Opens in a new tab

AES E-Library

← Back to search

Convention Paper

A Novel Automatic Noise Removal Technique for Audio and Speech Signals

Authors: E.V., Harinarayanan; Sinha, Deepen; Saeed, Shamail; Ferreira, Anibal

AES Convention 123 · Paper 7170 · October 2007

Abstract

This paper introduces new ideas on wideband stationary/non-stationary noise removal for audio signals. Current noise reduction techniques have generally proven to be effective, yet these typically exhibit certain undesirable characteristics. Distortion and/or alteration of the audio characteristics of primary audio sound is a common problem. Also user intervention in identifying the noise profile is sometimes necessary. The proposed technique is centered on the classical Kalman filtering technique for noise removal but uses a novel architecture whereby advanced signal processing techniques are used to identify and preserve the richness of the audio spectrum. The paper also includes conceptual and derivative results on parameter estimation, a description of multi parameter Signal Activity Detector (SAD) and our new found improved results.

Details

Published in
AES Convention 123
AES Convention
123
Paper number
7170
Publication date
October 6, 2007
Session subject
Signal Processing
Affiliation
ATC Labs; University of Porto/ATC Labs (See document for exact affiliation information.)
Type
Convention Paper