build a reverb effect by mod2?

dxl · Post by **dxl** » Sun Apr 21, 2002 12:48 pm

build a reverb effect by mod2?
is that possible?

subhuman · Post by **subhuman** » Sun Apr 21, 2002 3:26 pm

Yes, and it's already possible. Use effect insert modules.

castol · Post by **castol** » Mon Apr 22, 2002 9:10 am

hmm, <a href="http://www.harmony-central.com/Effects/ ... /">read</a href> and be enlightened.

dxl · Post by **dxl** » Mon Apr 22, 2002 2:21 pm

not enlightening me anything.
but thankz

anywebsite teaches us how to build a reverb with modulers?
not programing....

castol · Post by **castol** » Mon Apr 22, 2002 4:56 pm

<a href="http://www.cim.mcgill.ca/~clark/nordmod ... b">this</a href> is as close (i am fairly sure) as you'll find to what your asking for.

found via a search on http://www.google.com.

you should try

dxl · Post by **dxl** » Tue Apr 23, 2002 1:25 pm

kewl!
anyone made Mod2 reverb patches?

algorhythm · Post by **algorhythm** » Tue Apr 23, 2002 4:26 pm

no dxl - how about you make us one?

dxl · Post by **dxl** » Tue Apr 23, 2002 5:24 pm

i will try when i know how to make one!

castol · Post by **castol** » Sun Apr 28, 2002 4:14 pm

i built the bucket brigade delay (reverb) from that group of reverb tutorials...

heh, its pretty silly what the nord modular users go through to get a bit of a delay

. j/k.

still a neat idea, but the effect of 90 clocked s&h's with externalized fb (i could only do 80) can be replicated with the use of a single channel of a tempo delay and a decimator which are linked in modulation. so that when you turn up yer delay the signal is downsampled increasingly. well actually, i had trouble controlling the delay time freq input but it could be done i assume. you'd also want to limit the delay time to a very small range.

because those tutorials are based around the nm, they won't be taking advantage of our ability to have considederably longer delay times. anyhow, i think i'll still have a go at the other ones. though quite daunting most of the rest look!

oh, btw....defex made a mod1 patch called rezonar which could be explained as a reverb of sorts. it is based around fedback filtered short delays in tau

delays can function remarkably well by themselves as reverberants.

i rather like the effect, but its no where near what a good reverb will sound like.

found it the other day in a search through some mod1 patches.

best.

<font size=-1>[ This Message was edited by: castol on 2002-04-28 17:44 ]</font>

junklight · Post by **junklight** » Mon Apr 29, 2002 2:20 am

"its pretty silly..."

Aye - there is no memory in the Nord Modular to use for delays - you can do some great things with it though - the Mod2 could learn some lessons from it. I'm glad I've got both.

If you want to learn about the ins and outs of reverbs you could do worse than peruse the source code of freeverb (Haven't got a link off hand but do a search). Very nice sounding 'verb thats open source.

My feeling is that whilst you probably could build some sort of reverb in the Mod2 it wouldn't be that useable.

cheers

mark

castol · Post by **castol** » Mon Apr 29, 2002 4:33 am

hey junklight, thanks for the tip. that source code will come in real handy, looks really well documented (even for my non-programedness).

castol · Post by **castol** » Tue Apr 30, 2002 5:32 am

hmm, well...the two critical bits of that algorithm i have not the slightest idea to recreate.

our phaser is just a string of all pass filters, yes. hmm...

our comb filter is definetly not a comb filter in the sense of a reverbs comb filter...hmm.

anyone care to brighten the subject

junklight · Post by **junklight** » Wed May 01, 2002 2:23 am

I seem to remember (this is off the top of my head and may be totaly wrong) that you can make a comb filter with a delay of a very small numnber of samples and summing both the delayed signal and the original signal causing destructive interference.

mark

junklight · Post by **junklight** » Wed May 01, 2002 2:24 am

Oh - and allpass filters whilst sounding very boring change the phase of the signal which of course introduces different kinds of constructive and destructive interfernce into the signal chain....

mark

castol · Post by **castol** » Tue May 07, 2002 8:51 am

thank you for expressing some interest junklight.

i tried building a rather simple stereo reverb out of 8 mono delays, 4 phasers (think comb delays and all pass filters), externally fedback the 4 delay lines on each side with a low-pass filter in the loop , but while it could sort of sound reverberish....mostly no. plus its imposible to tweak any of the controls in tandem, outside of midi control...which i didn't try. but i imagine the coarse nature of cc's would make the control rather clumsy - as feedback, and delay time required very small adjustments (.001) to function somewhat decently.

i have decided to teach myself csound, so maybe i'll garner some more interest and understanding from that vast pool of resources and knowledge.

in the meantime....yes...stick with yer reverbs made by folks who know what they are doing

....but don't stop trying if that is what propells you.

who am i talking to anyway?

blah.

//c