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Energy Decay Relief (EDR)

The energy decay relief (EDR) generalizes the EDC to multiple frequency bands:

$\displaystyle \hbox{EDR}(t_n,f_k) \mathrel{\stackrel{\mathrm{\Delta}}{=}}\sum_{m=n}^M \left\vert H(m,k)\right\vert^2
$

where $ H(m,k)$ denotes bin $ k$ of the short-time Fourier transform (STFT) at time-frame $ m$ , and $ M$ is the number of frames.


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Download Reverb.pdf
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``Artificial Reverberation and Spatialization'', by Julius O. Smith III, (From Lecture Overheads, Music 420).
Copyright © 2014-03-24 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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