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Convention Paper

Time and Pitch Scaling of Audio Signals

Authors: Roehrig, Chris J.

AES Convention 89 · Paper 2954 · September 1990

Abstract

An algorithm to time-scale audio signals in real-time based on pitch-shifting is presented. The pitch-shifter is based on the modified short-time Fourier transform (STFT) a la Griffin and Lim, and resampling in the frequency domain. While the magnitude of the modified STFT is specified in the problem, the short-time phase is determined by an error minimization criterion. The problem of efficiently computing this phase is discussed.

Details

Published in
AES Convention 89
AES Convention
89
Paper number
2954
Publication date
September 6, 1990
Session subject
Signal Processing
Affiliation
Audio Research Group, University of Waterloo, Ontario, Canada (See document for exact affiliation information.)
Type
Convention Paper