@griffinboy I've had a quick look at the JUNO-6 when the fever went down briefly, and how it works there is the lowest key is always the set vcf cutoff, and at maximum keyboard tracking the highest key would be the fully open filter...

so I recon it's ((22khz - cutoff) / 88 keys) * intensity (from 0-1) to get the cutoff increase by each key

I don't feel well enough to be able to translate this to faust code, also I have no idea how to limit those values ranges, as midi can have more than 88 notes.

other synths offer a bi-directional intensity, so the lower keys can have less cutoff than higher ones... which makes the selected cutoff kind of the midpoint and the whole frequency range along the keys pretty skewed... no idea there. in faust probably the break point function (ba.)bpf would be a good solution to that but I can imagine it takes a lot of cpu to calculate the curve all the time

@sletz said in soft_bypass and faust:

Faust IDE

(grame-cncm.github.io)

on the user end, it should be fairly trivial to replace the control primitive with the ondemand syntax once it's out, shouldn't it? I've only read Yann's specs on github so far but it seems pretty straight forward

@griffinboy I'm down with the men flu for over a week now, my brain still does not compute ;(

@aaronventure jesus. that's on demand functionality right there - it even seems to work with non bool, as long as its >0 it's processed, otherwise not!? how brilliant is that

import ("stdfaust.lib");

gain = hslider("gain",1,0,1,0.01);
process =  os.osc(440) * gain : control(gain) <:_,_;

you won't happen to know if this is safe to use or will be deprecated at some point? I assume they left it in for backwards compatibility

@ulrik nah this is for a cs-80 emulation, so polyphony is somewhat crucial :)) can't make the synth that made polyphonic aftertouch famous without including polyphonic aftertouch ;) about everything works so far but this (and portamento)

was more of a general bump though. maybe @Christoph-Hart is the only one who can answer this

bump ;)

@Christoph-Hart bump

@Soundavid is this still an issue? I was just researching the same thing as I noticed significantly more CPU usage on an M2 ultra studio mac than on an m1 macbook pro....

@aaronventure I don't really get how this works but the filter indeed is the main cpu intensive thing that I need to improve in my synths... mostly at extreme levels there are a lot of nonlinearities I have to bring in which dont make much sense to be calculated if not really needed at normal levels

@Lindon I was under the same impression as everything within faust is always processed, it can produce quite some overhead

@Christoph-Hart thanks for clarifying! So this is the way to go until faust introduces the ondemand primitive. Perfect!

Ahoi! Is faust inside a soft_bypass node bypassed or processed when the node is disabled? I can't see any cpu improvement when disabling the node...

@aaronventure my bad, it was the detune thing from the example, triggering two notes at once

@aaronventure that works thanks, but somehow now one note takes up two voices.

I was wondering what the formula for general VCF keytracking on common synthesizers is.

my suspicion would be
filter_cutoff_frequency + (note_frequecy * keytracking_intensity)

does that make any sense?

@d-healey nope, sadly not, the custom envelope shape is crucial to the synth modeled

@d-healey said in Releasing sustain pedal stops held notes in faust...:

Not sure what's causing the sustain release problem, seems to be something specific to the faust envelope as you suggested.

it's probably how HISE translates and passes the midi info to the gate parameter that's given by default in faust nodes. but probably only @Christoph-Hart can confirm or maybe knows a workaround.

Inside faust gate turns 0 when the pedal is released, even though the note is still held.
Funny enough outside of the faust node, the silent_killer still holds the voice active although there is already silence.

@d-healey that's something I just got from the snippet browser in an attempt to enable multiple strikes of the same note being spread across multiple voices and not cut off the release of the previous voice, @aaronventure recommended it in the other thread, but I couldn't get it to work with a silent_synth yet... it has no effect on the sustain problem though

Here's a snippet if anyone want to have a look or knows a solution

just play and hold a key, then press and release the sustain pedal,
the note ends - even though the key is still pressed. bad.

HiseSnippet 2358.3oc6Y80aaibDmz1LwlMWSObGP6acQdIxIJJhJNIt0Wv4XY6KFsNwHxW5ADXXrlbkzBSsq5tqjr5ACzG6Wg6s9VeoeA52hBzu.8o978MnclcIkHskcLLRxATDkDExYmcleye1YFRwNwvDIrjC0Bd+9Limm+76ojwLsVp77C2ebelm+sBZMVX51rKkK71YSO+aGrEuSWy3V7S1moMdaLtOUqYId99y+MHS9Ksfm8yO90aPSohX1TRdduQxiY+ddOtYJ08V+2wSS2llv1m2q.2qr9NwRQSYpb..n4Cp60mFeLsC6kTjs4B7dAU20y+dAIQqD0d0X5SVMZkFwwMV8oM9MOMlQa2l8jnG+zUVs8Jsow0a34eisR3FopkgZXZO+E1PlLtUW4HgSAugq4Gkxvah7ZAZ1QdaYZBZhHUulc4oIS7TZvuETvuMuyu8kA6xS3SnO0+8KrKPltihNP+4JCu4KAunhvqdA3MCH4W.RK3fzmGzJVw6altBhmeVvNBCSAtGVIn330atECBZJANDlZ8nGy1VA2LYGUdR85UIvWKuVX3CeHYWfCMwzkQDRCiHEUytnc6pDCDbUUIPH0njooLEIllldDDR0.WhGnXzTjGTP62kqIvekhzwjAZV6AoDdaxH1cULRGoPPQpnlfumJFijfw7XiEC7bXFZygqkvZyTMyYthQMfkg6WMPQ5jJOhlRXCASE1N0.ZCDsfPiQ2EosR1iPEiG0korXbCVLEAwK1o0VjDISKtqgj.mITxw4RaHUwoPDCsDx1OFL9d84orpDt4tZBipGiXtCyB3djQR0wbQGBnCAHp3TphkTVoCLj1REgcReoxtqwDcW4fTfszQzwZxQro6rMWoMgYXYKqk8Lx2epynaBNbH1fVnRQGaEqFR9P.XiZ7DcMBx4qAurZn0cSzvYPFnDmsmLVP6wiyjfho4+Ib6PjafPvP+F3.fPH.WlPyGhpKIGv.RoCk7DzDM.7SA2i1.wcAIOWfH6yTTCWJzgV7WCQ1NIZvNd6AqQJSrlxAzJQMVMKx9GfTQFnfdREhevXkBVVPFDsyP0xrLqXzkfF.H.mMgnQCPj.0fH8fCwfWwsRUH7E2kLha5RdTChNUZzgnOrBG.W80H7uBjB7e2+9KG98gKUBoukefyBNO8IFwiZ.1voVq3EPzOOcD7Z4QIDSYGmfLszAPZFBfr3sKuMO52zw2aP1JjD7rqzmbW4HnNc1AOt8zFhjb2ohkB4SIjDpgFBvRaxPxqkCrN0mQ1RzgKX0f78uo3J6REPUcUELl0dfHFi2Pb5kfO4UhJVuG3HHmco1sm4ZMmTfYlKi8XTW1FqHFz6HrRk0kNgQnNZ4hyAWbw4h8NhcUOKvnTrifadEbh3h5n3kUxEt5a2YSvehUzynA7AItFNBA+MYCg9ot56KErISerQ1G5ndth+PaGYx.H.UtWD1wNaAvGTpA.VjGR8MiK1Q+8VCpqJD+7f83l3tyFiyMCLBdpODXLqs9mErks+xT.tPv1e2Gld3EU+hWvzXeli.V2kotnYw92m929OW0Yw5ekmEye9OMJU4Qo9hLpSQTzLGo5uOe.ovLN1d6X08DoshtskTprCOF59RbEdwB+vxbiaLjRS2PzNsdDLZfcFIxHJNBiD2AL6.TqFaIKl8txFT6gvHZEGjBm+gamnwVrQvbRTKG.8uYmvhGfGFql02bDUaqv2buu0NlWnC3aIvYeNSu2gXV2jdugDha3LMCKQBiEf4eulYT7NPKAVBVouRaZpFmUi.xE5y.VisEq69qYqlKnQyt3LKcX03cD.rsMmymTbovk.iZuTXRGyHoqqmqiqcvH3gRblzYZomKQ.Jnhdos6RkkO3s0wY.bVeePnVK8BXtJovBugkJighdUVd40txJK58hxBCO8BaCeYdtr4hfjvqFbWNbIPhK4vqvokMFa26NIU3nHO8Ss8+Iqs+BWshoWds9Ohi.7dGuW+wAduCkEygRK3AKgDN7HS1apwQwcpO5hlN3OO9K9mermNH5ZNcvBenlN3iZB8kc9atOc96C64u2qyA9yC1SlN1MWGnWD.+RKo9ckBdLIadvs+tYNHn+uNXV8gJz5I3Ji8nK+QIl1X4kLC9VlrFT10d92DQ9sB1T2OmzySSkilZIY5iozX72+lA0qA+wwUS66zxkY.Fm6VFDRDBV5y6ASLBlZf+bfxeAUuOkmh4MsFngNgIuRXKRgkdvX0KkIvU2XaZLX1i2iBkxf7OrWJDfYpZwSBzkP6TmKZ+tWObIFP4lWdJv2y5Q50C8H3qQ1edbczkjC.TC2LnMcf13UBL2B.ihUysRwXpSo464couBcyAJY2AGglCU7RAMSA4tShm8s034G5j5qZ0zdHnHu2N.lYZOpBzNLXuNeGNc5UXATM42A3bWtHi0omZ2kdxYn8iecKCqeK3gKKQ6X1HmSoHUDM2HnCjo5cNIuICLfTy4n6c4PZk0OGj9K+q0OCj9q+vO7OtTH0Vw9imER70mMj3q60ZDVsaepBlIEO5THi31AZaG0COliyYVNy3WEvDCggk6ypUlqYkbdVI8NxWl6BCj2XpWawfGD0.OUN0ocyfG7DjxTWVPPDbu6E+ueWES2Ep45UPB0Q9K6blP1a1JNHnrVc5XV5bwfmCU6FNICwsRYs4n4U7DRo73RqXKJW77vsB1Q+FbU3YYy0BT5YCo73dTaYuq2n0Sd7Q3ASOA.IbpqEDshyqyoyKwkce873XKnHm8l+K7IawH7d+rEixW7+azQOZrRdX1KlFCRKZo.4+Bax+RA6h2Sh7Fd1BB8fQ1NLNtrnN2Fabc23ittabkq6Fe70ciO45twmdc23pu6MhST+7AFYOW2dnkwdaYOL466dWO1VgdL3AoSfI4by4fm4lPQvNYanxm8naaNN6xb3+4PxW55y8v7tc0Rz8yePZu4p6Gv6g+pWUti1jX4oVJ+n6j8K8LsFQXH1Eh7L7MhYjhJ24s0O.o.btj6Cvd168B+oICwND.6c0o7DlB3O5.jzcpRZf+9lMr+qNdY8ZQfPx2Nxz.lXLnOtnj.Zb.R5N3Fpm8UT1UEEvvrWtRH9ouafMPNUj5ZRcbET9KStOovs2qwxKStGHmGCeyD0nZUEPn0ipFUEHVEsykIe0u8vpGtlm2+SEyJCj

@aaronventure

HiseSnippet 2358.3oc6Y80aaibDmz1LwlMWSObGP6acQdIxIJJhJNIt0Wv4XY6KFsNwHxW5ADXXrlbkzBSsq5tqjr5ACzG6Wg6s9VeoeA52hBzu.8o978MnclcIkHskcLLRxATDkDExYmcleye1YFRwNwvDIrjC0Bd+9Limm+76ojwLsVp77C2ebelm+sBZMVX51rKkK71YSO+aGrEuSWy3V7S1moMdaLtOUqYId99y+MHS9Ksfm8yO90aPSohX1TRdduQxiY+ddOtYJ08V+2wSS2llv1m2q.2qr9NwRQSYpb..n4Cp60mFeLsC6kTjs4B7dAU20y+dAIQqD0d0X5SVMZkFwwMV8oM9MOMlQa2l8jnG+zUVs8Jsow0a34eisR3FopkgZXZO+E1PlLtUW4HgSAugq4Gkxvah7ZAZ1QdaYZBZhHUulc4oIS7TZvuETvuMuyu8kA6xS3SnO0+8KrKPltihNP+4JCu4KAunhvqdA3MCH4W.RK3fzmGzJVw6altBhmeVvNBCSAtGVIn330atECBZJANDlZ8nGy1VA2LYGUdR85UIvWKuVX3CeHYWfCMwzkQDRCiHEUytnc6pDCDbUUIPH0njooLEIllldDDR0.WhGnXzTjGTP62kqIvekhzwjAZV6AoDdaxH1cULRGoPPQpnlfumJFijfw7XiEC7bXFZygqkvZyTMyYthQMfkg6WMPQ5jJOhlRXCASE1N0.ZCDsfPiQ2EosR1iPEiG0korXbCVLEAwK1o0VjDISKtqgj.mITxw4RaHUwoPDCsDx1OFL9d84orpDt4tZBipGiXtCyB3djQR0wbQGBnCAHp3TphkTVoCLj1REgcReoxtqwDcW4fTfszQzwZxQro6rMWoMgYXYKqk8Lx2epynaBNbH1fVnRQGaEqFR9P.XiZ7DcMBx4qAurZn0cSzvYPFnDmsmLVP6wiyjfho4+Ib6PjafPvP+F3.fPH.WlPyGhpKIGv.RoCk7DzDM.7SA2i1.wcAIOWfH6yTTCWJzgV7WCQ1NIZvNd6AqQJSrlxAzJQMVMKx9GfTQFnfdREhevXkBVVPFDsyP0xrLqXzkfF.H.mMgnQCPj.0fH8fCwfWwsRUH7E2kLha5RdTChNUZzgnOrBG.W80H7uBjB7e2+9KG98gKUBoukefyBNO8IFwiZ.1voVq3EPzOOcD7Z4QIDSYGmfLszAPZFBfr3sKuMO52zw2aP1JjD7rqzmbW4HnNc1AOt8zFhjb2ohkB4SIjDpgFBvRaxPxqkCrN0mQ1RzgKX0f78uo3J6REPUcUELl0dfHFi2Pb5kfO4UhJVuG3HHmco1sm4ZMmTfYlKi8XTW1FqHFz6HrRk0kNgQnNZ4hyAWbw4h8NhcUOKvnTrifadEbh3h5n3kUxEt5a2YSvehUzynA7AItFNBA+MYCg9ot56KErISerQ1G5ndth+PaGYx.H.UtWD1wNaAvGTpA.VjGR8MiK1Q+8VCpqJD+7f83l3tyFiyMCLBdpODXLqs9mErks+xT.tPv1e2Gld3EU+hWvzXeli.V2kotnYw92m929OW0Yw5ekmEye9OMJU4Qo9hLpSQTzLGo5uOe.ovLN1d6X08DoshtskTprCOF59RbEdwB+vxbiaLjRS2PzNsdDLZfcFIxHJNBiD2AL6.TqFaIKl8txFT6gvHZEGjBm+gamnwVrQvbRTKG.8uYmvhGfGFql02bDUaqv2buu0NlWnC3aIvYeNSu2gXV2jdugDha3LMCKQBiEf4eulYT7NPKAVBVouRaZpFmUi.xE5y.VisEq69qYqlKnQyt3LKcX03cD.rsMmymTbovk.iZuTXRGyHoqqmqiqcvH3gRblzYZomKQ.Jnhdos6RkkO3s0wY.bVeePnVK8BXtJovBugkJighdUVd40txJK58hxBCO8BaCeYdtr4hfjvqFbWNbIPhK4vqvokMFa26NIU3nHO8Ss8+Iqs+BWshoWds9Ohi.7dGuW+wAduCkEygRK3AKgDN7HS1apwQwcpO5hlN3OO9K9mermNH5ZNcvBenlN3iZB8kc9atOc96C64u2qyA9yC1SlN1MWGnWD.+RKo9ckBdLIadvs+tYNHn+uNXV8gJz5I3Ji8nK+QIl1X4kLC9VlrFT10d92DQ9sB1T2OmzySSkilZIY5iozX72+lA0qA+wwUS66zxkY.Fm6VFDRDBV5y6ASLBlZf+bfxeAUuOkmh4MsFngNgIuRXKRgkdvX0KkIvU2XaZLX1i2iBkxf7OrWJDfYpZwSBzkP6TmKZ+tWObIFP4lWdJv2y5Q50C8H3qQ1edbczkjC.TC2LnMcf13UBL2B.ihUysRwXpSo464couBcyAJY2AGglCU7RAMSA4tShm8s034G5j5qZ0zdHnHu2N.lYZOpBzNLXuNeGNc5UXATM42A3bWtHi0omZ2kdxYn8iecKCqeK3gKKQ6X1HmSoHUDM2HnCjo5cNIuICLfTy4n6c4PZk0OGj9K+q0OCj9q+vO7OtTH0Vw9imER70mMj3q60ZDVsaepBlIEO5THi31AZaG0COliyYVNy3WEvDCggk6ypUlqYkbdVI8NxWl6BCj2XpWawfGD0.OUN0ocyfG7DjxTWVPPDbu6E+ueWES2Ep45UPB0Q9K6blP1a1JNHnrVc5XV5bwfmCU6FNICwsRYs4n4U7DRo73RqXKJW77vsB1Q+FbU3YYy0BT5YCo73dTaYuq2n0Sd7Q3ASOA.IbpqEDshyqyoyKwkce873XKnHm8l+K7IawH7d+rEixW7+azQOZrRdX1KlFCRKZo.4+Bax+RA6h2Sh7Fd1BB8fQ1NLNtrnN2Fabc23ittabkq6Fe70ciO45twmdc23pu6MhST+7AFYOW2dnkwdaYOL466dWO1VgdL3AoSfI4by4fm4lPQvNYanxm8naaNN6xb3+4PxW55y8v7tc0Rz8yePZu4p6Gv6g+pWUti1jX4oVJ+n6j8K8LsFQXH1Eh7L7MhYjhJ24s0O.o.btj6Cvd168B+oICwND.6c0o7DlB3O5.jzcpRZf+9lMr+qNdY8ZQfPx2Nxz.lXLnOtnj.Zb.R5N3Fpm8UT1UEEvvrWtRH9ouafMPNUj5ZRcbET9KStOovs2qwxKStGHmGCeyD0nZUEPn0ipFUEHVEsykIe0u8vpGtlm2+SEyJCj