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Alright everybody,

it was time to finally bump the version and upload new installers. Enjoy

https://github.com/christophhart/HISE/releases/tag/4.0.0

Hi everybody,

I'm currently profiling a project I'm working on and noticed a rather significant optimization possibility: when there is no signal input, some FX can be suspended until a signal is detected and save some CPU. This might highly improve the idle performance of your plugin, which is important for big DAW sessions.

This is not a new idea (some DAWs implement this already) and in certain parts of the HISE codebase this is already implemented, but now I refactored it to a general system and also allow DSP networks to set the flag.

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This is a simple overdrive going into a 16x oversample node. With the new SuspendOnSilence flag enabled, the CPU usage goes down to literally 0% if there is no signal present. You can try to disable the flag to check the effect (it's in the DspNetwork properties, next to the AllowCompilation and HasTail properties. The flag will be passed to the node compilation, so the HardcodedFX will inherit the behaviour of the network.

Be aware that this flag should not be used if your algorithm produces any sound from silence (eg. a test tone generator or a background noise player), because it will obviously mute the output when the input is silent.

You can also see the suspend state in the Module Tree, if a FX is suspended, it will show a S over the peak meters like this:

I've tested it rather thorougly and tried to cater in all use cases (polyphonic FX will also be suspended if the voice is not producing any sound), but please let me know if you find any issues.

There's also a preprocessor macro in the hi_dsp module (HISE_SUSPENSION_TAIL_MS) which defines the time that the processing stays active after the first silence detection (the silence detection is pretty sensitive, so it looks for a -90dB threshhold), if you prefer a different default value, let me know.

In my project it yields a ~40% CPU improvement in idle mode and ~10% CPU improvement when in usage (because some channels of the plugin are not always busy). I also improved the performance of reading the peak values of routing matrixes, so this might also be a contributing factor though...

Hi everybody,

I'm very thrilled to announce that the Faust integration is merged into the develop branch and ready to test.

The implementation of the Faust integration was a Google Summer of Code project that I was mentoring together with Stéphane Letz, @sletz from the GRAME Research Lab. The project was carried out by @etXzat which I would like to introduce with a warm welcome and I'm sure he's happy to answer some questions about the process or anything Faust related as he knows much more about the actual language than I do.

The Faust language allows you to write DSP algorithms using a very concise language. It's been around for quite some time and has a lively community of developers and a vast library of existing DSP algorithms that I know all of you are dying to play around with.

The current state of the Faust integration allows the full production cycle of using Faust within a HISE project:

• add the core.faust node
• write / import Faust code using the LLVM Jit compiler. Parameters will be parsed automatically and show up as node parameters that can be connected / modulated like any other parameter
• export faust code as C++ nodes (a DSP network with a faust node will create a C++ class from the faust node and use the C++ class instead when you export the network to the DLL)
• reload them as HardcodedFX modules or nodes in scriptnode

@etXzat has written a extensive blog post about the integration process as well as the build instructions and a quick getting started guide:

https://resonant-bytes.de/blog/gsoc-final-submission/

By default Faust is disabled in HISE because it requires a few non-trivial configuration steps and let's be honest, HISE isn't the most easiest software to get started with so there's no need to make it even harder...

So if you want to dive into Faust development in HISE, make sure to read the build instructions on the blog post and let us know if there are any roadblocks (we've been testing it on all three platforms the last week but I wouldn't be too surprised if we missed some build issues).

Also we would like to start the discussion on what steps should be next as there are quite a few features that we couldn't realize within the projects timeframe but hopefully will be added over the next months:

• support for MIDI and polyphony (at the moment it's only possible to use Faust for audio effects)
• enhanced IDE features (editing within HISE, SVG path diagram preview, etc).
• support for complex data communication (tables / slider packs / audio files in Faust)

I've also added a new category in the HISE forum for anything faust related, so that this topic will not explode with all kinds of different questions.

After what might be the single most offensive violation of the git flow branching model in the history of software development, I finally found the motivation to merge the develop branch back into the master branch, which had a pre-pandemic state.

Also from now on, I vow to respect the traditions of software development:

• keep the master branch stable and build at all times so it can be a valid entry point for HISE newbies.
• use the develop branch for testing new features / daily development work.
• whenever I merge the develop branch into the master branch, I'll run a CI test that ensures that it builds HISE and exports a test project on macOS / windows so that @ulrik can stop being my human build bot for macOS and notify my that I broke macOS again... I will also try to bump the version numbers with each merge to master.

I'll expect the frequency of master releases to be a few weeks to months so the general advice that David healey gave in all videos since 2019 to use the develop branch for actual development stays valid.

Oh and I've thrown in VS2022 support so you don't need to crawl the web for an ancient version of 2017 anymore...

So time went on and I simplified the build process for Faust a bit so I thought I'll post the build instructions (or the link to the instructions) here and update the post once it changes:

Windows

No Projucer modifications necessary!

• Download and install Faust to the default path (C:\Program Files\Faust). The latest version is available here: https://github.com/grame-cncm/faust/releases
• Open projects/standalone/HISE Standalone.jucer and click on Save and Open in IDE
• Change the build configuration in Visual Studio to either Debug with Faust or Release with Faust. This can be done with a drop down menu in the toolbar (which initially says Debug).
• Compile this configuration. HISE will have a text label in the top bar indicating that Faust is enabled.

macOS

See here: https://github.com/christophhart/HISE/tree/develop/tools/faust

Linux

See here:
https://resonant-bytes.de/blog/gsoc-final-submission/

Then you just need to add the directory of the Faust installation to your HISE settings under FaustPath so that it can find the Faust libraries and you're good to go.

I'll lock this topic and pin it to the top now.

What's the best way to return to coding after a vacation break? Yes, adding a fun feature that is easy on the brain cells. So here I present to you:

Code snippet templates

These extend the autocomplete items with templates of commonly used code snippets. Check out how it creates a CSS definition for a button LAF within seconds:

These are the features:

• use the stock templates that come with HISE or add your own templates in a JSON file for the ultimate customization
• use the preselect range feature to create multiple selections after inserting the template

Docs:

https://docs.hise.audio/glossary/code_snippets.html

Have fun! Also I'm happy to accept snippets to be added to the default list, so post them if you find them useful!

Alright guys, here we go:

https://github.com/christophhart/HISE/commit/888851ed2353eec4684cd94ea0d5db5d2dae84ff

I tried to cover a few common edge cases, but I'm sure there's lots to discover when doing monkey testing, so let me know if you find glitches...

Hi everybody,

not sure if that feature made it to anybody's radar, but there is a quick connection mode that let's you connect parameters to your script controls with a single click and I've seen a lot of videos / screencasts which are missing out on that simple function so I'm trying to raise awareness for this awesome helper tool...

I've updated the UX to make it a bit more approachable, so now you just need to right click a component - either in the interface editor or in the script component list and choose Enable Connection Learn. Then you need to click on any parameter (either on the module editor interface or a macro parameter in a scriptnode network and it will automatically assign the UI element to control this parameter. It does this by setting all relevant properties (processorId / parameterId as well as the parameter range) so this will heavily speed up the process if you have to connect multiple elements.

SettingsWindows

@d-healey nope this are all good suggestions - I‘ll add a script API method to disable release triggers per voice using the event ID - this should be enough for most of your feature requests, the other things are minor issues that I can fix easily.

@Fortune oopsies, the build script didn't handle spaces well (and it was particularly annoying to get the command line arguments properly escaped) when using the internal child process for the compiler.

Anyways, it's fixed now (and the weird popup shouldn't appear on macOS). Can you try again?

Are networks marked as Allow compilation now automatically compiled on export,

Nope, but almost. On compilation the ScriptFX modules are replaced with their hardcoded counterpart so we're 80% there. What's missing is that if there is no DLL present at all (or the DLL was never exported manually once before), it won't create the C++ files for the networks that will be included in the plugin export.

I've added this step now too in the compilation process although I'm hitting a few issues with hardcoded FX not being initialised correctly if there is no DLL present.

I'll sort this out and then commit it, but this will make it very convenient - you actually do not have to bother at all about compiling scriptnode networks anymore and it will be all taken care of at plugin export - unless you want to compile the DLLs before to see that state during development.

@Fortune windows or macOS?

@d-healey Are you reading past the array? what if buf[i].length - j < 5000?

I will add a tool that allows you to automatically convert a script FX into a hardcoded FX module

Alright that's also implemented:

This operation is also performed whenever you export your project through the new compilation dialog so it's guaranteed to never use a ScriptFX with a compiled network in a compiled plugin!

I figured out it's due to nested networks being removed; or at least refusing to load as nodes.

There's no way to add nested networks anymore and the entire Project tab is missing from the Node Browser.

Alright, that was only happening if you don't have a compiled DLL present - I've fixed that now to show dummy nodes that you can click on in order to compile the DLL - this should also work without restarting HISE now.

Feel free to check it out, I've also spent a few hours changing the UX of the entire compile process to be within the HISE window now so it won't spawn a console and block the UI.

Spaces in the middle should be supported, but checking for spaces at the beginning and end didn't cross my mind. I'll add this as sanity check...

@aaronventure haha I would love to be as funny as this, but in this case my old keyboard with the defect d key pranked me one last time... but damn that's a solid joke.

@JulesV I pushed the preliminary work I had on my mobile rig but it‘s not usable as it is. I‘ll need to do a few more performance tests and cleanup.