Hi all,

I'm trying to build a patch that takes an input signal and passes it through 2 effects in series, with a crossfade wet/dry at each stage.

[input ]
| \
| \
| \
| [effect 1]
| \
[xfade]
|\
| \
| \
| [effect 2]
| \
[xfade]
|
|
[output]

However, these two effects need to be interchangeable — that is, there are 8 possible effects that can be used, and you should be able to choose between them. Also, you are not allowed to select the same effect twice.

This has proved to be a bit of a brain teaser for me, and my throw~ and catch~ objects are doing things that I don't want them to do. Is there a simple way to achieve what I'm trying to do?

Thanks in advance,

-chmod

Yes, that's the idea — I'm just not sure how to implement it.

Just think about it I think I made one its kind of hard to explain

Fair enough, I think I'm starting on a working solution right now actually. It's not pretty, and I wish I had a bit more understanding on $0 arguments.

With time

This, unfortunately, is not the easiest thing in the world. One way is to have a [catch~] for each effect. At the end of each effect, have a router (like [demux~]) send the signal to the appropriate [throw~]. However, the only way to do this without introducing delays is to use [block~ 1], which will drive up your cpu. And you might still have to deal with a few samples of delay, depending on creation order and routing. The other option is to enter the wonderful world of dynamic patching, which is more complicated but worth learning at some point. You can force the order that way, eliminating the need for [block~ 1].

you won't to use a cross fader or hold/cut

will when my dig pd file comes out you will find out how

I managed to get it working using a catch~ for each effect like you said, Maelstorm.

I have message boxes that allow the user to select each effect, but there is a click when I switch effects. Would the correct way to get rid of this be to use a block~ object? If so, how would I do this?

A simpler way would be to place a very short short envelope on your audio-path that quickly goes to 0, then do the switch and ramp back up to 1. 5 ms at 44.1 means 220 samples, that will be smooth enough.

good point. will try that, thanks