Volca beats with Leap Motion

[rblok]

Hi Folks,
im looking to control my beats with leap-motion using Geco Midi.
Unfortunalley Geco only sends out midi-CC-messages.

So im lookin for a chance to trigger a sound with a cc message instead sending midi-note (sending 36, 38 and so on didnt work).

I already had a look to midi-patchpay which only converts channels and
midipipe which confused me a lot.

Alternavilly i need a way to convert incoming cc event from leap to midi-note for volca.

Anybody with suggestions?

Thx in advance.
Sebastian

[OpAmp]

Hi,
There is no way to trigger a sound using a CC msg on the Volca Beats.

What do you mean by this:

sending midi-note (sending 36, 38 and so on didnt work)

MIDI Note on/off messages on note numbers 36, 38 and so on should be ok...

Anyway, you will need to convert in SW the CC messages to Note On/Off messages, which is not that straightforward. CC messages tend to generate a continuous stream of events while you require a Note On/Off per part. It all depends what exactly is transmitted by the Geco app.

Otherwise, look for a leap motion app which allows triggering notes?

Bye.

[rblok]

ive read in the forums that somebody triggers by sending #36 for kick and so on. But no explanation if he uses cc-messages.

I just gave bome's a try. Looks good. But now ive to figure out whats the trigger to get a sound. Something like B0 00 vv in hex,
as seen here
http://www.bome.com/forums/viewtopic.php?f=3&t=5052

And i really have no idea whats that official midi chart from korg wanna tells to me ;/

What you mean with?

MIDI Note on/off messages on note numbers 36, 38 and so on should be ok...

My plan was midi note on, #36 midi, note off. But no idea how to write this in hex.

Otherwise, look for a leap motion app which allows triggering notes?

Theres no one. Just gave Aeromidi and Geco a try, Geco seems far the best.

[OpAmp]

Hi,

The official MIDI implementation for Volca Beats is here:
http://www.korg.com/uploads/Support/USA ... hart_E.pdf

It tells you that you can trigger sounds with MIDI note on/off messages. The velocity can be anything, because it would be ignored (at first sight). Note 36 triggers the kick (See notes *2 on the chart), and so on.

Note 36 on : 0x9n 0x24 0x7F
* replace n by your used midi channel on the Volca Beats - pay attention n = 0 corresponds to midi channel 1 and so on
* 0x24 is the hex note number for 36 - use the windows calculator or something to convert decimals to hex or vice versa
* 0x7F is the velocity, in this case 127, full speed - but it should not matter according to the chart, but avoid using 0)

Note 36 off: 0x8n 0x24 0x40

Bye.

[rblok]

Moin OpAmp,
i already checked the implentation chart, but didnt get it.
But this one is exactly what im lookin for! Many many thanks.
In my case getting Kick on Channel 10 would be: 0x99 0x24 0x7F?

ive just arrived at work, so it will take ages (+10 hours) to give it a try.
Will post after that.

Thanks.

[OpAmp]

Hello,

Yes, that's it. Remember to set your midi channel to 10 then as well on the Volca Beats.

Have fun!

[rblok]

Yes Sir!
it works. But again is leap to fast to make a beat.
Can get sounds out of, but not exakt enough ;(

For anybody who wants to try:
Ive used Leap-Motion-Controller with Geco-Midi and Bomes Midi Translator.

Special thanks to OpAmp for giving me right direction

[OpAmp]

Hi,

Good! But as I posted earlier, MIDI CC is quite different in nature than MIDI Note On/Off.
If you can send MIDI CC events for different controllers using the leap motion and the Bome application
allows it, you may try to implement a Schmitt trigger equivalent in the translations.

E.g. per CC controller, you assign another part (like kick, snare, ...) When the CC value of a particular controller goes
higher than 64, you send once the corresponding MIDI Note On event.
As soon as that CC value drops again below 64, you send once the corresponding MIDI Note Off event. And so on...

Just an idea...

Ciao.

[rblok]

Yep, was thinking the same way. Main prob at the moment is getting left (kick) and right (hats) hand coordineated to get some rythm