Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Time-variant Orthogonal Matrix Feedback Delay Network Reverberator

Authors: Paranjpe, Shreyas

AES Convention 110 · Paper 5381 · May 2001

Abstract

We developed an artificial reverberation device based on a novel, time-variant orthogonal matrix feedback delay network topology. Our novel topology uses multiple, time-variant output taps for each delay line, and therefore simultaneously reduces the amount of delay memory required without introducing coloration, and increases the echo density. Furthermore, the system is guaranteed stable provided that certain constraints on the delay line lengths and tap weights are fulfilled. Our implementation on a 24-bit digital signal processor requires only 16384 words of delay line memory for a four channel input / four channel output reverb.

Details

Published in
AES Convention 110
AES Convention
110
Paper number
5381
Publication date
May 6, 2001
Session subject
Signal Processing for Audio
Affiliation
Parthus Technologies, San Jose, CA (See document for exact affiliation information.)
Type
Convention Paper