AES E-Library

Perceptual Audio Coding and the Choice of an Analysis/Synthesis Filter Bank and Psychoacoustic Model

The success of a perceptual audio coder depends strongly on the joint efficiency of three of its main building blocks: the analysis/synthesis filter bank, the psychoacoustic model and the quantizer. This paper focuses on the combined choice of an appropriate filter bank and an accurate psychoacoustic model. A few statistical results concerning stationarity and harmonicity are used to discuss the objective and subjective coding gain, the necessity to address multiresolution, and the pertinence of including aspects of pitch and timbre perception in perceptual modeling. Specific solutions are proposed.

Author: Ferreira, Anibal J. S.
Affiliation: FEUP/INESC, Porto, Portugal
AES Convention:104 (May 1998) Paper Number:4671 Import into BibTeX
Subject:Perceptual Coding

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes14)   /pp9798/pp9805/4561.pdf

Start a discussion about this paper!