First impressions

MY DMNO arrived yesterday so only had a short time with it so far - but I am loving it! Another really high quality instrument from the UDO team and so far haven’t run into any major bugs​:crossed_fingers:(only minor ones!)

I’ve previously owned the Super 6 + Gemini, but the Dmno does feel the most feature complete (at least for my preferences). Yes its missing MPE + Sequencer which will come later, but otherwise theres so much to play with already which is great. Even things like the USB Audio interface so i can plug the synth straight into my phone for recording are super useful (although I seem to be getting audio crackles when recording here so may need some guidance or a bug to fix - see clips below).

Sharing a couple of quick clips:

Here’s a straightforward video just exploring putting a saw osc (DMNO 2) through the unison modes and a hi resonant filter. The filters sounds sooo good!

Here’s the main thing I wanted to do with this synth:

4 Resonant BP filters in stereo :drooling_face:making weird frog sounds​:frog:
Got a sustain pedal and an expression pedal controlling filter cutoff below the synth.

And now a few bugs to report: :ant:

Here’s a clip of a Nild Frahm inspired arp. Annoyingly there’s a crackle sound that happens occasionally when recording through the usb audio interface to my phone (Google Pixel 8 Pro). Dont believe it is triggered by a wire being touched / loose

Another shorter clip showing the crackling sound again (still happening on v1.5 firmware)

Also after updating to v1.5 this morning the screen shows v1.05? Assume this is just a display error as was on v1.1 when first turned on.

  • Switching between Domino’s when in voice allocation menu cuts hold of domino that was playing
    • IE if I want to switch the voice type of a dmno from solo - unison it cuts out the sound of the dmno i change the voice type of.
  • Level / Vca Knobs in mixer when turned to 0 dont silence the synth - currently the Env plays knob upwards into audible range even when the level knob is set to 0.
    • I think this would be better as a mix knob so that you can turn off one of the dmnos without stopping it playing an arp etc.
  • Arp turns off when switching Play Modes.
    • IE if I build a fun patch in solo mode which is playing an arp and then want to layer the other dmno alongisde this - i switch to split mode and the first dmno stops playing :sleepy_face:
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I cant see any reference to this “Env Keytracking” on the synth - TBH not even sure exactly what that means…

You can select Note as a mod source so can use key tracking to any of the modulation destinations - so you could then send that to env decay for example

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Thank you for looking into it! Yeah, I’m imagining modulating the ENV 1 Decay by Note Number might be the closest to keytracking for now - maybe this was something in the technical specification copy that was mostly copied from the Gemini’s and got missed. I had the assumption that ENV 1 keytracking would basically divide all envelope stage latencies by 2 ^ (note number / 12), cutting them in half with each octave up, so that if used to modulate pitch in looping mode, it would preserve FM ratios. But for my interests the DMNO does not lack FM operators, even with one fewer than assumed.

PS thank you very much for your 4x band pass demo - I am honestly mostly getting this synth due to the filter configurability and my obsession with formants, and your video shows me that this is definitely working as I had hoped it would!

Is the OSC 2 as a mod source already working, in a way that it can be used for audio rate filter cutoff modulation?

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All good - glad to hear you enjoyed it - planning on sharing a few more vids as well.

Yeah so there’s the on panel control to modulate the filter cutoff with Osc2; but what I’ve only just worked out is that Osc 2 is in the mod matrix too, so you can do AM modulation of all the mod matrix parameters too! Can really get in depth with sound design on the synth, very modular!

I’ll keep flagging bugs in this thread unless we want another dedicated bugs thread. @udo-audio

I’m having some issues with the folders on the DMNO. The folders on the device dont match what is in the latest manual linked on the UDO site (1.0).

Focusing on the performances - The manual states that the folder should be called performances.

However the device ships with the folder called performances_a (similar to Super Gemini). if you change the folder name to performances the DMNO doesnt read the folder and it all shows up blank. Luckily renaming back to performances_a brings back all the stored data; think the manual just needs an update.

What I’m also seeing which is annoying is that the “user folders” IE i1-p1 don’t show up when you look at the synth on your computer.

The performances_a folder in factory settings only contains subfolders from a1 - h1; however I was still able to save performances in folder i. I believe the synth has created the folder on the device, but it is not visible when you view the synth on a computer. I’ve tried creating folders i1-p1 inside performances_a then trying to resave my performances in folder i1, and then also creating another folder in the root called performances_b and moving i1-p1 to there and saving the performances again; neither approach meant I could see my performances on my PC.

Luckily I’ve managed to back up all the initial factory settings folders - then overwrite some of the factory performances with my performances and then backed them up on my computer and restored the factory presets.

The writing of the manual and the firmware development took place in tandem; however, as the print-ready files had to be submitted some time before the latest firmware versions were completed, there were a few minor changes.

The folder name ‘performances_a’ is correct. The patch file extension is now ‘ud4’, while the performance file extension is ‘xd4’.

The file structure still follows the same pattern as that of the Super series. Bank folders ‘a2’-‘h2’ correspond to banks ‘i’-‘p’.

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Please download and install the latest firmware version.

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Thanks for the replies!

Have looked at the performance folders now and yes a2 was created correctly and visible on the drive - I just missed that.

The manual does mention “Open the desired bank folder (‘a’ to ‘p’).” though which would suggest folders would go to i1 instead of a2. Probs worth correcting that in the manual.

When I’m mentioning the manual + the screenshot is taken from the manual linked on the website which is currently 1.0. Hopefully its relatively simple to just make the corrections and upload a new version of the manual.

Appreciate the on paper manual may be slightly out of date (thanks for including a corrections sheet) but the manual linked on the website should be up to date.

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Hey I’ve downloaded the latest firmware and still getting these occasional crackle issues.

Vid 1 - there’s a pop sound at the beginning and a crackle at the end of the video https://drive.google.com/file/d/1ToL2Qtqu1XcxvpgIQoVwf5yBpDvSvndP/view?usp=drivesdk

Vid 2 - crackle in the middle of the vid https://drive.google.com/file/d/1U9Ja3fiHWME5byHMMWNx8iA56_hEPzrq/view?usp=drivesdk

I don’t doubt that you are experiencing these issues. It does, however, sound like you are clipping the input of the device you are recording this into. If I recall, you mentioned that you are capturing the audio with your cell phone (google pixel 8?). Perhaps try lowering the level going into your phone to see if that mitigates the pops and crackles. Just a thought.

Listening with headphones could clear this out, if still there it’s the DMNO, if not, it’s the cellphone.

Imo…

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Thanks for the suggestions:

  • it seems the DMNO USB Audio interface has an auto level / is not impacted by the master volume control
    • See this video where the master is nearly at 0 and I’m still getting crackles or clipping
  • Even if I turn down the osc mix and vca levels down I still get some crackles
  • + I dont have a way of “attenuating” the sound being sent over USB
  • I only seem to get this behaviour when plugging from the usb out into the phone.
    • I dont get any crackles when taking the audio outs and wiring them into a phone via my interfaces over USB (Zoom L6 + Rode AI-Micro)
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I know this thread is first impressions but maybe worth renaming as bug reporting as I have a lot to report haha (or make another thread and push all my reports there). Also Feature requests, or create another thread for that as well.

I am actually really enjoying the synth and will share some videos of some Jams shortly! Just keen to make sure any bugs are able to be sorted as soon as possible.

So onto another bug modulating Env 1 decay in the mod matrix seems to only be active when the gate is high or a note is held.
I’m starting with a low env 1 decay and modulating to a higher decay time using an expression pedal (env set to long release too). When the note is let go (either manually or halfway through the arp note) the decay seems to drop to its non-modulated amount AKA a very fast drop.
I would expect that the env 1 decay modulation should stay high and continue regardless of whether a note is currently being played - therefore allowing notes to go to the release stage correctly.
Also experienced this when trying to modulate the decay using an LFO when the synth is in arp mode - as the modulation is only active for half of the note it sounds like the envelope is being choked halfway through the note.

See this video

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Have you had a chance to try the USB out into another device?

Ah good shout - just tried plugging usb direct into my windows pc into ableton and seems to record pretty flawlessly.

Could well just be the phone clips the audio then. Shame that direct to phone workflow might not work for me but hey. I’ve heard iPhones / Apple have better audio drivers so think it may well work correctly for iPhones. If anyone has any extra tips for avoiding clipping on phone recording, would be very welcome!

I also have tried recording on the voice notes app on my phone (recorder), but I still get that issue.

Are you using an Android phone then?

I personally really like the Dolby On app for recording on my Pixel 9 Pro if you’d want to try that as well (or haven’t already)

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Thanks just given that a go but still getting issues - yeah I’m on Google Pixel 8 Pro

OK time to share some jams again.

1st a Split with 2 fairly complex Wavetable + Cross mod oscs wobbling around. Didnt intentionally build this patch to have a kind of call and response behaviour but just ended up that way with the different LFO + ENV modulations.
Question - does the LFO Phase do anything when the DMNO is not in Binaural mode? Would be nice to be able to move through the starting position of the LFO wave (like the Phase control operates for one of the channels in Binaural mode)

Next I’ve got another split of a Lofi style pad and a bass sound.
I’ve been enjoying using the noisy sine waveform on LFO 1 as a sort of wow and flutter type LFO both for the pitch and filter.
Would be ace if we could allocate how many voices there are for each DMNO - IE 7/1 + 6/2 instead of always 4/4.

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I wish it was possible to change to split mode without stopping the voices as well.

On the same note, it would open up a lot of play possibilities if the voices held, arpeggiated or in the release stage on one DMNO didn’t stop when selecting the other DMNO. Sometimes I want to use the entire length of the keybed for each DMNO separately. IE. Play some stuff with DMNO1 and then switch to DMNO2 for a timbre change without the notes still releasing from DMNO1 harshly being cut off.

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I see that patch 1.9 was just released. Maybe some of the above issues are addressed now? UDO DMNO | Support & Downloads