Modulated Filter Banks with Minimum Output Distortion in Presence of Subband Quantization

Karine Gosse, Tanja Karp, Pierre Duhamel, Alfred Mertins

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).

OriginalspracheEnglisch
TitelConference Record of The Thirtieth Asilomar Conference on Signals, Systems and Computers
Seitenumfang5
Herausgeber (Verlag)IEEE
Erscheinungsdatum01.01.1997
Seiten1305-1309
ISBN (Print)0-8186-7646-9
DOIs
PublikationsstatusVeröffentlicht - 01.01.1997
VeranstaltungProceedings of the 1996 30th Asilomar Conference on Signals, Systems & Computers  - Pacific Grove, USA / Vereinigte Staaten
Dauer: 03.11.199606.11.1996
Konferenznummer: 46513

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