A low-complexity silence suppression algorithm for mobile communication in noisy environments

Author

Beritelli, F. ; Casale, S. ; Serrano, S.

Author_Institution

Dipt. di Ingegneria Informatica e delle Telecomunicazioni, Catania Univ., Italy

Volume

2

fYear

2002

fDate

2002

Firstpage

1187

Abstract

The paper presents a new low-complexity algorithm for silence suppression in adverse acoustic environments. The algorithm uses a single input parameter given to a simple matching block. The decision module adapts a series of thresholds by varying the estimated signal to noise ratio. A series of tests carried out using a large speech database confirm a 10% improvement in performance as compared with the AMR voice activity detector (VAD) option 1 adopted by the ETSI for 3^rd-generation mobile systems.

Keywords

3G mobile communication; acoustic noise; speech processing; 3^rd-generation mobile systems; 3G mobile systems; AMR voice activity detector; ETSI; adverse acoustic environments; decision module; input parameter; large speech database; low-complexity algorithm; low-complexity silence suppression algorithm; matching block; mobile radio communication; noisy environments; signal to noise ratio; silence suppression; Acoustic noise; Acoustic testing; Databases; Detectors; Mobile communication; Signal to noise ratio; Speech; System testing; Telecommunication standards; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on

Print_ISBN

0-7803-7503-3

Type

conf

DOI

10.1109/ICDSP.2002.1028305

Filename

1028305