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Real-time Accompaniment Using Lyrics-Matching Query-by-Humming (QBH)

Title Real-time Accompaniment Using Lyrics-Matching Query-by-Humming (QBH)
Publication Type Master Thesis
Year of Publication 2010
Authors Papiotis, P.
preprint/postprint document static/media/Papiotis-Panos-Master-Thesis-2010.pdf
Abstract We present an automatic accompaniment system for the singing voice, which allows the user to begin singing from any point within the piece he/she desires. The system is based on the Dynamic Time Warping (DTW) algorithm, which is used as both a similarity measure as well as an alignment tool between the live performance and the reference. The user’s position within the piece is initially determined with a variation of current Query by humming/singing methods, based on three sets of acoustic features; pitch trajectory, RMS energy envelope and MFCCs. After locating the user, the system adapts the tempo of the accompaniment utilizing a known on-line DTW method. The system is implemented in MATLAB and Java, while audio playback is handled using Max/MSP.