fix even better audio

public/index.html

@@ -142,7 +142,7 @@
     </select>
     <label class="field-label" for="mic-gain">Microphone gain</label>
     <div class="gain-control">
-      <input id="mic-gain" type="range" min="0" max="2" step="0.05" value="1" />
+      <input id="mic-gain" type="range" min="0" max="4" step="0.05" value="1" />
       <span id="mic-gain-value">100%</span>
     </div>
     <div class="signal-preview" aria-live="polite">
@@ -150,7 +150,8 @@
       <meter id="mic-level" min="0" max="1" low="0.35" high="0.8" optimum="0.55" value="0"></meter>
       <span id="mic-level-value">-∞ dB</span>
     </div>
-    <p id="mic-clipping" class="hint hidden">Clipping detected — reduce microphone gain.</p>
+    <p id="mic-clipping" class="hint hidden">Peaks are hitting the limiter — lower the gain if it sounds distorted.</p>
+    <p id="mic-gain-hint" class="hint">This room allows up to 400%. Hi-Fi rooms (Code, Gaming) capture raw with no AGC and allow up to 800%.</p>
     <p class="hint">Changes apply immediately when connected, or the next time you join.</p>
     <h3>Screen sharing</h3>
     <label class="field-label" for="screen-hint">Optimization</label>