AudioLoopPlayer rootNote

[Orvillain]

@WaterSpoon

There is a callback you can attach to an instance of AudioFile:

AudioFile.setContentCallback(var contentFunction)

This fires off whenever the AudioFile contents change.

So I think it would be something like:

// Get audio sample processor for your module here
// get a reference to the AudioFile object for the audio sample processor here
// attach the callback here, making sure the callback
// Setup the callback to set the value of the root note for the module

[WaterSpoon]

@Orvillain Thank you for your response. This looks promising I will try this AudioFile.setContentCallback(var contentFunction). I have not used that one yet and the work flow makes sense. I will report back.

[treynterrio]

@WaterSpoon I tried to deactivate the pitch detection function in the Hise source code but I need to fix something now because nothing works anymore

[treynterrio]

@WaterSpoon Let me know if it works like that

[WaterSpoon]

@treynterrio I had also previously attempted the alter the cpp files to know avail. But I assumed it was just my lack of experience. I am still playing with the call back suggestion thank you again @Orvillain I feel like it will end up being something very simple and a foundational concept I did not know how to apply yet.

I will share it when I can get this working as I think this feature would open more creative projects for everyone.

Right now my work around is on the interface I created a knob linked to the rootnote control of the audioloopprocessor and set the default value to 59. Double clicking the knob sets the rootnote to 60. I have been back and forth messing with it. More to come.

[Orvillain]

Well as it happens, I have need to use the AudioFile.setContentCallback(var contentFunction)
function as well, and try as I might, it isn't working.

I have a reference to my AudioSamplerProcessor, and I have a reference to the AudioFile within it. I can use AudioFile.setContentCallback() to attach the following function:

inline function audiofile_callback()
{
	Console.print('callback attached');
}

But I never get my message printed. It is as if the callback never gets fired on sample load or start/end point change. Bearing in mind the docs say:
Sets a callback that is being executed when a new file is loaded (or the sample range changed).

I would note that I am using AudioProcessor.setFile(xxxx) to load my audio file into the audio processor. I'm not using the AudioFile.loadFile() method.

But even if I do load my file that way, there is no change.

@Christoph-Hart any snippet for this so we can know how it is supposed to work?

[Orvillain]

If I do this:

Content.makeFrontInterface(600, 600);

const var asp = Synth.getAudioSampleProcessor("Audio Loop Player1");
const var af = asp.getAudioFile(0);
af.setContentCallback(function(){
	Console.print("This is a content callback, there are many like it, but this one is mine.");
});

It works. So that'll sort these guys out here I'm sure. Inside your callback you can just set the asp's root note property.

This also works for a brand new project using a Scriptnode Synthesiser with either a file_player node, or a SNEX node that has an AudioFile object attached to it. I just need to figure out how to work this into my existing project.

[Orvillain]

oooooo... interestingly.... if I try to assign the same callback function to multiple audiofile slots across multiple audiosampleprocessors, then the callback never gets assigned. If I assign it to just one of them... then it works.

IE:

This works fine:

inline function setup_processor_callbacks()
{
		local current_processor = Synth.getAudioSampleProcessor("sampler_0");
		local current_audiofile = current_processor.getAudioFile(0);
		current_audiofile.setContentCallback(function(x){
			Console.print("This is a callback.");
		});	
}

This does not:

inline function setup_processor_callbacks()
{
	for (i = 0; i < pad_count; i++)
	{
		local current_processor = Synth.getAudioSampleProcessor("sampler_" + i);
		local current_audiofile = current_processor.getAudioFile(0);
		current_audiofile.setContentCallback(function(x){
			Console.print("This is a callback.");
		});	
	}
}

I thought the whole point of a callback was so you could easily attach it to multiple objects without having to duplicate code? This seems like a bug to me.

[WaterSpoon]

@Orvillain Thank you!!! This is great and it works to print to the console. I appreciate the suggestion and example!!! Blessings!!!

[WaterSpoon]

@Orvillain Great end to a long journey. i knew it would end up being a simple few lines of coding.

Here is what i got working!!!

This code will keep the root note set to 60 as new samples are loaded.

Content.makeFrontInterface(600, 600);

const var asp = Synth.getAudioSampleProcessor("Audio Loop Player1");
const var af = asp.getAudioFile(0);

af.setContentCallback(function() {
    asp.setAttribute(asp.RootNote, 60);
    Console.print("Root note set to 60.");
});