Title :
Evaluation of microphone arrays for enhancing noisy and reverberant speech for coding
Author :
Li, Zhao ; Hoffman, Michael W.
Author_Institution :
Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA
fDate :
1/1/1999 12:00:00 AM
Abstract :
A robustly constrained minimum variance adaptive array algorithm for general noise suppression and subsequent speech coding is applied in realistic room environments. The results indicate that the robust algorithm is suitable for enhancing speech for subsequent coding. Results also show that the array processing gains are transparent to a CELP coder but not necessarily to an LPC-10 coder
Keywords :
acoustic transducer arrays; adaptive signal processing; architectural acoustics; array signal processing; linear predictive coding; microphones; reverberation; speech coding; speech enhancement; speech intelligibility; CELP coder; LPC-10 coder; array processing gains; constrained minimum variance adaptive array algorithm; intelligibility gains; microphone arrays; noise suppression; noisy speech; reverberant speech; reverberation; robust algorithm; room environments; speech coding; speech enhancement; Adaptive arrays; Array signal processing; Microphone arrays; Noise reduction; Noise robustness; Speech analysis; Speech coding; Speech enhancement; Speech processing; Working environment noise;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
