SynthMaker

Reverb Algorithms

Archive · 2006 3 old posts

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

BasherT ·

Can anyone point me to the best place to find reverb algorithms either on-line or in print form?

I have been searching for days but I guess people keep good algorithms close to their chests!

Thanks in advance

BasherT

cAPSLOCK ·

You can look here:

"Freeverb" port...

http://www.musicdsp.org

But you are right. Great verb algs are more closely guarded than the 'Mona Lisa'.

cAPS

oddson ·

Almost everything mentions the comb in parallel followed by allpass in series and that's the basis of the freeverb too. Add a little pre-delay and you're in business with a reverb that sounds much like everyone else's. A metallic sound is said to be present but adding some other filtering in there somewhere could help and it would give your 'verb it's own flavour. (The metallic sound was very pronounced in early versions of the S|M port of freeverb due a bug that affected the allpass - but I think that's been resolved.)

http://www.ramsete.com/aurora/SAW/RoomSim.html

http://www.harmony-central.com/Effects/Articles/Reverb/

Another approach is feedback delay networks... looks interesting.

http://ccrma.stanford.edu/~jos/cfdn/Feedback_Delay_Networks.html

Whatever you try, watch out for denormals.

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