diff --git a/Controls/AudioDock.xaml b/Controls/AudioDock.xaml
index b679017..a9daeb0 100644
--- a/Controls/AudioDock.xaml
+++ b/Controls/AudioDock.xaml
@@ -227,13 +227,16 @@
                                            FontFamily="{StaticResource FontFamily.Mono}" TextAlignment="Right"
                                            Foreground="{StaticResource Brush.OnSurfaceVariant}" Text="{Binding MicSyncOffsetLabel}"/>
                             </Grid>
+                            <Slider Minimum="0" Maximum="500" SmallChange="5" LargeChange="25"
+                                    TickFrequency="5" IsSnapToTickEnabled="True"
+                                    Value="{Binding MicSyncOffsetMs, Mode=TwoWay}" VerticalAlignment="Center"/>
                             <StackPanel Orientation="Horizontal" Margin="0,2,0,0" HorizontalAlignment="Right">
                                 <Button Content="off" Width="26" Height="16" FontSize="9" Padding="0" Margin="0,0,4,0"
                                         Style="{StaticResource YtButtonSecondary}" Click="MicSyncPreset_Click" Tag="0"/>
-                                <Button Content="150" Width="30" Height="16" FontSize="9" Padding="0" Margin="0,0,4,0"
-                                        Style="{StaticResource YtButtonSecondary}" Click="MicSyncPreset_Click" Tag="150"/>
-                                <Button Content="200" Width="30" Height="16" FontSize="9" Padding="0"
-                                        Style="{StaticResource YtButtonSecondary}" Click="MicSyncPreset_Click" Tag="200"/>
+                                <Button Content="175" Width="30" Height="16" FontSize="9" Padding="0" Margin="0,0,4,0"
+                                        Style="{StaticResource YtButtonSecondary}" Click="MicSyncPreset_Click" Tag="175"/>
+                                <Button Content="350" Width="30" Height="16" FontSize="9" Padding="0"
+                                        Style="{StaticResource YtButtonSecondary}" Click="MicSyncPreset_Click" Tag="350"/>
                             </StackPanel>
                         </StackPanel>
                     </Grid>
diff --git a/Services/Audio/AudioMixer.cs b/Services/Audio/AudioMixer.cs
index dd0b6e3..d97e524 100644
--- a/Services/Audio/AudioMixer.cs
+++ b/Services/Audio/AudioMixer.cs
@@ -235,7 +235,9 @@ public sealed class AudioMixer : IDisposable
         _liveCts = cts;
         _pipe = new NamedPipeAudioWriter();
         _pipe.Start(pipeName);
-        _log?.Invoke($"Audio live: started, pipe '{pipeName}'");
+        // Prove in the log which mic delay is actually in force: the value lives in the layout DB and a
+        // preset click is invisible in a recording.
+        _log?.Invoke($"Audio live: started, pipe '{pipeName}', mic delay {_micSyncOffsetMs?.Invoke() ?? 0} ms");
         _ = Task.Run(() => LiveLoopAsync(_pipe, cts.Token));
     }
 
diff --git a/docs/ai/output.md b/docs/ai/output.md
index 3aa90d4..96baa7a 100644
--- a/docs/ai/output.md
+++ b/docs/ai/output.md
@@ -296,7 +296,10 @@ devices, no timers).
   alert audio are not tied to a camera frame and must not move with it. Seam: `Func<int> micSyncOffsetMs`
   (VM `MicSyncOffsetMs`, **0..500 ms**, persisted `Audio.MicSyncOffsetMs`, shipped default **175** —
   the creator's own C920 measurement, not a constant: the right number belongs to the machine).
-  Presets `off / 150 / 200` sit in the LIP-SYNC bay under the whole-mix slider. Both lines are
+  A **slider 0..500** plus `off / 175 / 350` presets sit in the LIP-SYNC bay under the whole-mix
+  slider — presets alone could not express the value a slow camera actually needs. `Audio live: started`
+  logs the applied number, because the value lives in the layout DB and a preset click is invisible in a
+  recording. Both lines are
   reconfigured every tick, so both carry the 2026-09-12 warning: a `Configure` that reallocates
   discards the buffered audio every 10 ms.
 - **The audio clock is the wall clock, not the tick count (2026-11-12).** `LiveLoopAsync` asks