I figured out a way to get QPAS to play the undertone series just like Mangrove using Cold Mac. Stereo undertone series!

AUDIO IN > QPAS
QPAS LP (STEREO) > AUDIO OUT
QPAS SP (MONO) > COLD MAC CREASE IN
COLD MAC CREASE OUT > QPAS FM IN

This works best with Q set between 9:00 and fully counter-clockwise. Past 9:00 things get chaotic. The cutoff frequency and the FM depth have a very large influence on the resulting timbre. The subdivisions can go all the way down to infrasound, but finding the right parameters is a bit tricky.

You can also patch use Cold Mac’s crossfader to offset the QPAS SP signal using the Survey knob before sending it to crease, which has a pretty big impact on timbre.

AUDIO IN > QPAS
QPAS LP (STEREO) > AUDIO OUT
QPAS SP (MONO) > COLD MAC OFFSET IN
COLD MAC LEFT OUT > COLD MAC CREASE IN
COLD MAC CREASE OUT > QPAS FM IN

Applying a small amount of slow modulation to Radiate Left / Right provides some nice subtle stereo movement.

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Wow, looks fun. I will sure try that. Thanks!
Btw what do you mean with

maybe you meant COLD MAC LEFT OUT?

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Yes! I’ll correct that!

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:musical_keyboard: :musical_note: Someone left Cold Mac out… in the rain…:notes:

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long overdue but finally got around to making this, and looking forward to making more with QPAS and other modules.

a longform no-talking exploration of QPAS, enjoy!

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Got mine the other day and I am loving it, it sounds so lush and with all the modulation options it becomes a very competent rhythmic tool. Here’s a very simple demo of it modulating a chord progression I made in Ableton using Wavetable and running it back into Live’s Echo.

It also works really well with the Lyra, because its drones are very rich in harmonics so you get these noisy textures coming in and out of the stereo field and makes a very live sounding instrument sound even more alive.

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Looking for advices on using wildcard inputs? Does anyone have cool ideas?

They’re designed to respond to just about anything. Feed them gates, triggers, noise, LFOs, sequencer CV/gate outputs, even try feeding some QPAS outputs back into QPAS, and just experiment until you find cool combinations that work for you.

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I tried and there are some things that I like. By asking for advice I am hoping to stumble upon something I didn’t try.

Have you tried feeding them external audio?

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well, kind of. I tried feeding it one of the harmonic oscillator outputs as well as feeding its own HP or SP outs. Sometimes gives nice distortion like sounds, and sometimes sounds meh :slight_smile:

If I remember right the wildcard inputs only react if the signal is hot enough to pass a certain threshold. I recall putting squarewaves into it and getting really nice, aliasing and frequency modulation like sounds.

Had a really enjoyable time with Radio Music > Erbe Verb > QPAS > Hyrlo this evening. The operant thing being: Mixing the LP, BP, and HP in stereo wasn’t something I had tried before, and if you haven’t tried it, I recommend it!

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Oh man, I need a stereo mixer. I have a mono one now and then I got a QPAS and am… wanting a stereo mixer. You dig the Hyrlo?

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I recommend the Intellijel Mixup, has mutes, and with the VCA on the qpas you can use the second pair of stereo in’s on the mixup quite effectively. Though the hyrlo looks nice and I have an OOTS, they have a high build quality.

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Stereo mixer roundup: https://doudoroff.com/mixers/

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Make Noise’s XOH is missing from your stereo mixer list.

Ha! Doh! Just fixed that.

i’ve owned a QPAS for about 5 days now, and what i’ve come to really enjoy about it is how it excels at sculpting feedback patches. here’s an example with QPAS + spring reverb (alongside a cold mac / three sisters feedback patch):

this patch was def inspired by the tilde fjaerlett. specifics are lost on me, as i recorded this a few days ago and did a few variations of this patch, but here’s the starting point:

  • spring out -> optomix (version 1) ch 1
  • optomix ch2 (normalled from ch 1) out -> QPAS left input
  • QPAS bp left output -> spring in

from here, i got interesting results self-patching other QPAS outputs into the radiate and !!¡¡ inputs, as well as adding in a very slowly clocked Wogglebug to help nudge the patch into different places.

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Gah, thanks for reminding me that I still want to get a spring reverb at some point.

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