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Journal Article

Classification of Time–Frequency Regions in Stereo Audio

Authors: Härmä, Aki

Journal of the Audio Engineering Society · Volume 59 · Issue 10 · pp. 707–720 · October 2011

Abstract

Algorithms that manipulate, remix, or transform stereo audio signals to suit the format of sound reproduction systems make assumptions about the way in which the stereo signal was originally mixed. However, these algorithms usually do not test if the assumptions are valid. In order to determine the type of mixing used in a stereo mix, this research compares two blind classification algorithms that divide individual time–frequency regions into six classes of mixing types. The results show that mixing strategies vary with the musical genre, and the classification algorithm can reduce the instability and center disintegration when upmixing a stereo signal to a multichannel format.

Details

Publication
Journal of the Audio Engineering Society
Volume
59
Issue
10
Pages
707–720
Publication date
October 6, 2011
Affiliation
Philips Research, Eindhoven, The Netherlands (See document for exact affiliation information.)
Type
Journal Article