Global Modulator Delay in Scriptnode

[DanH]

@Christoph-Hart still getting a LFO delay in an FX Plugin....

HiseSnippet 2273.3oc0Y80aajaDmxxzIVwW5Ej.bEEn.D4k5flSmVIYYoVTT++DgFaqdR0I.2C4n2kRZg2kTc2U1V8vAzG6Gq9QneK5q8aP6LjqztqjrrrtbGttAv1jyvY9wgy+HSq.ksHLTEPxsYmQCDjbaQaORF0+v9bWIo4QjbOk9tSNuSy271NcNtcGxAiFvCCENjb4x+FjmbatNQ+8e9iGv83RaQxTDxEJWaw6b8ciRls0d+IWOuS3NhNt9o3t5dMsUxCUdpg.dxSKQFvsuh2SbFGYaMJI2FG63FoBZGwiDgjbqefxYT69pajF9uvMz8ROANvhzFDjY5STdNHhwYIG120yo038cHgji1JwJj2XEdA8TWG2IymXM9bMAVxJRaOxsVV3kOC7rRCuRof2bfTtTPZcCjdFsscf6fnDJHddBsoLRDzkCl8zPwvKYs+cd5gJfCYTQe9UhSBfASVw10JU50L3Gu52WnvW8UrCCD.vYbVT.WFNPEDw5ykNdhfBL3jILhcMOHg3aMzX+A1wxdtRQQa856LE8sAoyJv.42ouf0Kv0gYy87tDNaYRgvIjEoXWJXBIGLNNrtJPG.mfamdU.0vQRalaTnvqKNDoZ6orupXgYPSwPQzwZI8FPSaGELT7ZV8LPPuT1MfOHSptgMHPzUXTo3VvxH4dwrDBNh1hhvhbC0q1W.JC3jGw3gLOkrG964rR2P4uIhELTJck8zKcajqi1+8rAd7Q58taHKLRMXfv4UvdyfmggBs3bkoEmV.v1CUVnRIGqzYEGOHBrfikVf.Mb5UmX774Q18SVtJzMxUImugDREXepxQr8LDaoMZGGuqmXdaiHXN6.iMzfJa93cIbBiHBLS5EKtVHYtcYKvRUjsMvvH0PlBRo.bBj7.WOiiRrHiOYiX9pqErgROHbYQ1qWMW2HjVy3Mwg3dXaHLo6PoMZtXJ4YpHw4xseUguqvlE99BroI0s6bogQiAJOcbwbHiYDCVzB2VNz+RQvqgPQughILBoIxl6gd24dRmZz1jbHEiJYSoaz4CDx6JgIINiBlmJFU.qQ5rTOMNKUaOWGQ.wERF8HZ62teqiIZ.mjs+y2i7WZdDOhOVLfDAsLPDD4hafbGItFpcXR9sI8HQ3UfO.TF3Pk+.kD0etMihyVaT5IdJdDDv0wE1nnp+EzzSYQtch5+mueuQSF726uWL.LZCVlqGbxejaH5tPtr23hRaQqVtt0NU2YmxUHtQB+zDZTsQscK2XmTDJiTJaUqZ4ZkpWqBQueycJ86JvXubhMsoyK+crWZ1CrS9f0KeMRtozQbKPnjdDTCyScy6UAWEBUEEv7c4dghBeOdbLwf7j68THwDr22lxD7sg6MHANXcNLRBh8G5wAuJKnTb.TEFLJH0mReO+ZwIp.esAKLRLns6eSjtW.+rsF3ySTL4WtminKenWzEYcIvU4.QeshSJkP4w6QlshHTKdL9RWfF6JIl.JizUEw3YIH6Qo04zUsWe4pZu3lJVV39LZKWHe77w6ZyAuPzxO13MtGnOidb2tB6nDvtN8jOrvFddvP4da9YCCVJLNB+CZfrEMIXICfNanuIzEy.lKGrufYhCiOXHrcRHD2gTt+AMIKKzJ.3mK5nZA7ucH2efm3qgs1qYWhU.Pe7YSMGG2bftFgMzvjT3EtJYv2Xo6dzZgcOR9Z0PLm2o7n.WHriB1f15VYNLFcnMXMLQtYbIbL5Z0VHczC9uvWLQqIFLfn0XhI0.HmIhtASKgmbw+MjtYNWc3Bv5qipeDsTQ3ej8wTZX1K2Xee3DTOWKk2nA8URWabJCGiA+99pgXpNyN3s7vNbWOLXo8vPnnky4x1.y5qgfNnmAsu.LeB2FLsiZwi5iAcXYOvqFpyae+WzAsxnXFmq2Xq.T4qy4h2KIOR2XAL5CE3mQ65dakxeT66PxffuHEBRyzObk9HJ3rC215N2vFxqlhVKkhdLUa5rH2ioMS348nmT0+MoAvQPxu0LA8MCu.oB2dfDW4.7AlG1JP8UNF0mAcuHE5lvwOba9VzddpK4deDj4rli.QwTjePZa8j5Bc3A8DQgwMKIE1l.F8tFKISogW2kzJcU5mPOIP7WGBwBiLMI3ItcbCWSkSb5Yfw51OhSwLQrlykwi.sdpqL9nfhA0jS42FOdCpUMXh1S5MfRsfwFeTivyrRR5C+LZjrptESBIr8D7frmLaQgKB0ungxCvGcs6DlYLLajXXRpbmXbR59n8L8NAYZuRbiAro4zrULBXFQm0fkcyOabvhhRW0f.iCXF0fI.0EiKhjdXpXJ+0wU0m7m3oehG5wPEUGnmBS+0f.xdxrw7cY2fVNqO6lvDvG51l5H3Ef+Y4xMZTp5N0JWtR056Vem3GeII.a+gQJviZRGVyWiOGDUkR5OKqFkK0nbiTp+4zFEq2.+pYUemJkJuakYARsp6ZsacqcqTp1NV0qoARd5eNIXxpXoLpe8D0+H5WZUe5nz5wQkan6bd5fxkJV2nzogZkRVkvMaiF0q1X2RVw1r19JEbwcYuUTUUuirJaf8WKta6v8i+4HzMolGSxYZ49IMY0cJfeDE8xJfCTpq74596VoKrm9lEO1P7WQeitfXx8gFmMRay+0wjSt9IaBCVK3An+WK6CPOXoe.5b4W5K37.dv40+Y2CNurWW84ybzD9vuf8mlmE+YFXRwt1isTS8jE2KvNvcfxiiM6jOIQ9D5uXOzCooLs2D9rGcG+rGodJq2I5A5LMmcD9CT36mloX+3TeY86Hj2oTCFmnIE+s5yCwWRLTDko+.PrcTmxCgvZ8SSloMgdRnkSyqSldQGNLDpPMdCnKRhI7LUL+FZspEgut+V7mMND9Qky+zLl7.N9W78Z08dsbdonmvjibzm3m4OCjAwSbB++.DuvGtJ+R8vUeRxVs5OV0pq9eJdekeJzgO2NP8QayyRgAXOVOCruk5+GW2jdJNlYM9s6M8M4CEj9nsMZh+RvEZ9qo7JrlJqvZptBqYmUXM0Vg0r6Jrl5KbMXu.w2z.C4fIZcrICdtIkOxkm7+.34PghG

[DanH]

I bounced off some audio so you can see the delay - the LFO is a square shape routed a HPF so basically on / off. You can see the tail at the beginning and a gap / delay on the second region.

Could someone else test please? Unless there's something wrong with the snippet @Christoph-Hart ?!

[DanH]

If anyone has a chance to test I'd be super grateful!

[DanH]

@Christoph-Hart ok so without Clock Sync checked on the Global LFO this is much tighter, in fact it's a little ahead...

So perhaps there's an issue there? Or in my code?

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[DanH]

@Christoph-Hart ok so additionally I began tweaking Audio settings in Logic and the process buffer range makes a big difference to the delay size... (but nothing get's it to zero).

Below I made 3 tracks of the 3 different sizes available:

Will test some other DAWs now

[DanH]

@Christoph-Hart ok tested on Ableton, BitWig and FL (Win + Mac) and it's all a little delayed. It's also different each time the filter moves, the sound, the waveshape created etc.

Is there anything else I can test?!

[Christoph Hart]

@DanH yeah you need to enable the clock sync module if you want it to be sample accurate. If you disable it, it will just react to a dummy note on message that is added to the MIDI buffer but that's a hack that I wrote 8 years ago and is not going to be accurate.

I'm trying to improve the accuracy when using the clock sync mode, there is already a system in place that allows sample accurate syncing but I haven't hooked up the LFO there yet.

[DanH]

@Christoph-Hart Right, sorry this is all WITH clock-sync mode engaged - I ran a test earlier to see what happens with it not engaged and it was better - but not the behaviour I want obviously... That was the only post without clock-sync, if that make sense.

Any timescale for hooking up the LFO?! :folded_hands_light_skin_tone:

[Christoph Hart]

@DanH I'm sitting on it right now.

[DanH]

@Christoph-Hart Thank you!

[Christoph Hart]

@DanH Alright I've pushed the fix for the clock synced LFO, please check if that helps.

I've also removed the sync by note-on hack so that the only way to sync the LFO is to actually enable Sync to Clock (I don't see a reason for keeping this around any longer).

[DanH]

@Christoph-Hart ok definitely tighter! It is still different on every oscillation however, but I compared it to a couple of Logic's modulators doing a similar thing and it's in the same ballpark so I'm far more comfortable using it now :)

I'd say it looks and sounds like it could still be a bit tighter, but I've no idea what's going on under the hood, and is much better than before.

Thank you! :folded_hands_light_skin_tone:

[DanH]

@Lindon

But hold on --- Lindon removes the smoo he put on the slider - and bingo all good...

When you remove the smoo how is the code supposed to look?

import("stdfaust.lib");

Q = hslider("Q",1,0.7072,25,0.01);
normFreq = hslider("freq",0.1,0,1,0.001):si.smoo;

process = ve.moogLadder(normFreq,Q) <:_:_;

[Lindon]

@DanH
like this:

import("stdfaust.lib");

Q = hslider("Q",1,0.7072,25,0.01);
normFreq = hslider("freq",0.1,0,1,0.001);

process = ve.moogLadder(normFreq,Q) <:_:_;

[DanH]

@Lindon Thanks :)

I'm still getting clicks when the filter snaps back after triggering notes. Is yours fixed you think?

[Christoph Hart]

@DanH You either get clicks because you're not smoothing or you get a delayed modulation because of the smoothing. Pick one.