Re: echo in the freq. domain (Dan Stowell )


Subject: Re: echo in the freq. domain
From:    Dan Stowell  <dan.stowell@xxxxxxxx>
Date:    Wed, 12 May 2010 23:02:02 +0100
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

Hi - You can do an echo (delay) effect in the frequency domain using convolution, exactly the same as you would for reverb - you would just use a different impulse response (a sparser one, typically, in the time domain). However, the sparsity means that you can typically implement it efficiently enough in the time domain, so there's not much point doing it frequency-domain. Why do you want to do it? Best Dan Danijel Domazet wrote: > Hi auditory, > I'd like to do a simple Echo effect in the frequency domain. Does anyone > remember any paper on the subject? There is a nice paper on freq domain > reverberation ("Frequency Domain Artificial Reverberation using Spectral > Magnitude Decay", Vickers E.), but couldn't find any on the echo.... > > Thanks, > > Danijel Domazet > CEO > LittleEndian.com -- Dan Stowell Centre for Digital Music Queen Mary, University of London Mile End Road, London E1 4NS http://www.elec.qmul.ac.uk/digitalmusic/people/dans.htm http://www.mcld.co.uk/


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