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midi transmit

Posted: Nov 5th, '16, 11:19
by mex
I just tried the Nava with midi connected to it, i am having a bit of trouble playing it from my external gear, but working on it.

Now i couldnt find any information but my oscilloscope tells me, the Nava only sends timing Midi information out, is that right??

I can see my midi RX channel up to the Atmel pretty fine when playing an midi keyboard connected to it, but there is only a steady pulse triggered out, is that true, or can the nava also transmit its instrument information to another drum machine?

Just confirmed , its the BPM information, it must be the midi clock signals, cause it changes when i change the BPM.

So I cannot play anything with the nava, but just start other sequencers or patterns with it, right?

And i couldnt or only occasionally play the drums from external keyboard, is that a firmware issue, i see that the notes are there, maybe a midichannel bug, or i have to test further, anyone tried yet to control the nava from a roland tr 707?

thanks, cheers.

Re: midi transmit

Posted: Nov 7th, '16, 15:18
by stairre
I'd like to add to this... I found that triggering the sounds from external MIDI literally only worked once per instrument. I was able to trigger each sound ONE TIME via an external device and never again until my Nava was powered off and back on... at which point each sound could be triggered again, but still one time each. Firmware issue or build issue?? Maybe not receiving note off messages via MIDI? :?:

Re: midi transmit

Posted: Nov 7th, '16, 18:33
by BastienL
I didn't had trouble sequencing the Nava with a Beatstep Pro nor Ableton Live except the OH trigger problem that has been mentioned here viewtopic.php?f=25&t=1014

mex, I guess that if you can see the MIDI clock on the Atmega, the MIDI signal is coming in, and if you can sync it to other gear, no problem around the opto-isolator, 6N138.
Are you trying to send MIDI notes to the Nava or you're looking to send notes from the Nava to another drum machine? I don't think that it's possible to play other gear with the Nava MIDI out, except monophonic synth with the external instrument function. You can also sequence drum with it, but you'll be able to play only one MIDI note by step, so not really useful. The Yocto was not able to do it to, I hope a future update fix that!

stairre, did you update to v1.019 yet? cause it should fix something about MIDI ON/OFF messages
v1.019:
-Fixed Middle Tom low volume
-Now respond to Midi note ON velocity 0 message as a Midi note OFF message
hope this helps!

Re: midi transmit

Posted: Nov 7th, '16, 19:28
by Rowan
stairre wrote:I'd like to add to this... I found that triggering the sounds from external MIDI literally only worked once per instrument. I was able to trigger each sound ONE TIME via an external device and never again until my Nava was powered off and back on... at which point each sound could be triggered again, but still one time each. Firmware issue or build issue?? Maybe not receiving note off messages via MIDI? :?:
Yes, this a bug that I identified a while ago, it was fixed in 1.019.

See this tread for more details.

viewtopic.php?f=25&t=899

Re: midi transmit

Posted: Nov 8th, '16, 08:05
by mex
yeah, thanks I checked that i have installed firmware 1.018
so i will try to get a never version onto my nava and then try again.

What I wanted to test is play the nava from an external keyboard via midi, and what i hoped to do is maybe play the exact patterns from the nava via midi out on my tr707 to have exactly the same beats.


But as you said this might not be possible, surely this is only a software issue, but one would need the code in open source to work with it ;)

Guess i finish my yocot as well and afterward try to build my very own firmware with another processor, so i got more control over it, but that might take some time :)

Re: midi transmit

Posted: Nov 9th, '16, 12:28
by 4teenth
mex wrote:yeah, thanks I checked that i have installed firmware 1.018
so i will try to get a never version onto my nava and then try again.

What I wanted to test is play the nava from an external keyboard via midi, and what i hoped to do is maybe play the exact patterns from the nava via midi out on my tr707 to have exactly the same beats.


But as you said this might not be possible, surely this is only a software issue, but one would need the code in open source to work with it ;)

Guess i finish my yocot as well and afterward try to build my very own firmware with another processor, so i got more control over it, but that might take some time :)
Being able to use the x0x sequencer of the Nava to trigger other drums would be amazing :)

Re: midi transmit

Posted: Nov 9th, '16, 17:08
by stairre
Ahh Rowan. Thanks for the heads up. I was so used to checking the "Hardware" section, I spaced and didn't even think to check the "Software" section. :roll:

Re: midi transmit

Posted: Dec 12th, '23, 02:42
by farare
I hope the development team midi transmit is aware of these problems actively working on a solution. It would be greatly appreciated if there could be a prompt update or patch to address these lag concerns.
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