Title :
A real-time implementation of constrained estimate-maximize algorithm for single-microphone speech enhancement
Author_Institution :
Dept. of Electron. Eng., Nat. I-Lan Inst. of Agric. & Technol., Taiwan
fDate :
5/1/1998 12:00:00 AM
Abstract :
A real-time frequency-domain implementation of constrained estimate-maximize (EM) algorithm is presented to work on a single-microphone system. Our experiments based on a moderate speech database indicate that the performance of the proposed implementation is comparable with an off-line approach subject to a matching constraint. A DSP chip operated above 33 MHz is competent to carry out 6 iterations of the proposed algorithm with a delay time of 16 ms
Keywords :
digital signal processing chips; frequency-domain synthesis; microphones; speech enhancement; 16 ms; DSP chip; IIR filter; constrained estimate-maximize algorithm; delay time; experiments; matching constraint; performance; real-time frequency-domain implementation; single-microphone system; speech database; speech enhancement; Agricultural engineering; Agriculture; Autocorrelation; Bandwidth; Digital signal processing chips; IIR filters; Real time systems; Speech enhancement; Speech processing; Stability;
Journal_Title :
Consumer Electronics, IEEE Transactions on
