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This paper considers the problem of quantifying the reverberation perception on speech signals. We investigate several combinations of three distinct reverberation-related features (namely, the reverberation time (RT), room spectral variance (RSV), and direct-to-reverberant energy ratio (DRR)), which can be extracted directly from the associated room impulse response. Particular attention is also...
This paper describes computationally efficient implementations for the ITU-T G.729 speech codec. Focus is given to the adaptive codebook search, more specifically in the open-loop stage, which first estimates the pitch period of the speech frame being coded. Different strategies are discussed to achieve an excellent compromise between computational complexity and signal quality. The result is an accelerated...
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