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Conference Paper

Real-Time Control of DSP Parametric Equalizers

Authors: Hanna, Chris

AES Conference: 13th International Conference: Computer-Controlled Sound Systems · Paper 13-041 · December 1994

Abstract

Network control brings new possibilities to user interaction with DSP devices. It is important to offer real-time control of filter shapes (Q, cutoff/center frequency, order) by changing filter coefficients in real time. Textbook solutions to DSP filter problems rarely consider such dynamic situations. This paper presents observations on implementing real-time control of DSP. It will explore the update rate (dQ/dt, df/dt, dA/dt) and granularity required to achieve perceptually smooth, apparently real-time control. Stability problems raised by interpolation algorithms are also discussed.

Details

Published in
AES Conference: 13th International Conference: Computer-Controlled Sound Systems
Paper number
13-041
Publication date
December 6, 1994
Session subject
Computer-Controlled Sound Systems
Affiliation
THAT Corporation, Marlborough, MA (See document for exact affiliation information.)
Type
Conference Paper