Author Topic: MI clouds as vocoder / loud static while using line in  (Read 5313 times)


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MI clouds as vocoder / loud static while using line in
« on: February 21, 2022, 02:02:24 PM »
Hi there!
Finally I found time to play around with my Gecho v2 - great fun! My first experiments were just reading some occult texts into the MI Clouds patch (channel 34), using Gecho as kind of a vocoder. (I started making (atmospheric to noisy) music for RPG and tabletop sessions during the first lockdown and never stopped :) ) And I made some crashing/wobbling/swooshing FX, but please don't ask how as I couldn't reproduce them ...

It's building some texture for this (unfinished) track:
And here are some outtakes:

Do you folks have any ideas which other voice/vocoder style channels and effects I should try next?

Maybe I should open up another thread for my second issue, but here we go: When using line in (with different cables and different powering, via USB hub as well as via powerbank) I always get quite a loud, present static noise. A quick example (with a volca FM):
Is there anything I can do about this? Is something misconfigured?

Thanks a lot and all the best!


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Re: MI clouds as vocoder / loud static while using line in
« Reply #1 on: February 22, 2022, 11:33:48 AM »
Hi and welcome!

Thank you for sharing your work, Nyarlathotep is surely pleased too :D

In the recent update there are another two variations of Clouds (#342, #343) but I think the first one is a bit broken, it stretches the sound too much (some of its controls don't react, I guess). Still creates interesting textures after a while so I decided to leave it there.

You may also like the new polyphonic reverb, #322, which creates effect closer to a vocoder (as opposed to the monophonic Clouds). There is no true vocoder in Gecho - maybe there will be some day, however its requirements on the CPU are presumably higher, so we'll see. The basic soundscapes are playable by midi too, and if you turn down the background sample (i.e. water or forest) then only the incoming signal will be filtered by resonant filters, which creates something remotely similar to vocoder too. I see you tried granular already, perhaps it's harder to use that way, will probably not work well with speech but with monotonous singing, it should be possible to turin the voice into chords as well.

About the noise - can we rule out a ground loop? not sure if you meant "different powering" as trying various sources, or that every machine has separate and isolated power. From my experience, Volcas may have faint inherent buzzing, it depends on the power too. Maybe the auto-gain function in Gecho is amplifying it too much when nothing else plays (sounds like the buzzing is buried under the signal later?) Try to disable it, here is a searchable guide for all those options: (check the "input levels" paragraph that explains how to switch it off).

Hope this helps! :)


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Re: MI clouds as vocoder / loud static while using line in
« Reply #2 on: February 22, 2022, 02:52:39 PM »
Hi Mario,
thanks a lot for the suggestions, I'll give them a try this weekend :)

As for that static: I don't think it's a ground loop, I tried

* Volca with batteries as well as wth two different power adapters
* Gecho with power from active USB hub as well as from a power bank
* Gecho Line Output to DAW via audio interface as well as routed through mixer/circuit tracks
* Gecho direct output to Headphones

I'll see what disabling the auto gain will do about it :)

Cheers and fhtagn!