TY - GEN
T1 - Fast implementation for non-linear time-scaling of stereo signals
AU - Ravelli, Emmanuel
AU - Sandler, Mark
AU - Bello, Juan P.
PY - 2005
Y1 - 2005
N2 - In this paper we present an improved implementation of Duxbury's adaptive phase-vocoder approach for audio time-stretching using non-linear time-scaling and temporal masked phase locking at transients [1], We show that the previous algorithm has some limitations, notably its slow implementation and its incapacity to deal with stereo signals. We propose solutions to this problems including: an improved transient detection, a much faster implementation using the LFFT for re-synthesis and a method for stretching stereo signals without artifacts. Finally, we provide some graphical results and quantitative measures to illustrate our improvements.
AB - In this paper we present an improved implementation of Duxbury's adaptive phase-vocoder approach for audio time-stretching using non-linear time-scaling and temporal masked phase locking at transients [1], We show that the previous algorithm has some limitations, notably its slow implementation and its incapacity to deal with stereo signals. We propose solutions to this problems including: an improved transient detection, a much faster implementation using the LFFT for re-synthesis and a method for stretching stereo signals without artifacts. Finally, we provide some graphical results and quantitative measures to illustrate our improvements.
UR - http://www.scopus.com/inward/record.url?scp=84871942886&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871942886&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84871942886
SN - 9788474023183
T3 - Proceedings of the International Conference on Digital Audio Effects, DAFx
SP - 182
EP - 185
BT - 8th International Conference on Digital Audio Effects, DAFx 2005 - Proceedings
T2 - 8th International Conference on Digital Audio Effects, DAFx 2005
Y2 - 20 September 2005 through 22 September 2005
ER -