Hello forum,

I saw this video on Youtube and was inspired to try to replicate this effect in pd (skip to 2:16 for the good stuff).

The author had this to say:

Non-Geeks: This is me playing on some drums and pads fed through a computer. When I hit the drums they get sampled instantly and repeated really fast to make VSnares / Aphex type granulised rolls.

Geeks: The drum signal (SM57 sits on snare, 602 sits in kick) is fed through a granular synth which takes snapshots of the incoming signal if it exceeds a threshold level, samples its frequency, waveform and amplitude, then repeats those grains until it is triggered again. That granular sound is then mixed with the signal from the camera to get some natural drum sound.

Here's my attempt: liveglitch.zip

I tried to make things more interesting by adding an option to have a glissando effect as well as incorporate some randomness into the parameters, but I still can't keep to get it to sound as 'industrial lo-fi' as the author can. Any tips or improvements I could make?

I'd throw:

  [osc~ .125]
  [expr~ $f1*8000+9000]
  [phasor~]
  [samphold~]

on your chain right before you split your signal out for stereo, then I'd play around with the [expr~] coefficients and sync the lfo [osc~] speed to your tempo. This particular configuration will reduce sampling fidelity to as low as 1khz and as high as 17khz, over an 8 second cycle. That's a sound I like for lofi fun.

@sunji Hey that's pretty cool. What would you do for a bit crushed sound? Or something to make it really sharp and digital like in the original video?

if you're on linux you can use [plugin~ decimator] (i think thats what it is, im on my fone right now) to get bit reduction. you can also alter the fidelity of a subpatch with [switch~] and pass your signal through.

i think he's got a 2k sample buffer in the video that is being read on a loop. a [bonk~] is triggering the writes to the buffer. does my description make any sense?

@sunji > you can also alter the fidelity of a subpatch with [switch~] and pass your signal through.

Could you elaborate more on this? I tried routing everything through a simple subpatch with an [inlet~], [outlet~] and [block~] and tried a bunch of arguments based on '[block~]'s help file, but nothing sounded different. I think [inlet~] and [outlet~] compensate for any changes using [block~] or [switch~]

try sending your switch a [4096 1 0.015625(

@sunji said:

[4096 1 0.015625(

Ah very cool! Thanks!