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resampler periodic clicking is now quieter at least :/

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minjaesong
2023-12-12 22:51:37 +09:00
parent 95225b56b4
commit b79232cd9b
1 changed files with 15 additions and 8 deletions
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23
src/net/torvald/terrarum/audio/AudioProcessBuf.kt
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@@ -32,7 +32,7 @@ class AudioProcessBuf(inputSamplingRate: Int, val audioReadFun: (ByteArray) -> I
companion object {
private val epsilon: Double = Epsilon.E
private val TAPS = 4 // 2*a tap lanczos intp. Lower = greater artefacts
private val TAPS = 8 // 2*a tap lanczos intp. Lower = greater artefacts
fun L(x: Double): Double = if (x.absoluteValue < epsilon)
1.0
@@ -49,11 +49,11 @@ class AudioProcessBuf(inputSamplingRate: Int, val audioReadFun: (ByteArray) -> I
init {
val bl = arrayOf(
1152,1379,1815,1792,2304,2633,3500,3456,4608,5141,6870,6912,
1280,1504,1943,1920,2304,2758,3630,3584,4608,5266,7000,6912,
1536,1755,2198,2176,2560,3009,3886,3840,4608,5517,7260,7168,
1152,1380,1815,1792,2304,2634,3500,3456,4608,5141,6870,6912,
1280,1505,1943,1920,2304,2759,3630,3584,4608,5267,7000,6912,
1536,1756,2198,2176,2560,3010,3886,3840,4608,5518,7260,7168,
2048,2257,2709,2688,3072,3511,4397,4352,5120,6019,7772,7680,
4096,4514,5419,5376,6144,7022,8794,8704,10240,12038,15544,15360
4096,4513,5419,5376,6144,7022,8794,8704,10240,12038,15544,15360
)
arrayOf(48000,44100,32768,32000,24000,22050,16384,16000,12000,11025,8192,8000).forEachIndexed { ri, r ->
@@ -101,10 +101,17 @@ class AudioProcessBuf(inputSamplingRate: Int, val audioReadFun: (ByteArray) -> I
var validSamplesInBuf = 0
private val preDelay = when (denom) {
160 -> 31 // 44100
320 -> 209 // 22050
640 -> 565 // 11025
else -> 0
}
private val finL = FloatArray(fetchSize + 2 * PADSIZE)
private val finR = FloatArray(fetchSize + 2 * PADSIZE)
private var fPhaseL = Frac(0, denom)
private var fPhaseR = Frac(0, denom)
private var fPhaseL = Frac(preDelay, denom)
private var fPhaseR = Frac(preDelay, denom)
private val fmidL = FloatArray((fetchSize / q + 1.0).toInt())
private val fmidR = FloatArray((fetchSize / q + 1.0).toInt())
private val foutL = FloatArray(internalBufferSize) // 640 for (44100, 48000), 512 for (48000, 48000) with BUFFER_SIZE = 512 * 4
@@ -173,7 +180,7 @@ class AudioProcessBuf(inputSamplingRate: Int, val audioReadFun: (ByteArray) -> I
// printdbg(this, "Reading audio zero samples; Buffer: $validSamplesInBuf / $internalBufferSize samples")
}
printdbg(this, "phase = $fPhaseL")
// printdbg(this, "phase = $fPhaseL")
}
fun getLR(volume: Double): Pair<FloatArray, FloatArray> {