how to trigger monophonic synth with MIDI ?

[emmanuel63]

Hello,

I am working on a basic synth project with a Teensy 3.2 + AudioShield.
I cannot figure out how to correctly trigger monophonic notes using MIDI.
Let's say I have triggered a C, then a D without releasing the C. When I release the D, it mutes both the D and the C. I must find a code that re-triggered the C in this case.

How do you deal with this ?

I tried to play with MIDI modes : omni, poly, mono... with no success.

Thanks for any help,
Emmanuel

 

[PaulStoffregen]

How do you deal with this ?

I would add a variable that remembers which note number was most recently turned on.

At the beginning of the code which decides to turn on a new note, I'd check that variable and first send a note-off message, then transmit the new note-on message.

 

[RABB17]

Check out the tutorials by Notes and Volts. He includes code and goes over basic mono synth functionality. https://www.notesandvolts.com/2018/11/teensy-synth-part-9-midi-input.html Many of the examples included with teensyduino will also give you coded examples of how this is handled.

 

[emmanuel63]

Thank you Paul, thank you Rabb17,

I figure out now how I will deal with it.

Special thanks to you Paul for developing such an amazing circuit.

Emmanuel