Performance of Time-Delay Estimation in the Presence of Room Reverberation - Speech and Audio Processing, IEEE Transactions on
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چکیده
as a new input data, the summation in (22) can be achieved by using the DIF fast DCT algorithm [6]. It is noted that the multiplication of 2 cos(-) to g (2 j + 1) in (23) depends on the indexes of polyphase filters. Hence, according to (18) and (19), we can merge the factors 2 cos( w) into the corresponding coefficients of polyphase filters, as Fig. 2 shows. Then, we can save those y multiplications in the odd-index recursive formula (22) of the h t DIT process. Therefore, by merging all possible constant factors with the polyphase filter coefficients, we can eliminate
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Performance of time-delay estimation in the presence of room reverberation
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