Title :
Robust voice command in high ambient noise level
Author :
Suzuki, Yukio ; Kishi, Tomoyuki ; Sato, Shinichi ; Ando, Hiromi
Author_Institution :
OKI Electr. Ind. Co. Ltd., Tokyo, Japan
Abstract :
A robust voice command recognition system for environments with high ambient noise levels was developed. The influence of noise is very important because the commands are usually used in situations like hand-free voice dialing in a car during operation, system-assisted production lines in a factory, and in airplane cockpits. The equipment which was developed is able to recognize commands in a high level ambient noise environment in which the noise level may be as high as 120 dB. Furthermore, this high recognition rate is guaranteed even for modified data, such as bone-conduction voice commands
Keywords :
acoustic noise; speech recognition; airplane cockpits; ambient noise level; bone-conduction voice commands; hand-free voice dialing; recognition rate; robust voice command recognition system; system-assisted production lines; Algorithm design and analysis; Background noise; Cepstrum; Frequency; Linear predictive coding; Noise level; Noise robustness; Signal to noise ratio; Speech recognition; Working environment noise;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112423