diff --git a/src/net/torvald/terrarum/audio/AudioMixer.kt b/src/net/torvald/terrarum/audio/AudioMixer.kt
index 9ca933614..bdf791748 100644
--- a/src/net/torvald/terrarum/audio/AudioMixer.kt
+++ b/src/net/torvald/terrarum/audio/AudioMixer.kt
@@ -95,7 +95,7 @@ object AudioMixer: Disposable {
 
 
     init {
-        masterTrack.filters[0] = SoftLim
+        masterTrack.filters[0] = SoftClp
         masterTrack.filters[1] = Buffer
         masterTrack.filters[2] = Scope()
 
diff --git a/src/net/torvald/terrarum/audio/TerrarumAudioFilter.kt b/src/net/torvald/terrarum/audio/TerrarumAudioFilter.kt
index d7217f4d2..f33fa6eaf 100644
--- a/src/net/torvald/terrarum/audio/TerrarumAudioFilter.kt
+++ b/src/net/torvald/terrarum/audio/TerrarumAudioFilter.kt
@@ -2,7 +2,6 @@ package net.torvald.terrarum.audio
 
 import com.jme3.math.FastMath
 import net.torvald.terrarum.audio.TerrarumAudioMixerTrack.Companion.BUFFER_SIZE
-import net.torvald.terrarum.modulebasegame.ui.abs
 import kotlin.math.absoluteValue
 import kotlin.math.tanh
 
@@ -27,7 +26,7 @@ object NullFilter : TerrarumAudioFilter() {
     }
 }
 
-object SoftLim : TerrarumAudioFilter() {
+object SoftClp : TerrarumAudioFilter() {
     val downForce = arrayOf(1.0f, 1.0f)
 
     override fun thru(inbuf0: List<FloatArray>, inbuf1: List<FloatArray>, outbuf0: List<FloatArray>, outbuf1: List<FloatArray>) {
@@ -55,7 +54,7 @@ class Scope : TerrarumAudioFilter() {
     val backbufL = Array(BUFFER_SIZE / 16) { FloatArray(BUFFER_SIZE / 4) }
     val backbufR = Array(BUFFER_SIZE / 16) { FloatArray(BUFFER_SIZE / 4) }
 
-    private val sqrt2p = 0.7071067811865476
+    private val sqrt2p = 0.7071067811865475
 
     override fun thru(inbuf0: List<FloatArray>, inbuf1: List<FloatArray>, outbuf0: List<FloatArray>, outbuf1: List<FloatArray>) {
         // shift buffer
diff --git a/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt b/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
index 1277601b2..2af7ecf57 100644
--- a/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
+++ b/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
@@ -13,9 +13,7 @@ import net.torvald.terrarum.Terrarum.mouseTileX
 import net.torvald.terrarum.Terrarum.mouseTileY
 import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZE
 import net.torvald.terrarum.audio.*
-import net.torvald.terrarum.audio.MixerTrackProcessor.Companion.BACK_BUF_COUNT
 import net.torvald.terrarum.audio.TerrarumAudioMixerTrack.Companion.BUFFER_SIZE
-import net.torvald.terrarum.audio.TerrarumAudioMixerTrack.Companion.SAMPLING_RATED
 import net.torvald.terrarum.controller.TerrarumController
 import net.torvald.terrarum.gameworld.GameWorld
 import net.torvald.terrarum.gameworld.fmod
@@ -548,7 +546,7 @@ class BasicDebugInfoWindow : UICanvas() {
         }
 
         // comp marker
-        track.filters.filterIsInstance<SoftLim>().firstOrNull()?.let {
+        track.filters.filterIsInstance<SoftClp>().firstOrNull()?.let {
             for (ch in 0..1) {
                 val downForceNow = it.downForce[ch] * 1.0
                 if (downForceNow != 0.0) {