68 lines
2.0 KiB
Haxe
68 lines
2.0 KiB
Haxe
package auratests.dsp;
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import utest.Assert;
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import aura.Aura;
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import aura.dsp.FractionalDelayLine;
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import aura.types.AudioBuffer;
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import aura.utils.TestSignals;
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@:access(aura.dsp.FractionalDelayLine)
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class TestFractionalDelayLine extends utest.Test {
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var audioBuffer: AudioBuffer;
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var delayLine: FractionalDelayLine;
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function setup() {
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audioBuffer = new AudioBuffer(2, 8);
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delayLine = new FractionalDelayLine(2, 8);
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}
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function test_zeroDelayTime_noDelay() {
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TestSignals.fillUnitImpulse(audioBuffer.getChannelView(0));
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TestSignals.fillUnitImpulse(audioBuffer.getChannelView(1));
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delayLine.at_setDelayLength(Left, 0.0);
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delayLine.at_setDelayLength(Right, 0.0);
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delayLine.process(audioBuffer);
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Assert.floatEquals(1.0, audioBuffer.getChannelView(0)[0]);
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Assert.floatEquals(0.0, audioBuffer.getChannelView(0)[1]);
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Assert.floatEquals(1.0, audioBuffer.getChannelView(1)[0]);
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Assert.floatEquals(0.0, audioBuffer.getChannelView(1)[1]);
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}
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function test_integralDelayTime_independentChannels() {
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TestSignals.fillUnitImpulse(audioBuffer.getChannelView(0));
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TestSignals.fillUnitImpulse(audioBuffer.getChannelView(1));
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delayLine.at_setDelayLength(Left, 1.0);
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delayLine.at_setDelayLength(Right, 3.0);
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delayLine.process(audioBuffer);
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Assert.floatEquals(0.0, audioBuffer.getChannelView(0)[0]);
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Assert.floatEquals(1.0, audioBuffer.getChannelView(0)[1]);
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Assert.floatEquals(0.0, audioBuffer.getChannelView(1)[0]);
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Assert.floatEquals(1.0, audioBuffer.getChannelView(1)[3]);
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}
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function test_floatDelayTime_independentChannels() {
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TestSignals.fillUnitImpulse(audioBuffer.getChannelView(0));
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TestSignals.fillUnitImpulse(audioBuffer.getChannelView(1));
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delayLine.at_setDelayLength(Left, 0.8);
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delayLine.at_setDelayLength(Right, 3.4);
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delayLine.process(audioBuffer);
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Assert.floatEquals(0.2, audioBuffer.getChannelView(0)[0]);
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Assert.floatEquals(0.8, audioBuffer.getChannelView(0)[1]);
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Assert.floatEquals(0.6, audioBuffer.getChannelView(1)[3]);
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Assert.floatEquals(0.4, audioBuffer.getChannelView(1)[4]);
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}
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}
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