Modulated filter banks with minimum output distortion in presence of subband quantization

Karine Gosse, Tanja Karp, Pierre Duhamel, Alfred Mertins

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper presents modulated minimum mean squared error (MMSE) filter banks, designed for subband coding purposes. Uniform scalar quantizers, the synthesis prototype and an additional gain control factor per subband are optimized in a rate-distortion sense. The main advantage of the proposed solution is to keep the efficient modulated implementation of the synthesis filter bank, while reducing the reconstruction distortion introduced by quantization of the subband signals. It is shown that, in many circumstances, the resulting schemes are almost as efficient as plain MMSE filter banks (Wiener filters with optimized quantizers).

Original languageEnglish
Pages (from-to)1305-1309
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume2
StatePublished - 1997
EventProceedings of the 1996 30th Asilomar Conference on Signals, Systems & Computers. Part 2 (of 2) - Pacific Grove, CA, USA
Duration: Nov 3 1996Nov 6 1996

Fingerprint Dive into the research topics of 'Modulated filter banks with minimum output distortion in presence of subband quantization'. Together they form a unique fingerprint.

Cite this