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Convention Paper

Automatic Digital Audio Processing-ADAP

Authors: Paul, James

AES Convention 58 · Paper 1266 · November 1977

Abstract

Predictive deconvolution is a digital signal decorrelation technique for reducing the adverse effects of addictive and convolutional noise on audio signals. This procedure makes use of a Wiener predictor to estimate the correlated noise components in an audio signal and to subtract these components from that signal. The resulting signal is then shaped to a desired spectrum. An adaptive predictor further enhances this process by reducing undesired noise effects which are only short-term stationary. A real time 150th order adaptive predictive deconvolver, the Automatic Digital Audio Processor (ADAP), has been developed and is being used successfully in a variety of digital audio processing applications. Several examples of noise cancellation on audio recordings using the ADAP will be presented.

Details

Published in
AES Convention 58
AES Convention
58
Paper number
1266
Publication date
November 6, 1977
Affiliation
Electronics Research Center, Rockwell International, Anaheim, CA (See document for exact affiliation information.)
Type
Convention Paper