Two new patches

OWL Patches
#1

I’ve added two basic patches written in Pure Data:

There is a GlitchyMonoLooper:
https://hoxtonowl.com/patch-library/patch/GlitchyMonoLooper/

This lets you record up to 3 seconds of audio, then play with end point and speed. It is quite noisey (when changing endpoint - this seems to be a problem with pure data and tabread~ that I haven’t figured out yet). However, you get some nice unpredictable behaviour from it.

The second patch is a straighforward MonoLooper. This just records and loops up to 3 seconds of audio.

I’m looking into “layering” loops, but suspect this needs more memory…

Anyway, please play about with them, any feedback much appreciated.

Adam

#2

Hi, I’ve been working on something similar. It’s published now:
https://hoxtonowl.com/patch-library/patch/Looper/

It’s more intended as a guitar effect. A crazy one :smiley:
You need an expression pedal to trigger it.

About layering loops, you dont need more memory. Just plug the output of [tabread~] into a mixer with the input signal. This way when you record the loop, you record on top of the old one.

#3

Sorry to repeat your work! That’s a great tip for layering! I will try and implement it now :slight_smile:

I will do a facebook post on the Rebel Tech page linking to all three loopers later on today (i just broke facebook on my computer by deleting certificates in keychain - oops! I thought macs were bullet proof in this respect!)

Adam

#4

I’ve ported a couple of things:

Gordon Pearce’s SimpleReverb
https://hoxtonowl.com/patch-library/patch/SimpleReverb/
(took about 10mins to get working!)

Juhana Sadeharju’s GVerb (aka GigaVerb)
https://hoxtonowl.com/patch-library/patch/GVerb/
This is a gigantic reverb that used to ship with Audacity

dr Petter’s SFXR
https://hoxtonowl.com/patch-library/patch/SFXR/
Hours of fun with instant game audio effects!
Two notes:

  1. the web audio version isn’t functional because we haven’t yet got a pushbutton. Working on it.
  2. to run well on the pedal it should be compiled with e.g. make LDSCRIPT=Source/ccmheap.ld. The downloadable sysex version will glitch. Working on this, too.
#5

GVerb is awesome! I’ve been using it for a couple of years. It’s great to have it on the OWL.

One suggestion. Due to the ADC’s noise, the size control sometimes makes a “glitch”. It’s subtle but it is there. With a little more smoothing has disappeared.
size = 0.9 * size + 0.1 * getParameterValue(PARAMETER_A)*GVerb::MAX_SIZE+1.0f;

size has to be declared on the class.

About point 2): you’re talking about the “pop” sounds right? Without polling values from the OWL it doesn’t pop.
By the way, using ccmheap.ld it doesn’t work for me. It makes a big noise at startup and then nothing. In fact I tried other patches with this script and they make a lot of noises.

#6

Good call, added the smoothing.

Yes I meant the audio drop outs. Not sure why ccmheap.ld is not working for you, though I’d messed up the command; updated.