Title :
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
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 3rd-generation mobile systems.
Keywords :
3G mobile communication; acoustic noise; speech processing; 3rd-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;
Conference_Titel :
Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on
Print_ISBN :
0-7803-7503-3
DOI :
10.1109/ICDSP.2002.1028305
