Sample not triggered if MIDI overlaps

[Dan Korneff]

@Christoph-Hart @d-healey Are there any documents that explain how the Timer works?
I've been looking at some scripts on the forum, but can't quite wrap my head around it.
I'd like to experiment with using the noteOn to trigger a noteOff command at a timed interval (maybe 40ms) to see if it stops the issue I'm having.

Here's what I've been tinkering with, but it's just not working:

const var storeNoteNumber = -1;

inline function AutoNoteOff()
{

    Synth.startTimer(40);
};

function onNoteOn()
{
    storeNoteNumber = Message.getNoteNumber();
    
    AutoNoteOff();
}
function onNoteOff()
{
    if(Message.getNoteNumber() == storeNoteNumber)
    {
        Synth.stopTimer();
        storeNoteNumber = -1;
    }
}
function onController()
{
    
}
function onTimer()
{
    
    if(storeNoteNumber != -1)
    {
        Synth.noteOff(storeNoteNumber);
	storeNoteNumber = -1;
    }
    else
    {
        Synth.stopTimer();
    }
}

function onControl(number, value)
{
    
}

[Christoph Hart]

1. You can‘t change a const var defined number. Use reg instead.
2. the startTimer argument is in seconds - this is highly inconsistent with the UI timers which are controlled in milliseconds, but I can‘t change it for backwards compatibility reasons. Use 0.04.

[Dan Korneff]

@Christoph-Hart

Synth.noteOff(storeNoteNumber);

This line is giving me an error.
Illegal operation in audio thread: String creation

[d.healey]

@dustbro said in Sample not triggered if MIDI overlaps:

This line is giving me an error.
Illegal operation in audio thread: String creation

That error message usual means you have a typo in a variable name

[Christoph Hart]

Not sure what went wrong here (probably something trivial), but use the event ID obtained by Message.getEventId() and the Synth.noteOffByEventId() method which is far more reliable.

[Christoph Hart]

BTW, a hint about the issue would be just adding Console.print(Message.getNoteNumber()); into the onNoteOn callback to see whether the second overlapping MIDI event reaches the scripting engine or if the problem lies before this (either the DAW itself or the way how HISE processes and prepares these messages).

[Dan Korneff]

@Christoph-Hart @d-healey Illegal operation in audio thread is being caused by the timer interval.
When Synth.startTimer(); is set to anything less than 1, I get the error.

[Dan Korneff]

@Christoph-Hart said in Sample not triggered if MIDI overlaps:

Console.print(Message.getNoteNumber());

hmm,.... that sounds way too logical. :grinning_cat_face_with_smiling_eyes:
Great idea! the overlapping midi note doesn't make it to the scripting engine. :(

[Christoph Hart]

And you can confirm that this is not a problem with other plugins?

Can you test what happens if you overlap notes with different MIDI channels?

[Dan Korneff]

@Christoph-Hart This is for a drum sampler. I can confirm that overlapping notes do trigger samples in SSD, Superior Drummer, Addictive drums, and Groove Agent.

[Dan Korneff]

@Christoph-Hart said in Sample not triggered if MIDI overlaps:

Can you test what happens if you overlap notes with different MIDI channels?

Ok... changing the midi channel for an overlapped note will trigger the sampler.

[Dan Korneff]

so what does this mean??

[Christoph Hart]

HISE processes incoming MIDI messages and creates the event IDs, I suspect there is something fishy going on in this logic.

So just to make sure we use the same conditions:

• HISE 2.0.0 (the app, not compiled plugins). Also is this behaviour new (=> is it not occurring with HISE 1.6.0 or earlier?)
• any DAW / OS
• happens with the minimal example here:

HiseSnippet 743.3oc6W0saSCCE1osFXhsNPBw04E.oF13m6V+eah0QUSY.WMYbNq0hD6PhSgdKOY7HvixdC.6jrkDsntlKXrIHWkym8I4yemexIiCDTHLTDfL1X5Re.YrI1dIWNu2bBiiNrOxnIdDITBAlIPcW5SBCAGjgQ880.Faz.Eec9dcItDNExfPnSDLJbDyiIyPG29MLW2gDGXJyK2t2s8gTAumvUDo3ScbKjOg9YxL3Xhda0vHi6MvgIEA1RhDBQFM5JbVZOW7Udx9OgEx9jKnMrP1pGTB7Pgqilw56Q8lybcFew4NDgLviyTg5IpvSviXNrKwyTiGEufYlG40CiZqhdV4oWqRomUIzCkicMRXmhDBmHWhrHyzgizEXhhQpC4RfGxjKyGt9qR2GiGyjz4ky2ZkvWUf5OMeSC9agGb1Y.UlQ1F3ge3lMR2LgJODay3PbEYLQdZrs46IK.y8ANDnEUqUTT9y0snzesKJeKUpd8SCH7PeQXgGrM3wlJ3ZEIC7cgvv.3KSzQ4738DjfRW578FpNjk5iMQFEDmtzwSDwkEROpu1wj7MGJV0ja+kzonw+6TTEo8Z56Zjiuamv26i6bPe6IocHhu2b.eA3J7gho4iDbg+bAmQymCLAjArYyff7ruziTGoT8wkdQAKJjA2GnjkWAMYyWE4HPQs7vGnNwY16zN9wcIPqu21NJTVn.8i+XB3BjvBkbCnBU3AVUHn95EBtlO2spzjsvIGRy3FB2t+ZRyK3ZRD41MY2DGmVbWPW2FmlvdmPXahSqktKHsqb.n5+aN.zDQjjwmMhn5h+MUmpii7rUycPAES3bvU8hvF0zyNjX2RamL3A2I13WpqzEsz1FoKZcwh2HuCOBMPbpZtIYfvU2y8AwHpyMO9WY1P8OUJaSKzBhaTpJ4oFW3TJUK1OSoNk6wyqrG6TYO1sxd7hJ6wKqrGupxd75U3gd1rNQRgWRomBX7f9DIQkaOfSTYtwY4neCPOMjSO

It's weird that I can't replicate this because this is nothing that is depending on the DAW or OS.

[Dan Korneff]

@Christoph-Hart I've been experiencing the audio dropout effects for about a year now. I assume it's related and has been happening on all versions.
What's the easiest way to download pre 1.6 to test?
I'm goin to check the 2.0 app on all the Mac + PC combinations I have available here now.

[Dan Korneff]

Overlapping example confirmed not working on:

macOS 10.13.6
Reaper 5.961
HISE 2.0 AU crashes GarageBand on load

windows 10
Reaper 5.961
Cubase 9.5.41

[Dan Korneff]

Hey guys. I need a little help writing a script to get around this issue.
I'm trying to send a noteOff command directly after a noteOn is triggered.

Here's what I'm doing:

function onNoteOn()
{
	noteID = Message.getEventId();
	Synth.noteOffByEventId(noteID);
}

In the console I'm getting an error:

Script Processor1:! onNoteOn() - Line 3, column 31: Illegal operation in audio thread: String creation 

¯_(ツ)_/¯

[Dan Korneff]

This post is deleted!

[Dan Korneff]

@Christoph-Hart said in Sample not triggered if MIDI overlaps:

HISE processes incoming MIDI messages and creates the event IDs, I suspect there is something fishy going on in this logic.

@Christoph-Hart This is correct.
I've made a more simple example that contains only:

function onNoteOn()
{
    Console.print("on");
}

and using this midi file with an overlapping note:
midi tes.MID

If you overlap midi events of the same note and same channel, the 2nd noteOn command doesn't even make it into the Main Container.
If you look at this example, the midi event contains 4 midi notes, but only 3 make it into HISE.

[Dan Korneff]

Chatted with some code slingers the other day who pointed me to here:

[Christoph Hart]

The synthesiser class in JUCE is only partly relevant, I think the culprit is the way I am generating event IDs from the MIDI input. The problem is that there is no "correct" solution, as soon as MIDI notes with the same channel and note number overlap, things get into undefined territory.

Currently I have only a single slot per note number, the first way would be to change that to a FIFO queue, but there are performance implications that have to be evaluated against the edge case of people not using their piano roll correctly :)