From e443719bed6e05ce0e875f877f686c4f22c6f4b2 Mon Sep 17 00:00:00 2001
From: Marks Polakovs <marks@markspolakovs.me>
Date: Sun, 10 May 2020 13:10:13 +0200
Subject: [PATCH] use decibels for mic calibration slider

---
 src/mixer/audio.ts         | 5 ++++-
 src/mixer/state.ts         | 2 +-
 src/optionsMenu/MicTab.tsx | 6 +++---
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/mixer/audio.ts b/src/mixer/audio.ts
index b9105de..93088ee 100644
--- a/src/mixer/audio.ts
+++ b/src/mixer/audio.ts
@@ -286,7 +286,10 @@ export class AudioEngine extends ((EngineEmitter as unknown) as {
   }
 
   setMicCalibrationGain(value: number) {
-    this.micCalibrationGain.gain.value = value;
+    this.micCalibrationGain.gain.value =
+      value === 0
+        ? 1 :
+        Math.pow(10, (value / 10));
   }
 
   setMicVolume(value: number) {
diff --git a/src/mixer/state.ts b/src/mixer/state.ts
index 973b0f6..8a29ff3 100644
--- a/src/mixer/state.ts
+++ b/src/mixer/state.ts
@@ -83,7 +83,7 @@ const mixerState = createSlice({
       open: false,
       volume: 1,
       gain: 1,
-      baseGain: 1,
+      baseGain: 0,
       openError: null,
       id: "None",
     },
diff --git a/src/optionsMenu/MicTab.tsx b/src/optionsMenu/MicTab.tsx
index 4e213ea..8987a59 100644
--- a/src/optionsMenu/MicTab.tsx
+++ b/src/optionsMenu/MicTab.tsx
@@ -124,9 +124,9 @@ export function MicTab() {
         <div>
           <input
             type="range"
-            min={1.0 / 10}
-            max={3}
-            step={0.05}
+            min={-24}
+            max={24}
+            step={0.2}
             value={state.baseGain}
             onChange={(e) =>
               dispatch(MixerState.setMicBaseGain(parseFloat(e.target.value)))