Title :
Tracking partials for the sinusoidal modeling of polyphonic sounds
Author :
Lagrange, Mathieu ; Marchand, Sylvain ; Rault, Jean-Bernard
Author_Institution :
SCRIME - LaBRI, Bordeaux I Univ., Talence, France
Abstract :
The paper proposes to improve further the tracking of partials in a polyphonic context. Spectral characteristics of the controlling parameters (amplitude and frequency) are taken into account to ensure that these parameters evolve slowly with time. The resulting algorithm tracks closely-spaced sinusoids better and is able to avoid most of the spectral data belonging to noise. As a consequence, the proposed algorithm extracts a more meaningful sinusoidal representation from polyphonic recordings.
Keywords :
audio signal processing; music; spectral analysis; musical audio processing; partials tracking; polyphonic recordings; polyphonic sounds; sinusoidal modeling; spectral characteristics; Acoustic noise; Audio recording; Data mining; Frequency; Interpolation; Joining processes; Lagrangian functions; Research and development; Source separation; Telecommunication control;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1415688