| Paper: | AE-P4.3 | ||
| Session: | Applications to Music I | ||
| Time: | Thursday, May 20, 15:30 - 17:30 | ||
| Presentation: | Poster | ||
| Topic: | Audio and Electroacoustics: Applications to Music | ||
| Title: | TIME-SCALE MODIFICATION OF MUSIC USING A SYNCHRONIZED SUBBAND/TIME-DOMAIN APPROACH | ||
| Authors: | David Dorran; Dublin Institute of Technology | ||
| Robert Lawlor; National University of Ireland | |||
| Abstract: | Time-domain audio time-scaling algorithms are efficient in comparison to their frequency-domain counterparts, but they rely upon the existence of a quasi-periodic signal to produce a high quality output. This requirement makes them unsuitable for direct application to complex multi-pitched signals such as polyphonic music. However, it has been shown that applying time-domain algorithms on a subband basis can resolve this issue. Existing subband/time-domain approaches result in a reverberant/phasy artifact being introduced into the output due to poor synchronization between time-scaled subbands. This paper presents a number of synchronization schemes that greatly reduce the amount of reverberation/phasiness introduced into the time-scaled output by existing subband/time-domain approaches. | ||
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