Enhancement of Reverberant Speech Using Lp
نویسندگان
چکیده
In this paper we propose a new method of processing speech degraded by reverberation. The method is based on analysis of short (2 ms) segments of data to enhance the regions in the speech signal having high Signal to Reverber-ant component Ratio (SRR). The short segment analysis shows that SRR is diierent in diierent segments of speech. The processing method involves identifying and manipulating the linear prediction residual in three diierent regions of the speech signal, namely, high SRR region, low SRR region and only reverberation component region. A weighting function is derived to modify the LP residual. The weighted residual samples are used to excite the time{varying LP all{ pole lter to obtain perceptually enhanced speech.
منابع مشابه
Enhancement of reverberant speech using excitation source information
This paper proposes a method for the enhancement of reverberant speech using the knowledge of the excitation source of speech production. The degradation level in the reverberant speech is measured in terms of Speechto-Reverberation component Ratio (SRR). From perception and processing point of view high SRR regions are important. Hence the proposed method identifies and enhances the speech in ...
متن کاملEnhancement of reverberant speech using LP residual
In this paper we propose a new method of processing speech degraded by reverberation. The method is based on analysis of short (2 ms) segments of data to enhance the regions in the speech signal having high Signal to Reverberant component Ratio (SRR). The short segment analysis shows that SRR is different in different segments of speech. The processing method involves identifying and manipulati...
متن کاملLinear prediction modulation filtering for speaker recognition of reverberant speech
This paper proposes a framework for spectral enhancement of reverberant speech based on inversion of the modulation transfer function. All-pole modeling of modulation spectra of clean and degraded speech are utilized to derive the linear prediction inverse modulation transfer function (LP-IMTF) solution as a low-order IIR filter in the modulation envelope domain. By considering spectral estimat...
متن کاملEnhancement of Reverberant Speech Using L
In this paper we propose a new method of processing speech degraded by reverb'eration. The method is based on analysis of short (2 ms) segments of data to enhance the regions in the speech :signal having high Signal to Reverberant component Ratio (SRR). The short segment analysis shows that SRR is different in different segments of speech. The processing method involves identifying and manipula...
متن کاملA one-microphone algorithm for reverberant speech enhancement
We present an algorithm for reverberant speech enhancement using one microphone. We first propose a novel pitch-based reverberation measure for estimating reverberation time (RT60) based on the distribution of relative time lags. This measure of pitch strength correlates with reverberation and decreases systematically as detrimental effects of reverberation on harmonic structure increase. Then ...
متن کامل