Latching a Key Down event

Cantabile
1

Searched for this, but I’m thinking it is more likely that I’ve got the wrong search terms.

Here’s what I’m trying to do.

I have a riser (“The Riser” plug in) that I’m syncing to tempo.I it mapped to the bottom key on the keyboard, and that note needs to be held for 2 or 4 beats before the Riser finishes and fades.

Here’s what I’d like to happen.

  1. I press and release the key and the key “latches” so that there is no key off event to The Riser.
  2. I want to be able to hit the same key again (or a different one) to unlatch the key event. For example, if I accidentally hit the key, I want to be able to have a key off event to stop the riser.

I suppose I could create a MIDI file and use a binding to the media player to play it, but this would be a set it and forget it - I couldn’t abort the key event if I had this setup.

Is there another solution that I’m missing?

Thanks to the big brain in advance for any help

2

Could you use midi filters to map the note on event to a CC, and then use midi filter to latch it? And do the same for the note off?

1 Like
3

I also suspect that putting the note-off into a timed binding might hold it. Just off the top of my head… haven’t tested it.

4

Here’s an easy way to toggle a note on and off - in this case, playing the C1 key toggles between sending a note-on (velocity=127) to the synth, and sending a note-off (implemented as a note-on with velocity=0).

Toggle note
Toggle note1217×117 6.72 KB

– Jimbo

2 Likes
5

Hi Pat,

I’d use the sticky note filter on the MIDI route that had the key mapping included. It’s built for this kind of thing IMO. e.g Low A on piano latches and unlatches. You have to route your other notes on a different route.

SnapShot 4587
SnapShot 4587921×410 26.9 KB

Dave

2 Likes
6

Thanks everyone. Got it (and bookmarked it :slight_smile: ).

7

With the exception of the range filter, this worked perfectly for what I wanted. The range doesn’t matter in this application as that one key is the only thing routed to the plugin anyhow (it’s a noise riser), so that issue is moot. However, I’ll eventually want to get it to work… and I will… :slight_smile: There are some transpositions going on alongside the range mapping, and that’s probably the underlying issue.

1 Like