Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Sinusoidal extraction using an efficient implementation of a multi-resolution FFT

 
: Dressler, K.

:
Fulltext (PDF; )

McGill University, Schulich School of Music, Centre for Interdisciplinary Research in Music Media and Technology -CIRMMT-:
9th International Conference on Digital Audio Effects, DAFX 2006. Proceedings : Montréal, Québec, Canada, September 18-20, 2006
Montreal: McGill University, 2006
ISBN: 0-7717-062705
pp.247-252
International Conference on Digital Audio Effects (DAFX) <9, 2006, Montréal>
English
Conference Paper, Electronic Publication
Fraunhofer IDMT ()

Abstract
This paper provides a detailed description of the spectral analysis front-end of a melody extraction algorithm. Our particular approach aims at extracting the sinusoidal components from the audio signal. It includes a novel technique for the efficient computation of STFT spectra in different time-frequency resolutions. Furthermore, we exploit the application of local sinusoidality criteria, in order to detect stable sinusoids in individual FFT frames. The evaluation results show that a multi resolution analysis improves the sinusoidal extraction in polyphonic audio.

: http://publica.fraunhofer.de/documents/N-67994.html