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RandomGenerator

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This commit is contained in:
Emilien Bauer 2023-01-21 14:23:03 +00:00
parent fca2ca7dc1
commit 39089cea40
5 changed files with 37 additions and 2 deletions
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1
.idea/.name generated Normal file
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@ -0,0 +1 @@
procedural-musix

10
.idea/codeStyles/Project.xml generated Normal file
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@ -0,0 +1,10 @@
<component name="ProjectCodeStyleConfiguration">
<code_scheme name="Project" version="173">
<JetCodeStyleSettings>
<option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
</JetCodeStyleSettings>
<codeStyleSettings language="kotlin">
<option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
</codeStyleSettings>
</code_scheme>
</component>

5
.idea/codeStyles/codeStyleConfig.xml generated Normal file
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@ -0,0 +1,5 @@
<component name="ProjectCodeStyleConfiguration">
<state>
<option name="USE_PER_PROJECT_SETTINGS" value="true" />
</state>
</component>

1
src/main/kotlin/AudioSink.kt
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@ -18,6 +18,7 @@ class AudioSink : Thread() {
get() = chunks.size
fun enqueueChunk(chunk: AudioChunk) {
println(chunk.tick)
chunks.add(chunk.toBytes())
}

22
src/main/kotlin/Main.kt
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@ -3,6 +3,7 @@ import Params.TWO_PI
import Params.as_samples
import filter.Compressor
import filter.Limiter
import java.lang.StrictMath.pow
import kotlin.math.cos
import kotlin.math.pow
import kotlin.math.sin
@ -35,7 +36,24 @@ class SineWaveGenerator(var tone: Float) : StepGenerator() {
}
}
class RandomGenerator(var tone: Float) :StepGenerator() {
val N = 200
val loudness = fun(i:Int): Double {
return i.toDouble().pow(-0)
}
var loudnessSum = 0.0
init {
for (i in 1 .. N)
loudnessSum+=loudness(i)
}
override fun generateSingle(time: Float): Float {
var p : Double = 0.0
for (i in 1 .. N) {
p += sin(time * toFrequency(tone) * TWO_PI * i) * loudness(i)
}
return (p/loudnessSum).toFloat()
}
}
fun main(args: Array<String>) {
val sink = AudioSink()
@ -46,7 +64,7 @@ fun main(args: Array<String>) {
gen.globalEffects.add(Compressor(as_samples(.4f).toInt())::apply)
gen.globalEffects.add(Limiter(.9f)::apply)
gen.generators.add(Chain(SineWaveGenerator(0f)::generate, ArrayList()))
gen.generators.add(Chain(RandomGenerator(0f)::generate, ArrayList()))
sink.enqueueChunk(gen.nextChunk())