A novel method of producing artificial reverberation in the frequency domain, using spectral magnitude decay, is presented. The method involves scaling and decaying the magnitude response of the short-time Fourier transform, based on the desired room level and decay time as functions of frequency. Unlike time domain methods such as feedback delay networks, the current method requires less memory and provides independent control of the reverb energy and decay time in each frequency bin. Compared to convolution reverbs, the current approach offers flexible parametric control over the decay spectra and a computational cost that is independent of the decay time.

Authors: Krishnan, Praveen Gobichettipalayam; Sadanandam, Ravirala Narayana Karthik; Vickers, Earl; Wu, Jian-Lung (Larry)
Affiliations: Stanford Center for Computer Research in Music and Acoustics (CCRMA); The Sound Guy, Inc.; University of Missouri(See document for exact affiliation information.)
AES Convention: 121 (October 2006) Paper Number: 6926
Publication Date: October 1, 2006
Subject: Signal Processing

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