Title :
An adaptive wavelet: a time octave representation derived from Capon´s filters
Author :
Martin, N. ; Mars, J. ; Martin, J.
Author_Institution :
CEPHAG-ENSIEG, St. Martin d´´Heres, France
Abstract :
A time-octave representation derived from Capon´s filters is proposed. A Capon estimator which provides time-frequency images adapted for a post-treatment is linked with an optimal resolution for the analyzed signal, and a time-octave representation is adapted to acoustic interpretation. After presenting the method and showing the link with wavelet transforms, the authors discuss some academic examples and analyze real impulse responses of concert halls
Keywords :
acoustic signal processing; filtering and prediction theory; time-frequency analysis; wavelet transforms; Capon estimator; Capon´s filters; acoustic interpretation; adaptive wavelet; concert halls; impulse responses; time octave representation; time-frequency images; wavelet transforms; Adaptive filters; Band pass filters; Bandwidth; Fourier transforms; Signal analysis; Signal resolution; Spectrogram; Time frequency analysis; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1992., Proceedings of the IEEE-SP International Symposium
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0805-0
DOI :
10.1109/TFTSA.1992.274180
