@Morphoice the first 1* part is just useless right ? (also Faust will optimise this itself of course)

Nice to meet you guys ! Sorry for coming late, I will be more prepared next time.

@whoopsydoodle

• I don't remember in detail how the HISE Faust DSP wrapper works (that is the code this connect Faust DSP to the HIS audio layer) but possibly it already adapts input/output audio buffers
• and yes the proper way would be to open access to the compiler options in the Faust LLVM JIT path as well as the C++ generation path, but I don't where it can be done. @Christoph-Hart has to help here.

Note that using double internally in the Faust generated code also requires the "architecture" wrapping code to be adapted, see for instance https://faustdoc.grame.fr/manual/architectures/#external-and-internal-audio-sample-formats.

@Morphoice They are some sophisticated models in the Faust envelop library like https://faustlibraries.grame.fr/libs/envelopes/#enadsrf_bias or the following. Could one of them be used or adapted ?

@trummerschlunk see my answer here: https://faustdoc.grame.fr/manual/syntax/#attach-primitive

Seems like an LLVM version issue. Start at least with LLVM 15 or later.

@Oli-Ullmann Possibly: https://faustlibraries.grame.fr/community/#granulation

@clevername27 said in Drum synthesis?:

@Morphoice I've been doing drum synthesis with additive synthesis. Hit me up over DM if you want to discuss. There's an also a new snippet to get you started. Faust's physical modelling toolkit is also a good starting point.

• Simple examples here: https://faustlibraries.grame.fr/libs/synths/#drum-synthesis
• https://punklabs.com plugins with Faust sources code
• https://faust.grame.fr/community/powered-by-faust/#drumvoice
• https://faust.grame.fr/community/powered-by-faust/#drty-drums
  ...etc..

In the meantime, written in Faust: https://faustlibraries.grame.fr/libs/basics/#bamulaw_bitcrusher
and the code here https://github.com/grame-cncm/faustlibraries/blob/a222717339e5f528787080e5e5438ffef8da22a9/basics.lib#L2429 and https://github.com/grame-cncm/faustlibraries/blob/a222717339e5f528787080e5e5438ffef8da22a9/basics.lib#L2371

Will there be any interest in something related to Faust integration ? I can possibly participate next meeting if you guys have some questions I can prepare answers for.

This is the role of the new ondemand primitive, just announced at IFC 24 see: https://www.youtube.com/watch?v=zli5sFc5dlE.

Not yet in the official Faust release but can be tested in this custom Faust IDE: https://orlarey.github.io/faustide/

@Lindon Sorry no idea here, not too much in the internal of HISE/Faust integration anymore.

@sletz sure but then you cannot simply copy/paste Faust code and be sure it will work this can surely be improved.

@Lindon

OK then the HISE architecture machinery could possibly use "shortname", which can be generated to uniquely name same "labels" in different groups. See: https://faustdoc.grame.fr/manual/architectures/#dsp-json-description

@Christoph-Hart would this make sense ?

@Mighty23 as you see HISE ignores the Faust vgroup construct,

what do you mean here ?

A Faust generated code is never supposed to crash. If is does, then its a Faust compiler problem, but surely not with freeverb.

You want the same x signal to go inside the cond computation (the x >= 0 ) and the "then", and "else " branches right ? Then use the split <:
operator like:

// Apply different fi.svf.bell filters based on the sign of the input
out(x, cutoff_pos, q_pos, gain_pos, cutoff_neg, q_neg, gain_neg, drive) = 
    x <: (ba.if(x >= 0,                  // If the input x is positive:
            x : fi.svf.bell(cutoff_pos, q_pos, gain_pos) : shaper_pos(drive),  // Use positive bell filter
            x : fi.svf.bell(cutoff_neg, q_neg, gain_neg) : shaper_neg(drive)));  // Else, use negative bell filter

BTW: this code https://github.com/christoph-hart/faust_fx_library/blob/main/FaustFXLibrary/DspNetworks/CodeLibrary/faust/zita_reverb.dsp is not Zita rev, but JPVERB. See https://faustlibraries.grame.fr/libs/reverbs/

Great initiative !

Some additional Faust DSP projects with source code can be found here : https://faust.grame.fr/community/powered-by-faust/
and here: https://github.com/grame-cncm/faust/tree/master-dev/examples