DocumentCode :
2802485
Title :
A study of a local-features-aware model for the problem of phase reconstruction from the magnitude spectrogram
Author :
Nouvel, Bertrand
Author_Institution :
Japanese French Lab. for Inf., Nat. Inst. of Inf., Tokyo, Japan
fYear :
2010
fDate :
14-19 March 2010
Firstpage :
4026
Lastpage :
4029
Abstract :
This paper introduces a new algorithm for phase reconstruction from a modified magnitude spectrogram. Conventional methods are based on specific optimization process and classical overlap-add procedure. By referring to previous works, it is observed that use of local patterns may also provide good reconstructions. This leads to a reconstruction technique based on iterative inference of local patterns. The resulting method is suitable for incremental and real-time processing. It may be used directly, or as initial-guess to an optimization algorithm. The paper explores variants of models based local patterns. The results of these variants are compared.
Keywords :
optimisation; signal reconstruction; signal representation; local features aware model; magnitude spectrogram; optimization; overlap add process; phase reconstruction; Fourier transforms; Image reconstruction; Inference algorithms; Informatics; Iterative algorithms; Laboratories; Optimization methods; Spectrogram; Spectroscopy; Time frequency analysis; Cellular automata; Fourier spectroscopy; Phase reconstruction;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
ISSN :
1520-6149
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
Type :
conf
DOI :
10.1109/ICASSP.2010.5495756
Filename :
5495756
Link To Document :
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