To process audio signals prior to DSD and LPCM delivery, an audio data format is required that possesses a resolution substantially greater than the final release form. A number of strategies are presented capable of enhanced resolution. Techniques using the step-back algorithm are extended to include a multi-level quantizer but where the amplitude range is finite. An earlier scheme based upon multilevel SDM and multi-stage loss-less differential coding is enhanced by incorporating more aggressive noise shaping implemented by means of parametric noise shaping previously used for binary SDM.

Author: Hawksford, Malcolm J.
Affiliation: University of Essex, Colchester, Essex, UK
AES Convention: 116 (May 2004) Paper Number: 6148
Publication Date: May 1, 2004 Import into BibTeX
Session Subject: Audio Recording and Reproduction; High-Resolution Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=12708

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 116Papers)   /116/6148.pdf

Start a discussion about this paper!