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spectrometer slope is now 10dB/decade, which makes pink noise to appear flat

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minjaesong
2024-08-21 23:47:01 +09:00
parent b0480e6225
commit 7b23e34907
2 changed files with 3 additions and 2 deletions
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2
MusicPlayer/src/net/torvald/terrarum/musicplayer/gui/MusicPlayerControl.kt
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@@ -1203,7 +1203,7 @@ class MusicPlayerControl(private val ingame: TerrarumIngame) : UICanvas() {
// apply slope to the fft bins, also converts fullscale to decibels
for (bin in binHeights.indices) {
val freqR = (TerrarumAudioMixerTrack.SAMPLING_RATED / FFTSIZE) * (bin + 1)
val magn0 = fftOut.reim[2 * bin].absoluteValue / FFTSIZE * (freqR / 20.0) // apply slope
val magn0 = fftOut.reim[2 * bin].absoluteValue / FFTSIZE * freqR.sqrt() // apply slope
val magn = FastMath.interpolateLinear(FFT_SMOOTHING_FACTOR, magn0, oldFFTmagn[bin])
val magnLog = fullscaleToDecibels(magn) - dbOffset