The utility of directly processing sigma-delta encoded audio signals is discussed. The problems of overflow and rounding in such a system and the consequential noise build-up are investigated. An efficient and cost-effective method of implementing a second-order filter, given the higher sample rate, is presented. The problems of coefficient accuracy are also discussed.

Authors: Angus, James A.; Casey, N. M.
Affiliation: University of York, York, Great Britain
AES Convention: 102 (March 1997) Paper Number: 4445
Publication Date: March 1, 1997 Import into BibTeX
Subject: Signal Processing
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7334

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 aes14)   /pp9798/pp9703/4335.pdf

Start a discussion about this paper!