=== vcp challenge #58: grains of wrath ===

you are challenged to make a patch in vcv rack to showcase creative use of modules, so other users may get inspired. you can also win eternal fame!

for this edition, the challenge is to make a patch with frequency domain’s grains of wrath

== rules ==

  • make a patch in vcv rack using the chosen module and upload your patch to patchstorage.com and/or in your reply to this thread
  • tag your upload with vcp-58
  • you are encouraged to only use free modules in the patch (but this is not strictly required)
  • make a video showcasing your patch and upload it to youtube (if possible)
  • add a link to your video as a comment to this post (these videos will be collected in a playlist)
  • give feedback on other participants’ patches

deadline: monday end of the day, wherever you are, february 8th (though late entries will still be added to the playlist)


just a note for everyone attempting this challenge. The grains of wrath can load up to 16 samples and take up to 16 live inputs for a total of 32 grain sources. each grain randomly chooses a source based on a weighted probability controlled by the Weight grid. If a source has a weight of 0, then its probability will be 0. If all the sources are at 0, then you won’t hear anything :slight_smile:


I don’t do much granular synthesis (although the sounds you get out of it can really be spectacular). I remember using AudioMulch way back in the late 90s, and that’s probably the last time I played around with grains.

I took a Squinky Labs Saws and threw 3 Grains of Wrath modules on it and tweaked them and I liked it! I might have to start using it more. Anyhow, here’s a quick patch called Holiday in Hades (sometimes you can hear the Robot Devil tuning his violin).


sounds cool! Don’t forget to have fun with the panning grid! :smiley:

+1 for Audiomulch. Automation was a pain at times but still a fun piece of software!

I actually had the panning set up to the LFO and then disconnected it to tweak something and forgot to connect it again. I blame old age.

Grains of Darkness:

Using Grains of Wrath to make some dark ambience. The GoW is the only sound source and is processed in several different ways to create the various textures.

The samples come from a the Galbanum Architecture Waveforms 2010 1 set of Serum wavetables (https://www.reddit.com/r/edmproduction/comments/2jhew1/1700_waveforms_for_serums_wavetable_download_link/)

I just loaded the folder but here’s the list of samples: image

VCP58 Grains of Wrath.vcv (83.8 KB)


Hi there, thanks for this challenges, as a vcv-newbie like me it is a perfect way of exploring new things. So here is my patch: vcp-58 | Patchstorage

In the first instance of GoW I used a drum-sample-pack I got for free somewhere, the second are a few melody and harmony samples and the last one is some lead sample. All instances are send through the instruo tanh and are heavily compressed. I sampled the output of the second GoW, reversed it and sequenced it to get some rhythm. Well, experimental, but interesting.

  • mo


I hope I'm allowed to ask some questions? And they're not only meant for this challenge but to get a better understanding of GoW.

After reading the manual, I have several questions about GoW:

1 About the voice weigthing: I can't get to grips with it. Whatever I do the voice weighting always picks the top eight voices. I've tried a couple of things, but I can never get the bottom eight voices to respond: what is the reason for this?

2 The V/Oct input doesn't seem to do anything? What is it supposed to do? The screenshot in the manual doesn't even have that input.

3 In the manual is stated that freeze and reverse can be either gated or triggered; is this selected with the push button inbetween the two inputs? And which is which?

4 What does the scaling button actually change?

Thnx for your time. Enjoy.

  1. There are actually 32 voices - the top 16 are samples, the bottom 16 are the live input. If there is no sample loaded for a voice (for the top 16), or there is no live input (for the bottom 16), the weighting pixel will be red, so changing the weighting of red voices in the grid will have no effect (since there is nothing there).

  2. V/oct allows controlling of the pitch of grains - like freeze and reverse, it is polyphonic - the first input controls the grain pitches of the 16 sample voices, the 2nd controls the grain pitches of the 16 live inputs

  3. The Freeze and Reverse inputs are polyphonic. Since polyphony is limited to 16 voices, it takes 2 inputs to control the freeze and reverse (since each voice can be frozen or reversed individually). The push button switches between gate mode (where a high signal freezes/reverses the voice) and trigger mode where each low to high trigger changes the freeze/reverse state.

  4. Scaling chooses between a linear weighting to an exponential weighting of the grain choosing probability. (its pretty subtle, especially with only a few grain voices)

Hope that helps

Thank you. A great help.

Here’s another patch to throw on the pile. With sincere apologies to both Bela Bartok and Bernard Herrmann, here’s some microtonal Pyscho-ish synth strings. I was working on something else (as usual) and had the clock set too fast, and it sorta went from there. Anyhow, here you go.


This patch has a number of things I’ve been working on (microtonal stuff, trying to dial in a hollow sawtooth sound, etc.) and I decided to crossfade the whole mix into Grains of Wrath and then back out. I’ll probably rework this in the future, but here’s the rough draft.

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I have tried using Grains of Wrath on several tracks none of which came out at all musical.

In the end I have broken several rules - I have used Substation which isn’t free - as an additional sound source. I also didn’t know how to pack all the samples which came from various places on my hard drives. I thought I would share it anyway. Based on a combination of woodland samples and samples from the Apollo 11 flight.

Listen on headphones if you can.

Apollinaire II

vcp58 Apollinaire II.vcv (146.8 KB)

SLIGHT EDIT: SubStation was a new purchase. I so wish I had seen Jakub Ciupinski’s excellent tutorial before I created the above. https://www. youtube.com/watch?v=LXI9UFKFqIc I didn’t want the tutorial video to show here so I just put a space in the URL.


My VCO “Substitute” is free, but it’s only the VCO section. It’s quite good, though, imao.

Hello there, This sounds beautiful, how can this not be musical, a nice relaxing ambient piece! Were the other attempts less musical then?

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No I meant that the non musical ones were where I attempted to use Grains of Wrath as the only sound source, which is why I introduced Substation for this one - therefore making more more musical;

That sounds fair enough, I like Grains of Wraith as a sound source, it’s all down to personal preference. Just got to feed it lead and pad sounds of synths, guitars and out comes mayhem!

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All I did here was a bit of a “soundscape” with some added speech synthesis to make it sound pretentious.

I made a small sequence, added a drone and put that all through the Grains of Wrath. I only modulated the grain size and pitch. I felt that was enough variation. I feel like I should have got this done more quickly but there you are. In terms of mixing stuff I used Bassmaster again but I really don’t know whether it did anything useful. I have this habit of starting to use a module with subtle effects on the sound that I can barely hear and then getting bored with it after I’ve convinced myself that it doesn’t do anything. The text is just something that came into my head when I was messing around with things.

What do you think @almostEric? Is this good enough for your module?

edit: oops, forgot to upload the patch:

vcp-58-upload.vcv (102.8 KB)

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I think it sounds great :slight_smile:

1 Like