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almost sorta properly exponent bullshit for frequencies

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This commit is contained in:
Cameron Taylor 2021-10-06 19:27:45 -04:00
parent 3a3d68424d
commit 478818a4c1
1 changed files with 10 additions and 7 deletions
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17
source/SpectogramSprite.hx
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@ -135,8 +135,6 @@ class SpectogramSprite extends FlxTypedSpriteGroup<FlxSprite>
{
var remappedShit:Int = 0;
// vis.checkAndSetBuffer();
checkAndSetBuffer();
if (!doAnim)
@ -182,7 +180,7 @@ class SpectogramSprite extends FlxTypedSpriteGroup<FlxSprite>
// trace(audioData.subarray(remappedShit, remappedShit + lengthOfShit).buffer);
}
for (sample in remappedShit...remappedShit + (Std.int((44100 * 0.120) / 4)))
for (sample in remappedShit...remappedShit + (Std.int((44100 * (10 / 60)) / 4)))
{
var left = audioData[i] / 32767;
var right = audioData[i + 1] / 32767;
@ -195,7 +193,7 @@ class SpectogramSprite extends FlxTypedSpriteGroup<FlxSprite>
fftSamples.push(balanced);
}
var freqShit = funnyFFT(fftSamples);
var freqShit = funnyFFT(fftSamples, 4);
for (i in 0...group.members.length)
{
@ -204,8 +202,13 @@ class SpectogramSprite extends FlxTypedSpriteGroup<FlxSprite>
// not every frequency is built the same!
// 20hz to 40z is a LOT of subtle low ends, but somethin like 20,000hz to 20,020hz, the difference is NOT the same!
var powedShit:Float = FlxMath.remapToRange(i, 0, group.members.length, 0, 4);
// a value between 10hz and 100Khz
var hzPicker:Float = Math.pow(10, powedShit);
// var sampleApprox:Int = Std.int(FlxMath.remapToRange(i, 0, group.members.length, startingSample, startingSample + samplesToGen));
var remappedFreq:Int = Std.int(FlxMath.remapToRange(i, 0, group.members.length, 0, freqShit[0].length - 1));
var remappedFreq:Int = Std.int(FlxMath.remapToRange(hzPicker + 50, 0, 10000, 0, freqShit[0].length - 1));
group.members[i].x = prevLine.x;
group.members[i].y = prevLine.y;
@ -292,11 +295,11 @@ class SpectogramSprite extends FlxTypedSpriteGroup<FlxSprite>
}
}
function funnyFFT(samples:Array<Float>):Array<Array<Float>>
function funnyFFT(samples:Array<Float>, ?skipped:Int = 1):Array<Array<Float>>
{
// nab multiple samples at once in while / for loops?
var fs:Float = 44100; // sample rate shit?
var fs:Float = 44100 / skipped; // sample rate shit?
final fftN = 2048;
final halfN = Std.int(fftN / 2);