The low-delay filterbank for audio coding is presented. The low delay allows a reduction in length of pre-echoes generated by quantization errors. The structure provides perfect reconstruction and a system delay that can be pre-specified independent of the filter length. A robust algorithm for the design of such filter banks is developed. In an explained example for audio coding, the length of the pre-echo is reduced to about one third for a filterbank with 128 equally spaced bands when compared to known filter structures.

Author: Schuller, Gerald
Affiliation: Institut fur Theoretische Nachrichtentechnik und Informationstechnik, University of Hannover, Hannover, Germany
AES Convention: 99 (October 1995) Paper Number: 4088
Publication Date: October 1, 1995 Import into BibTeX
Subject: Low Bit-Rate Audio: Technologies
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7678

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/pp9510/4022.pdf

Start a discussion about this paper!