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Rule-based expressive modifications of tempo in polyphonic audio recordings
KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH.
KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH.ORCID-id: 0000-0003-2926-6518
2008 (Engelska)Ingår i: COMPUTER MUSIC MODELING AND RETRIEVAL: SENSE OF SOUNDS     / [ed] KronlandMartinet R; Ystad S; Jensen K, BERLIN: SPRINGER-VERLAG , 2008, Vol. 4969, s. 288-302Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This paper describes a few aspects of a system for expressive, rule-based modifications of audio recordings regarding tempo, dynamics and articulation. The input audio signal is first aligned with a score containing extra information on how to modify a performance. The signal is then transformed into the time-frequency domain. Each played tone is identified using partial tracking and the score information. Articulation and dynamics are changed by modifying the length and content of the partial tracks. The focus here is on the tempo modification which is done using a combination of time frequency techniques and phase reconstruction. Preliminary results indicate that the accuracy of the tempo modification is in average 8.2 ms when comparing Inter Onset Intervals in the resulting signal with the desired ones. Possible applications of such a system are in music pedagogy, basic perception research as well as interactive music systems.

Ort, förlag, år, upplaga, sidor
BERLIN: SPRINGER-VERLAG , 2008. Vol. 4969, s. 288-302
Serie
LECTURE NOTES IN COMPUTER SCIENCE, ISSN 0302-9743 ; 4969
Nyckelord [en]
automatic music performance, performance rules, analysis-synthesis, time scale modification, audio signal processing
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:kth:diva-25031ISI: 000258121900020Scopus ID: 2-s2.0-50349097096ISBN: 978-3-540-85034-2 (tryckt)OAI: oai:DiVA.org:kth-25031DiVA, id: diva2:355175
Konferens
4th International Symposium on Computer Music Modeling and Retrieval Copenhagen, DENMARK, AUG 27-31, 2007 Aalborg Univ; CNRS, Lab Mecan & Acoust; French Natl Res Agcy; Re New, Digital Arts Forum
Anmärkning
QC 20101006Tillgänglig från: 2010-10-06 Skapad: 2010-10-06 Senast uppdaterad: 2018-01-12Bibliografiskt granskad

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