Don't know if this is the done thing really, but I wanted to show off:
https://youtu.be/1kMHloRQLcM

Again, wasn't sure where to put this. But I created my own node.

https://youtu.be/-siB1UJfrD0

Modelled analog bucket brigade delay. I'm starting to build up quite a nice collection of delay and reverb utilities now!

@Chazrox I might do a video or two on everything I've learned!

I'm actually moving into more JUCE C++ based projects now. But I've spent 18 years in music tech. Used to work for FXpansion, then ROLI, then inMusic until mid last year when I made the transition to developer. I've got a couple of HISE projects on the go right now - more synths and effects than sample libraries at the moment, but I've done sample libraries throughout my career, with a specific focus in drum libraries. I have a few Kontakt ports in the pipeline for this year too.

Eventually will launch my own plugin company as well. That is the goal.

Lesson 5 - SNEX code in a bit more detail.

So I'm by no means an expert in C or C++ - in fact I only just recently started learning it. But here's what I've sussed out in regards to the HISE template.... and template is exactly the right word, because the first line is:

template <int NV> struct audio_loader

Somewhere under the hood, HISE must be setup to send in an integer into any SNEX node, that integer corresponding to a voice. NV = new voice perhaps, or number of voices ????

The line above declares a template that takes this NV integer in, and creates a struct called audio_loader for each instance of NV. Indeed we can prove this by running the following code:

template <int NV> struct audio_loader
{
	SNEX_NODE(audio_loader);
	
	ExternalData data;
	double note = 0.0;
	
	// Initialise the processing specs here
	void prepare(PrepareSpecs ps)
	{

	}
	
	// Reset the processing pipeline here
	void reset()
	{
		
	}
	
	// Process the signal here
	template <typename ProcessDataType> void process(ProcessDataType& data)
	{

	}
	
	// Process the signal as frame here
	template <int C> void processFrame(span<float, C>& data)
	{

	}
	
	// Process the MIDI events here
	void handleHiseEvent(HiseEvent& e)
	{
		double note = e.getNoteNumber();
		Console.print(note);

	}
	
	// Use this function to setup the external data
	void setExternalData(const ExternalData& d, int index)
	{
		data = d;
	}
	
	// Set the parameters here
	template <int P> void setParameter(double v)
	{
		
	}
};

There are only three things happening here:

1. We set the ExternalData as in a previous post.
2. We establish a variable with the datatype of double called 'note' and we initialise it as 0.0. But this value will never hold because....
3. In the handleHiseEvent() method, we use e.getNoteNumber() and we assign this to the note variable. We then print the note variable out inside of the handleHiseEvent() method.

Now when we run this script, any time we play a midi note, the console will show us the note number that we pressed. This is even true if you play chords, or in a scenario where no note off events occur.

That's a long winded way of saying that a SNEX node is run for each active voice; at least when it is within a ScriptNode Synthesiser dsp network.

The next line in the script after the template is established is:

SNEX_NODE(audio_loader);

This is pretty straight forward. The text you pass here has to match the name of the script loaded inside your SNEX node - not the name of the SNEX node itself.

Here you can see my SNEX node is just called: snex_node.

But the script loaded into it is called audio_loader, and so the reference to SNEX_NODE inside the script has to also reference audio_loader.

@d-healey I really like that UI. Very simple, accessible, and smooth looking - for lack of a better word!

@HISEnberg said in Third party HISE developers:

A bit abashed posting here with so much talent but here it goes!

Wouldn't worry about that, you've been very helpful in getting me up and running in various threads! So thanks! (and to everyone else also!)

@HISEnberg
Yes I wrote a custom transient detector in a c++ node, and made sure it utilised an audio file, which I can load in my UI using the audio waveform floating tile.

I implemented spectral flux extraction:

• Take your audio.
• Perform an FFT on it.
• Extract the spectral flux envelope from the FFT.
• Downsample the spectral flux envelope (optional but can help accuracy)
• Perform peak picking on the spectral flux envelope.

I used the stock JUCE FFT processor.

Free mankini with every commercial license???

@Chazrox said in I wrote a reverb:

@Orvillain Please. I've been waiting for some dsp videos! I've been watching ADC's everyday on baby topics just to familiarize myself with the lingo and what nots. I think im ready to start diving in! There are some pretty wicked dsp guys in here for sure and I'd love to get some tutuorials for writing c++ nodes.

There's two guys who got me started in this. One is a dude called Geraint Luff aka SignalSmith. This is probably his most accessible video:
https://youtu.be/6ZK2Goiyotk

Then the other guy of course is Sean Costello of ValhallaDSP fame:
https://valhalladsp.com/2021/09/22/getting-started-with-reverb-design-part-2-the-foundations/
https://valhalladsp.com/2021/09/23/getting-started-with-reverb-design-part-3-online-resources/

In essence, here's the journey; assuming you know at least a little bit of C++

1. Learn how to create a ring buffer (aka my Ring Delay thread)
2. Learn how to create an all-pass filter using a ring buffer.
3. Understand how fractional delays work, and the various types of interpolation.
4. Learn how to manage feedback loops.

Loads of resources out there for sure!

@Christoph-Hart said in 47f54ba6f - remove Content.setColour & ScriptComponent.setColour - why ????:

@Orvillain yes they were relicts of long before the set call and I just forgot they exist until the AI tried to use it and messed up the magic numbers. There‘s no need for it - they just route to the set call but without a self-contained explanation.

The content.setColour call sets the background color of the interface and can easily be replaced with a panel if a plan colour background is what you want.
Are you using these methods?

I was! About 30 replacements later, I'm now not! They're still reference in the documentation on the website. I was using the call on a ton of script button objects.

@David-Healey Thanks! That might work.... will have to try it out.

In the HISE develop branch these commits perform a removal of the setColour
47f54ba6f - remove Content.setColour & ScriptComponent.setColour
0319df243 - remove Content.setColour & ScriptComponent.setColour

It looks like they've just been straight up replaced with .set() calls ?? Why the change?? Just curious.

Is it possible to have scrolling using the mouse wheel inside a custom script panel?? I have a scroll bar that appears on hover of course, but I'd really like to do mousewheel support too.

@dannytaurus said in Loading wavetables by drag-and-drop takes a long time??:

@Orvillain Weird. I'll try it out here again and see if I get the same result.

Is yours a standard mono, 'power of 2' file?

Yeppers.

@dannytaurus said in Loading wavetables by drag-and-drop takes a long time??:

@Orvillain To be clear, I was dropping a prepared wavetable WAV into the Wavetable Synth.

I'm not sure about the Wavetable Creator.

Are you dropping a wavetable WAV or just a plain WAV and hoping to make it into an interesting wavetable?

I have no idea how the Wavetable Creator works, or what it's for!

A wavetable wav. It sounds different when it is saved as a HWT. Very odd.

@dannytaurus Hilariously.... they don't sound the same!! The WAV file sounds markedly different to the HWT file here!

@dannytaurus You legend, cheers!! Will try it out!

Dohhh.. I was even posting in that thread, haha!

When I drag and drop a wav file into the wavetable synth, it takes quite a while to process it into a wavetable. Is there a way to only need to do this once, and then cache the result, or better yet, save the resutl out as a HWT file??

I'm not having much luck with the wavetable creator. In resample mode it just keeps crashing. So I'm looking into other waves to convert my wav files into wavetables.

For me it crashes whenever I try to load a 44.1kHz sample into it.