Perceptual audio coders use a nonlinear, Bark related frequency scale to analyze and quantize signals. However, harmonic signals reveal their harmonic structure on the linear frequency scale. This paper presents a solution to improve the modulation of the quantization noise when perceptual coders are coding harmonic signals. The technique can also be used for other purposes, namely, in multipitch identifications.

Author: Ferreira, A. J. S.
Affiliation: INESC, Porto, Portugal
AES Convention: 100 (May 1996) Paper Number: 4177
Publication Date: May 1, 1996 Import into BibTeX
Subject: Perceptual Coding
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7595

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes13)   /pp9496/pp9605/4105.pdf

Start a discussion about this paper!