2 possible paths to solving glitchy, unwanted notes when playing fast on EWI:

Bome Products
1

Greetings,
As mentioned in the title, I am trying to solve this problem I have of glitchy unwanted notes while playing fast on the EWI. I have the Robkoo R1 EWI which has so many good features but the octave keys are awful to me. The 2 solutions I can think of so far is"

  1. Create 36 unique fingerings with just 8 holes (which I’ve planned already) and assign MIDI Notes accordingly with Bome.However, here’s the problem that I need advice with. Some fingering combinations still send the same MIDI note message, which means I can’t isolate that fingering and change it to the desired note without affecting the other fingering. How can I kind of hack into my own EWI, does the EWI send any other CC messages that are unique and not repeated with other fingerings that allows me to assign a MIDI note to it? FYI ROBKOO won’t allow more than 20 custom fingerings.

  2. A second solution, if the above is impossible, is to try to filter those glitchy high-pitched notes as I’m playing in real-time so that I can use the octave keys without worrying about them when playing really fast arpeggios for example. How would I go about that?

Thanks in advance.

2

Hi and welcome to the Bome community!

Can you provide an example of this situation. Maybe I can advise.

What MIDI messages do the octave keys send? Note messages? Maybe we can convert these messages to CC to ensure notes do not sound. Do you have a copy of a user manual for this device?

Steve Caldwell
Bome Customer Care

Also available for paid consulting services: bome@sniz.biz
3

Hi Steve,

Sure, so it might be something like:

The fingerings x for closed hole and 0 for open hole.

x
x
x
0
x
x
x

and
x
x
x
0
0
x
will both send 48 as MIDI Note. So without the EWI manafacturer changing some settings I’m not sure I can hack into changing the Note.

4

Yes, you are probably right. The manufacturer probably should have coded it in binary based on the closed and opened holes. Then used a lookup on the values to determine the MIDI note number to send.

Steve Caldwell
Bome Customer Care

Also available for paid consulting services: bome@sniz.biz
5

Thanks, I’m also working with Robkoo to try and increase their custom fingering options.

The 2nd option I mentioned was to try and filter out unwanted notes that occur when using the octave keys. This is a very common problem, and unless you play with robotic precision it can happen quite easily.

Please see attached image. In this case I was playing Partita in A by Bach and you can see some higher notes occur when transitioning from one octave key to another. If there’s a way to programme MIDI to take out those unwanted notes, it would help a lot!

screenshot

6

I forgot to mention, take out those unwanted notes in real-time, not in post editing.

7

Hmm about the only thing we might be able to do is determine a valid octave range from a stream of notes and if it falls out of that range, disallow it. Would take some analysis and maybe occasionally, a note you want to play wouldn’t play. I’d have to think a bit on how the logic would work on selecting the desired range.

Steve Caldwell
Bome Customer Care

Also available for paid consulting services: bome@sniz.biz
8

True, I’ll have to do some more analysis of when these glitches occur. Another possibility is the nature of the glitch is always a very short duration note and up usually up 7+ half steps, maybe could filter that. I’ll do some more experimenting.