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Convention Paper

A Numerical Method to Modify the NBR 10303 Filter Frequency Response

Authors: Noceti Filho, Sidnei; Sette Silva, Homero; Dalcastagne, Andre Luis

AES Convention 115 · Paper 5926 · October 2003

Abstract

This paper describes the design of three filters used in the filtering of pink noise which are described in the new Brazilian standard proposed to replace the current NBR 10303. The NBR 10303 filter does not permit the correct test of subwoofers because its low cut-off frequency is too high and for this reason we changed its component values in order to obtain three new filters with lower low cut-off frequencies. The design of these filters was carried out through a numerical method based on a modification of the NBR 10303 filter frequency response magnitude. The final component values were specified according to commercial values.

Details

Published in
AES Convention 115
AES Convention
115
Paper number
5926
Publication date
October 6, 2003
Session subject
Signal Processing
Affiliation
LINSE - Circuits and Signal Processing Laboratory, Department of Electrical Engineering, Federal University of Santa Catarina, Florian´opolis, SC, Brazil ; Eletrˆonica Selenium S.A., Nova Santa Rita, RS, Brazil (See document for exact affiliation information.)
Type
Convention Paper