Wavelet Based Pitch Extraction in the MPEG Compressed Domain

Anantharaman, B and Ramakrishnan, KR and Srinivasan, SH (2001) Wavelet Based Pitch Extraction in the MPEG Compressed Domain. In: 2001 IEEE International Conference on Multimedia and Expo, ICME 2001, 22-25 August, Tokyo,Japan, pp. 189-192.

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Abstract

A technique to extract pitch information directly from audio files encoded using MPEG/Audio coding standard is described. The technique works in the compressed domain and requires the MPEG/Audio file to be decoded only partially for extracting the encoded subband samples. The paper first proposes a method for extracting wavelet coefficients from the subband samples. The pitch interval is then estimated from the time interval between two successive maxima of the wavelet coefficients. It is shown that the computational complexity for compressed domain pitch extraction is less than 7% of the computations required for decoding the subband samples and finding the pitch.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	13 Feb 2006
Last Modified:	19 Sep 2010 04:23
URI:	http://eprints.iisc.ac.in/id/eprint/5323

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