The paper describes a multistage decimation filter which consists of seven-cascaded comb filters and a 50-tap single-stage finite-impulse response filter. A novel, multirate comb filter structure is used to reduce the date path width. The coefficients of the FIR filter are optimally quanticized to canonical-signed-digit form to realize a multiplier-free (shift-and-add) implementation with a single accumulator and a 256Fs master clock.

Authors: Lin, Kun; Paulos, John
Affiliation: Crystal Semiconducter Corporation, Austin, TX
AES Convention: 98 (February 1995) Paper Number: 3989
Publication Date: February 1, 1995 Import into BibTeX
Subject: Audio Signal Processing
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7777

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