TASK 4 audio fixes round 2: dB-scaled meters, game bar moved into the preview, Notepad About button replaced by the logo → in-app About — AudioLevelMeter.ToDisplay maps -60..0 dBFS onto 0..1 (real speech/game RMS ~0.01..0.1 linear left the flat scale dead; both meters now scale through it before volume); the game audio bar moved OUT of the footer (back to two rows) and is now a bottom-center dark chip overlaid on the preview window — monitoring UI only, never on the live output; the top-bar About button (opened THIRD-PARTY-NOTICES.txt in the OS viewer) removed, the ytLlive wordmark now opens the in-app About overlay, and task 21 queued (real logo + creator-hub About with premium/coffee/socials links + in-app scrolling licensing panel) — 169 tests passing, 0 warnings

Services/Audio/AudioLevelMeter.cs

@@ -13,6 +13,20 @@ public sealed class AudioLevelMeter
 
     public float Level => _level;
 
+    /// <summary>
+    /// Maps a linear level (0..1) onto the meter's display scale: -60 dBFS..0 dBFS
+    /// spread linearly across 0..1. Linear RMS of real speech or game audio is
+    /// ~0.01..0.1 (-40..-20 dBFS), which leaves a flat (linear) meter looking
+    /// dead; the log scale makes typical levels occupy the bar.
+    /// </summary>
+    public static float ToDisplay(float linear)
+    {
+        if (linear <= 0.001f)
+            return 0f;
+        var db = 20f * MathF.Log10(linear);
+        return Math.Clamp(1f + db / 60f, 0f, 1f);
+    }
+
     public float Push(AudioSample sample)
     {
         if (sample.Samples.Length == 0)