Hello again,

I would like to have a reverb on a input stereo signal.

I need very simple reverb (easy on CPU) that have only one control over dry signal and wet signal - when 0 output is completely dry. When 1 output is completely wet.
I have used the pd reverb that come in the example but for some reason I have clicks when traveling between dry and wet.

any recommendations?

here is my pd reverb patch:

reverb-1.pd

I have some questions regarding it:

assuming my audio file is stereo. I need for each channel (left and right) to have a separate array, right? (array1R and array1L)
So I also need to have a reverb unit for each channel (as I did) ?
Thanks for clarifications!

@KMETE What libraries are [scale] and [reverb-echo] from? I thought the former might be from cyclone but the cyclone version complains about the number of args.

@jameslo the scale object is indeed cycleone library. the reverb is from the pd example (G08)

@KMETE Thanks. Here's what I see is wrong:

• I think you didn't mean to use that last argument in [scale], judging from the subpatch [pd dry wt] which wants values from 0 to 1

• [pd dry wt] is really a subpatch named "dry"; "wt" is ignored because there's a space preceding it

• Not sure how you are loading the abstraction [reverb-echo] without a path declaration. Is Pd complaining about it in the console window? Maybe you just copied it from the help folder to your local folder.

• Try using [line~] in [pd dry wt] to make the dry/wet mix ramp to the next value over 20 mS, I bet that gets rid of the clicks

• If you duplicate this example reverb, one for the left and one for the right, you have to make [pd reverb] an abstraction with local variable names (i.e. $0- prefixed) to distinguish between the left and right delay lines. Pd is complaining about that,

• To my ear, the example reverb outputs a stereo image with the source on the left, so to make it stereo you could take both outputs of [pd reverb] and swap outputs for the one on the right. But there is probably a more sophisticated way of making this kind of feedback delay network reverb accept stereo input.

Hope this helps.

@jameslo said:

I think you didn't mean to use that last argument in [scale], judging from the subpatch [pd dry wt] which wants values from 0 to 1

the last argument in the scale is the curve of output values. so the more close to 10 the more logarithmic shape it will have (spending more time in the numbers close to 0)

@jameslo said:

[pd dry wt] is really a subpatch named "dry"; "wt" is ignored because there's a space preceding it

ok, thanks. but the inside is still looking like this:

@jameslo said:

Not sure how you are loading the abstraction [reverb-echo] without a path declaration. Is Pd complaining about it in the console window? Maybe you just copied it from the help folder to your local folder.

I indeed copy it to my local folder

@jameslo said:

Try using [line~] in [pd dry wt] to make the dry/wet mix ramp to the next value over 20 mS, I bet that gets rid of the clicks

Like that?:

@KMETE Yes, like that. Did it help? (c'mon, you had to have tried it, no? )

edit: Oh wait, maybe the clicks are due to the left and right delay lines being all mixed up? they gotta be separated!

@jameslo said:

@KMETE Yes, like that. Did it help? (c'mon, you had to have tried it, no? )

Yes! works like a charm!