Our proposed sub-band analysis synchronous overlap-and-add (SASOLA) algorithm for time-scale modification of audio and speech signal applications considers sub-band analysis and applies the principle of synchronous overlap-and-add (SOLA) technique. In SOLA, the best alignment point between two successive frames in the overlapping region may not always be ideal due to non-stationarity in broadband audio signals. SASOLA algorithm overcomes the problem by first dividing the broadband signal into smaller sub-bands before applying overlap-and-add.
Authors:
Lin, Amerson H. J.; Tan, Roland K. C.
Affiliations:
Raffles Institution, Singapore ; Nanyang Technological University, Singapore(See document for exact affiliation information.)
AES Convention:
104 (May 1998)
Paper Number:
4644
Publication Date:
May 1, 1998
Subject:
Signal Processing
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