The design of psychoacoustically optimal noise-shaping filters for requantization in nonoversampling digital audio applications is examined. : The object is to minimize the total perceived output noise power. For this purpose, a new perceptual frequency-weighting function is introduced which provides closer matching to the ear's measured sensitivity at high frequencies than do existing functions. Corresponding filter designs are investigated. In addition, the importance of digital-to-analog-converter linearity is discussed with regard to realizing the potential audible benefits of noise shaping.

Author: Wannamaker, Robert A.
Affiliation: Audio Research Group, University of Waterloo, Waterloo, Ont., Canada
JAES Volume 40 Issue 7/8 pp. 611-620; July 1992
Publication Date: July 1, 1992 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7039

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 aes5)   /jrnl8997/1992/8442.pdf

Start a discussion about this paper!