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Convention Paper

Using Phase Information to Improve the Reconstruction Accuracy in Sinusoidal Modeling

Authors: Hollomey, Clara; Moore, David; Knox, Don; Brimijoin, W. Owen; Whitmer, William

AES Convention 140 · Paper 9492 · May 2016

Abstract

Sinusoidal modeling is one of the most common techniques for general purpose audio synthesis and analysis. Owing to the ever increasing amount of available computational resources, nowadays practically all types of sounds can be constructed up to a certain degree of perceptual accuracy. However, the method is computationally expensive and can for some cases, particularly for transient signals, still exceed the available computational resources. In this work methods derived from the realm of machine learning are exploited to provide a simple and efficient means to estimate the achievable reconstruction quality. The peculiarities of common classes of musical instruments are discussed and finally, the existing metrics are extended by information on the signal's phase propagation to allow for more accurate estimations.

Details

Published in
AES Convention 140
AES Convention
140
Paper number
9492
Publication date
May 6, 2016
Session subject
Audio Signal Processing: Coding, Encoding, and Perception
Affiliation
Glasgow Caledonian University, Glasgow, Scotland, UK; MRC/CSO Institute of Hearing Research, Glasgow, Scotland, UK (See document for exact affiliation information.)
Type
Convention Paper