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Convention Paper

Detection of Sinusoids Using Statistical Goodness-of-Fit Test

Authors: Patwardhan, Pushkar P.; Shenoy, Ravi R.

AES Convention 134 · Paper 8854 · May 2013

Abstract

Detection of tonal components from magnitude spectrum is an important initial step in several speech and audio processing applications. In this paper we present an approach for detecting sinusoidal components from the magnitude spectrum using “goodness-of-fit” test. The key idea is to test the null-hypothesis that the region of spectrum under observation is drawn from the magnitude spectrum of an ideal windowed-sinusoid. This hypothesis is tested with a chi-square “goodness-of-fit” test. The outcome of this hypothesis test is a decision about the presence of sinusoid in the observed region of magnitude spectrum. We have evaluated the performance of the proposed approach using synthetically generated samples containing steady and modulated harmonics in clean and noisy conditions.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8854
Publication date
May 6, 2013
Session subject
Audio Processing and Semantics
Affiliation
Nokia India Pvt. Ltd., Bangalore, India (See document for exact affiliation information.)
Type
Convention Paper