Add restrictOwnAudio experimental param to AudioCaptureOptions (#1974)

Author: 1egoman

.changeset/eighty-pears-cheat.md

@@ -0,0 +1,5 @@
+---
+'livekit-client': patch
+---
+
+Add restrictOwnAudio experimental param to AudioCaptureOptions

src/room/track/options.ts

@@ -292,6 +292,15 @@ export interface AudioCaptureOptions {
    */
   voiceIsolation?: ConstrainBoolean;
 
+  /**
+   * @experimental
+   * when capturing system/screen-share audio, excludes the local participant's own audio
+   * from the captured stream to prevent echo. Browser support is not widespread yet
+   * (as of mid 2026, Chromium-based browsers only).
+   * @see https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints/restrictOwnAudio
+   */
+  restrictOwnAudio?: ConstrainBoolean;
+
   /**
    * the sample rate or range of sample rates which are acceptable and/or required.
    */