Hi,

I wanted to say thanks to everyone on this site who has answered other people's questions and also to those who asked the questions; I've benefited tremendously from both and have been able to get started with puredata patching.

I wanted to share this quick video of a reverb patch I made. It adds reverb to either an audio file or a line in. I can hook up my electric guitar via iRig and then do some fun reverbs or load up a wav file and then apply effects.

The reverb is just cyclone/allpass~ but, by having this goal in mind I've had to learn about reading files, writing to arrays, delays, monitoring signals, etc. There are a couple of improvements I want to make and there are lots of ideas about how I can tweak things or add new inputs that will modify the signal.

(40 second video on instagram)

Thanks again!

Reverberation is one of my favorite subjects. Allpass filters with internal delay have been the basic building blocks of digital reverbs since the 60ties. The way they skew the phase of the dry signal adds a spectral smear similar to what a room does. I like to stack and nest and stack them and then cross feed between 2 channels for some cheap but decent sounding room reverb. Takes some fine tuning though...

Your own sounds surprisingly good (albeit old school) for just an allpass filter with delay. I wonder if there is any secret voodoo to cyclone's allpass implementaion I don't know about...

You should try hooking up more than one and tune them differently, also experimenting with how much bleeds into the next vs dry feed and then do a mix of all - there are endless combos to explore

You can do allpass filters in vanilla quite cheaply btw ->vap~.pd

Could be optimized to take creation arguments for initial delay and gain. Or you could change the [delread~] to [delread4~] and have signal rate modulation of the delay time (for oozy 80ties chorussy verb effect).

(Would like to know if there is any difference in sound between cyclones external and my vanilla abstraction....)

Edited to fix certain convention flaws and typos in the patch + elaboration

bocanegra, thank you for the feedback! Im about to head into the woods for a weekend hike but once I get back home I’m gonna dig into all the knowledge you just shared. Appreciate it.