Speech Enhancement Using Multi—pulse Excited Linear Prediction System
نویسنده
چکیده
The multi—pulse excited linear prediction (MPELP) system is proposed for speech enhancement. It is shown that for successful enhancement of speech the error—weighting filter should not be used in the MPELP system. A new method (the constrained forward—backward correlation prediction method) is proposed for accurate estimation of LP coefficients from noisy speech. This method guarantees the stability of the stimated all—pole filter which is an important prerequirement for the MPELP system. It is shown that the MPELP system can improve the SNR of 0 dB speech by as much as 5.4 dB.
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