im very strongly convinced the issues is within how hise implements faust as explained in the post before, not the faust dsp itself. then again that would only explains the issue that notes are not sustained even though the pedal is pressed...

the other problems are the orphan notes that might still be a problem of the keyassigner... some never get released when the pedal is released.... could be some sort of orphans from a tretrigger of the same note...

my forte is coding dsp, all that stuff around that makes the world tick -- no clue

is there a faust node in the polyphonic scriptfx?

toes it have a dsp code?

if not put this

// Faust Source File: Test
// Created with HISE on 2026-05-15
import("stdfaust.lib");

gate = button("[20]gate");							// note on off
freq = hslider("[21]freq", 200, 20, 20000, 0.1);	// note frequeny
gain = hslider("[22]gain", 0.0, 0.0, 1.0, 0.01);	// note velocity

attack 			= hslider("AttackTime[style:knob]",0.2,0,6,0.001);
attackSlope 	= hslider("AttackSlope[style:knob]",0.7,0,1,0.001);
decay 			= hslider("DecayTime[style:knob]",0.3,0,6,0.001);
decaySlope 		= hslider("DecaySlope[style:knob]",0.3,0,1,0.001);
sustain 		= vslider("SustainLevel[style:knob]",0.5,0,1,0.001);
release 		= vslider("ReleaseTime[style:knob]",1,0,6,0.001);
releaseSlope 	= vslider("ReleaseSlope[style:knob]",0.3,0,1,0.001);
velDepth 		= vslider("velDepth[style:knob]",1,0,1,0.001);
legato 			= vslider("Legato[style:knob]",0,0,1,0.001);

ramp   			= en.adsr(0, release * 0.15, 0, 0, 1 - gate);
dramp   		= en.adsr(attack, decay * 0.1, 1,0, gate);
rslope			= releaseSlope - ramp * 0.25;
dslope			= decaySlope - dramp * 0.20;

velocity 		= 1*(1-velDepth*((1-gain))); 

envelope 		= en.adsr_bias(attack, decay, sustain, release, attackSlope, dslope, rslope, legato, gate) 
				: hbargraph("CV",0,1);


osc = os.polyblep_triangle(freq) * envelope;

process = osc,osc;

I'm not hearing any audio with your snippet.

On the script side this looks weird. What's the intention?

global Event 			= {};

Event.noteIds 			= []; 
Event.noteIds.reserve(128);

for (i = 0; i<128; i++)
{
	Event.noteIds[i] = [];
	Event.noteIds[i].reserve(32);
}

FaustUI.h:201 — each Faust voice has its own MidiZones struct containing a sustain flag:

struct MidiZones {
    float* zones[(int)HardcodedMidiZones::numHardcodedMidiZones];
    bool sustain = false;     // <-- per-voice, defaults to false
};

PolyData<MidiZones, NumVoices> midiZones;
FaustUI.h:357-365 — the reset() method only zeros the pointer array, never resets sustain:

void reset() {
    // ... clears modoutputs, parameters
    for (auto& mz : midiZones)
        mz.reset();   // ← only memsets zones[] to 0
    anyMidiZonesActive = false;
}

The struct's mz.reset() is:

void reset() {
    memset(zones, 0, sizeof(float*) * ...);   // does not touch sustain
}

FaustUI.h:330-338 — note-off behavior:

else if(e.isNoteOff()) {
    auto& mz = midiZones.get();
    if(!mz.sustain)              // ← only releases if THIS voice's sustain flag is false
        if (auto gatePtr = mz.zones[(int)HardcodedMidiZones::Gate])
            *gatePtr = 0.0f;
}

The mechanism: mz.sustain is set ONLY by the CC 64 handler (FaustUI.h:339-356) — never on voice start, never on reset. So a voice that was allocated AFTER the pedal CC came in, OR whose voice slot has never received a CC 64 during its lifetime, has mz.sustain == false — its gate gets dropped to 0 on note-off regardless of what the JUCE voice manager thinks about the pedal.

This is independent of JUCE's voice-level sustain handling. The HISE voice manager keeps the voice ALIVE (because JUCE's sustainPedalDown is true), but the Faust envelope's gate has already gone to 0 — so the voice produces silence (release tail) and gets killed by silent_killer.

HiseSnippet 3297.3oc6azzaabbcojVGSZYG6jf1dqCzIJYJJ9gjhcbcs9z1pwxR0TQH.FBtK2cH4TsblM6LTVLAFnWJPQ+ATfbp4uQtz1qEn2xe.idnmygdO88lY4xc4GxzpxIMoYAr3tuYdeNu4Mu2aWSOUQ4dTumI4rf.pxxJyz6GJboRoHzJStC5FPsxLqcstbUqMa4v3V6rE.29i3RkScep0FcCbjRpmUlLS+.b7LYmwRe802aCGeGtKsOHKqCELW5iXsYp9P2esOj46eeGO5Ar1Il8xqsiqfuovWzAjkosKYE33drSS5icvoMks0Ccjsrxrfc8k8JSotqVttW8FUpVYkRzpMVdYZUu5qznZ4aeKG5p0KUshUlKssGSIBqobTToUlY1P30sVKwy4FFbHSxPsBdnrUMfyFv2W36gpHB0ZyVLeuXijDLY1ILYSaLYum8tLOVL79ltqqGfzGijFvLSkV7lNk3UNo3UJg3MBQJSBQZFiHcC6Ztgr.U+QP44J16vUzvFNtoWKMy0Zp+8z141T.SgqJ114X58CgGhQI+pkJUfrboRyembZejhdzFzvMc78qCqUx7pvNz4uCIWtl9h5N9jsOAHDIa1r2k7Yu3N4xoetHWnn63IMve5Qv7SAuXHURCOglubkaALBuZHBI4Yj6RJcGB6W.vget4MmO2mkKaJTeJ6HhljCCOlpUq.D8E4htZzg6pXBNQveLL28340TEl.YvgZzXjiglqPguOMbjCiN4QirdGUKQHS5fCUzsE083snsEaeZ.KradTUytzRDegKX47omP8Ac4ILdys4v8h.ZwlT0lcBCAE6Q3vHJ8wPFPodQXTCuGm9gN9cn4mmrfgfl4iyXWgWGeGv4qnjpVWoBY06nn4gk2xy+JmU4BFtEIxfEPJ7oECBYbUdMivQdwvFo77NsqSCKPNAkKznPfqkVfPNnESRbibjH+1NRk9IIQ0hRBfn.jVNbOePl5abeNS0RONrzFPAXmXlZQMUAhBTkRDvLBIt.EEsi4fj3DRIr1A9z1f4DLbLtlTB9NblhH06GhHzR4xJAd41JR7mWC1H63kqijRhzP49f.rQGkRv+.iHSOvotLexggcH0CoNGemzTX6FM.kXbDHwniA+8QOb0XPu+fow9Ef6JDyHcfH6wGHJYbRWSfhDSzX81KfxGWzSqnnKvcezNa4nbvnWQvf4EPCULTDxrE8D3rCSrrr1aQkGqDA541NPvQJjIqRO5Uihz8Hm5TeKFDO6crqQCYN9Z8w.9z3CZt7eZstwO7x+3ZOm4oZEC328qWqEk0rUhCr9kqonmpzm.UuYuyml0d4J251qb6pkqth0IICTaMbrX3TfdajRdz.d.Zz.f6bp3wXHWtjo5l7.1KryKlTQ7F16it8iVFmZDxHrX9lPFiNk8p1lMA8EvYru+G+l4H0jr+xiIunqZ.PkrOkFNtTi9aeY1WNooFELwoFkY5+OIyloFkav5gAzlMYnyZzBQRHI8QGzNM8jEY6rhak4cihkCS0D.5ZQAfLgc0QftlsQJh.oOtK4pu0DPiqZ+DLl8qMIp4y7.+QjDus8i6ztlhFDAa.hTZsIgHWwFofVVNeRw00Dn1wrwHFe88lDyAPEQn5Cock+2XQ.kAyb4C4h5CRfWNrXb8HB.G5TWrg3z3SW9jNTX+bL3WMkFgnbU68bUNmPehCuI87oMYsq0pSiF9zWCIHgI8J1aywx5NfQOq0jYLD3cRw+8grnzD48.yQa1AvYxIFXPp8W8vi5y7T6UWtHb03l3eu8lvept2EyyVSt7dHjMsKbt02Oj22w9QTdSUqIVZab7FqWr3g+psJV7iE6ew7r0js03F1vADbN0uF0GNnVLIa0GIg9o160QEzQcAQtaXu69aCmAD1ifCscasIiPuMRns4digLmQ.0Da6tj8CgygGwN9IsJ9qYCgAIqKkrl7Ax7HtPdaaHkAnJJSk3OQzQg0NcWx17lLttTxGjbjcc3PsAgXIkgzlj1vY6OhAnGifKTyfhtaDbc0p4fpDe.UQNby8V5vMqQnlRTfZnboDGETRESAYgy9Tcti4zHjENEgPwZyQeVhRnq5xTtEW3QIMNMGiC04Q6WmGV3hvu65MTzvCDcf5vzDXGOnLTegZGtG8zDkTlMkJiUtp6E.VrwYfH1SfQ2LfbYMEXyAiwtvh.VgIX9vY7Xc8f55v6YwP9Yp5lWHd5XqTVGproAyELH4mGQPW5buI.KjhPpVNiZhBNZ5dXvO5okv1aX57RfuSWTDRxFrf+nXaZdj6rZiwjnTFVwMnsQ2sMVu7w5ZbGF3wpzB4xdVJUTmbfpsSqbiQFNZ9bYAYcbBBCI4KxkEJQeTsaHtmLrFj7wRkL1YRocllOhGQFjArHo87Fv9Dgi1C5rPCq9V1IjF0NFDygcpGgUkOeARoHOTxBj7kWpbk2WapyltoKyYrHaQl6lijL2btBD8CvD54uCFtzVFr8RwFtdZI4t2kfMhKoMJ.qJ7vgU59X2SQIPHhRKVd0p2pZAhK1okPLxvsJe6JwTCAKABkOAYWTOk4IKo+sXIP4qTpTwRZBBr4DXwaXiftZUPC0TT2bJrQVqGD320Hy0obOLliiuOQHcghsvJFjv7fXXkGnIWqXjXo1bCiW4rGu1.3e6AFtx3G9EiumgitYiC2GM8D+dTib9wtj7CztjbU6ZLezYBiXqY+r13lKywV+uTWRJeN6RxLeO98+7tQP6KQkGU5iY9GlVaggr.ApiuGZxeBEBd0DxRj5oy7ngiuDamr45ay2jxOFUb7QEm5GiJ9cbTwQsc7Z1X1dlsW.eQA3mnAEzRvYtjnskCHR81N9ysGk6dBOb6K71bZ8Xp54hvi05Sz8PPdTvuj8AToxZceewywWGCKZAVScMz9JVD+ogR8LdKaHIthkrLnQiJid81hN3KzwNyT.i66xrAjf3w0XeJEGB8Pdni7.GlO5AUqiD1G5sGWebCdpAtB9XnDRP.uuC1sft66fuYmafUBqfkcZXQ23k+Hknu0FMHlO0fngPZ06zDC6Aots9MOMkMLebbi0wvTjpukcCmN.toDfYAAHjVzLxnXXOrdUbLQDDSmwwmfsPSgrNq8l9.k2wy5PSiEhTCqAlmtmv66DBbFxFW1a11YzLLw.VYxE+Db+tL9gC1whccN8vA6HitWu50LMrWta88uWsioO2XRRNynV2qTNvpL9BtsNfdp5.gljQI4ir9J1eDTodCXAzyBeClZqQsN0ePnnSf9gjBwuoQi+081hBVTe0Pvsd80ne1ZudZzrQZjN4jKBE5K97O+uOJERC25M+RzrvwStNcu3VgVqZ0uZTJjF92BqPWwnPWXKPWz5yq6BzkseDsIb56EhxnuFgxD0gx23Jy0reB0m5Ho+vwe6p8ToKJOtu32+W9y+y6M5Eou9deqrHAG+hGop+Njtn76d4XToWdgnRFXiUktjMrEh9c9VnkWaHU4O7UC5uAQ9+xyTUZDR+jKJUgs1nUE1ZV0zeUTG3D1jpzYBkDPTkObpNsU4.4VXkJWlLCjixr16HODG00wum7.4FtgPbbaGcNomuxqheYGPgrmB47fucbHaK2dIhJ6kCZzyk5kGVMHUS8CeCbEMX4dIMgCVt2f+fgGscbCEOyM56VCLzWVCARCkqSZMq8t3yjxC+hrvVP+LW2zjZHDqbdQr54EwkOuHtx4EwUOuH99mWDu0qFQrkTq2QIZaJaChdt+15MSYxX9d.z0dZQaWm54Q8LEgh64hgvomdenrK8V2FLrvxoveLRx0MUyrDV8QQOYPuFoXM0WMi8RKQtONJw3uRPx7ADbp3aSbS8KYzy7kc9vcpsMTsKoRoJqtXoUVr7J4XsCDgp7yIUdZdTzmUeNrQ+XraxcI00uj07y8zJkNBAAik0bADGe6QH8DMZjCCPByukT+R0QDJeDBatB36Y.+i9F71REKCToG93j5P4cANx3ooPkiPXygXTJ5OkitKIENI5MzkKmitNAymAcLc5W7vSkptfw4Xtn9QyUnTwJEJUXU32RH4hPVmjDYX70vGj.uOPfxwDvCyAd.lGmW7fnVMEu8hqGfLL5ij0USwZoI4AMxmzC4jYTLH5qjB8PS1ToQOQJVowtbJQOLQxkjQf+DH8f7sEM.bPSw+dPGl48wzWmltwlGinI28AXYJzxAGaFPHF7n7hNdxP7K0tmcXAzGcE8aJD84HKRPeebcJFw93Y7aJPLK+ZTAb.90CoPIZBz7JkwZQhlZHFUVAnc+okvcXQhW+YUBD8dd6ZYn7B4KuXOC0B4gGvcLyOu9+x.znux8jR6ypybjoE4BjHumX8u.IwdAXVRyugQ+ZL5QpGIGFL3CHspC4nD5DzJ+badHZu014bBoKrmVHKB2jG2pie478DLXBAlVkomiaA3e2Imk0+A.ejyFa

Bypass all your scriptnode sound generates and use a waveform generator instead. If the problem still occurs then you've ruled out the issue being in scriptnode.

before i do that a closer observation:

if i press the pedal and hit a note, it is not sustained, if i hit it again it is sustained. ntextr ty not sustained on the first hit, sustained on the third hit. pedal kept pressed between hits... does this help narrow it down?

i am not sure but it might have to do with multiple instances of the same note... but just a hunch.

Are you able to recreate the issue with a minimal example, preferably without the scriptnode elements and post it as a snippet?

global ControlValue = {}; is dead code from an earlier iteration.

keysdown is i believe also never used and from an earlier iteration, i should eremove those
reg i is leftover from the commented-out for (i in Event.noteIds...) block

Do you need to manually track which keys are held down? Doesn't Synth.isKeyDown() do the job?

A few notes that probably won't solve the problem:

@Morphoice said in suck notes with keyassigner script in silent synth:

global ControlValue = {};

Avoid globals - I haven't found a single instance where they are the best way to do something yet.

@Morphoice said in suck notes with keyassigner script in silent synth:

reg midiList = Engine.createMidiList();

keysdown could probably also be a MIDI list. Midi lists should be const.
midilist isn't a good name for a variable because midilist is a data type. It's like calling an array array, it's confusing.

@Morphoice said in suck notes with keyassigner script in silent synth:

reg i = 0;

What's this guy for?