Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

Noise Reduction for Speech Recognition and Speaker Verification in Mobile Telephony

Vijay Raman, Jayant M. Naik

NYNEX Science and Technology, Inc., White Plains, NY, USA

Noise classification and reduction is used in this work to improve speech recognition and speaker verification performance for utterances received over the mobile network. Automatic noise classification is achieved with high accuracy in conjunction with spectral subtraction methods. The results audibly improve signal-to-noise ratio and significantly improve recognizer performance in low SNR situations as well as poorly modeled environments. The process is fully automatic, from implementation considerations.

Full Paper

Bibliographic reference.  Raman, Vijay / Naik, Jayant M. (1994): "Noise reduction for speech recognition and speaker verification in mobile telephony", In ICSLP-1994, 1839-1842.