Is SampleDataEvent implemented for Windows?

Vicente_Fleitas · May 24, 2018, 6:11pm

in what version of lime openfl it works? i’m working in a old version, maybe it will work for me?

pinkboi · May 24, 2018, 9:50pm

This isn’t ideal because of course ideally SampleDataEvent should be implemented. It would help me a lot if it was. But here’s an example I made for one of my libs demonstrating a synth working on top of openal using NativeChannel from heaps:

The key file is here:

github.com

osakared/grig.synth/blob/master/examples/fmsynth/SynthChannel.hx

import hxd.snd.NativeChannel;
import music.fmsynth.FMSynth;
import haxe.ds.Vector;
import haxe.io.BytesInput;
import haxe.Resource;

class SynthChannel extends hxd.snd.NativeChannel {

	var synth : FMSynth;
	var left : Vector<Float>;
	var right : Vector<Float>;

	public function new() {
		super(4096);
		synth = new FMSynth(44100.0, 8, 8);
	}

	public function loadPatch(name:String)
	{
		var patchBytes = Resource.getBytes(name);

This file has been truncated. show original

obscure · May 24, 2018, 9:53pm

Alas, I can’t remember what version it was.
But I have good news, it still works with OpenFL 8.0.1! There’s just one line that needs to be changed:

github.com

openfl/openfl/blob/ae3105fa1c80e957cbae3bbffef33d62545ebcc8/src/openfl/media/Sound.hx#L204


		
		__buffer = audioBuffer;
		
		dispatchEvent (new Event (Event.COMPLETE));
		
	}
	
	
	public function play (startTime:Float = 0.0, loops:Int = 0, sndTransform:SoundTransform = null):SoundChannel {
		
		if (__buffer == null || SoundMixer.__soundChannels.length >= SoundMixer.MAX_ACTIVE_CHANNELS) {
			
			return null;
			
		}
		
		if (sndTransform == null) {
			
			sndTransform = new SoundTransform ();
			
		} else {

We need to change it to this:

if (SoundMixer.__soundChannels.length >= SoundMixer.MAX_ACTIVE_CHANNELS) {

Reason is simple - if we just use the Sound object to listen for a SampleDataEvent, __buffer will be null upon initialization and the events won’t ever get fired.

Vicente_Fleitas · May 25, 2018, 7:35pm

This pattern is the music we hear? How do you lear to do that? i mean to compose inthat array the music?:

		patterns.push(["g-2|g-4", "", "", "a-4", "a#4", "", "d-2|a-4", "", "g-4", "", "f-4", "", "g-2|g-4", "", "d-4", "", "", "", "", "", "", "", "d-4", "", "g-2|g-4", "", "", "a-4", "a#4", "", "c-2|c-5", "", "a#4", "", "c-5", "", "d-2|d-5", "", "", "", "", "", "", "", "", "", "d-5", ""]);

Vicente_Fleitas · May 27, 2018, 5:16am

finally have time to test your changes, and is working just fine!

obscure · May 27, 2018, 12:05pm

It’s a bit abstract, isn’t it?
I’ve been using arrays to create music since the glory days of my TI-99/4a, so I’m quite
used to it. However, since the whole sequencer in this example is heavily based on
the .mod format, I’ve used a tracker to compose the melody and merely wrote down the notes
into the array afterwards.

Vicente_Fleitas · May 27, 2018, 4:57pm

“a#4” this is a note that i understand
"" this is silence maybe?
g-2|g-4 that i dont understand

Where goes the tempo?

Karg · June 21, 2018, 11:08am

i’ve also tested the changes proposed by obscure, seem to be working really well. any chance of integrating them in the release?

Vicente_Fleitas · June 29, 2018, 5:12pm

This is working real great now!

video

Any one knows how to make envelope for the whitenoise/percusion ?