fix: resolve LiveKit voice issues — duplicate audio, tunnel effect with 5+ users

- Detach existing audio elements before attaching to prevent double playback on reconnects
- Remove webAudioMix to eliminate Web Audio overhead compounding with multiple participants
- Use participant.setVolume() for full 0-200% per-user volume range
- Add pli_throttle and active_loopback_prevention to LiveKit server config
- Bump version to 1.3.0

CLAUDE.md

@@ -147,7 +147,7 @@ OwnCord/
 
 ```bash
 cd Server
-go build -o chatserver.exe -ldflags "-s -w -X main.version=1.0.0" .
+go build -o chatserver.exe -ldflags "-s -w -X main.version=1.3.0" .
 go test ./...                        # all tests
 go test ./... -cover                 # with coverage
 ```

Client/tauri-client/package.json

@@ -1,7 +1,7 @@
 {
   "name": "owncord-client",
   "private": true,
-  "version": "1.2.0",
+  "version": "1.3.0",
   "type": "module",
   "scripts": {
     "dev": "vite",

Client/tauri-client/src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "owncord-client"
-version = "1.2.0"
+version = "1.3.0"
 edition = "2021"
 description = "OwnCord Desktop Client"
 

Client/tauri-client/src-tauri/tauri.conf.json

@@ -1,6 +1,6 @@
 {
   "productName": "OwnCord",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "identifier": "com.owncord.client",
   "build": {
     "frontendDist": "../dist",

Client/tauri-client/src/lib/livekitSession.ts

@@ -88,7 +88,6 @@ export class LiveKitSession {
     const newRoom = new Room({
       adaptiveStream: true,
       dynacast: true,
-      webAudioMix: true,
       audioCaptureDefaults: {
         echoCancellation: loadPref("echoCancellation", true),
         noiseSuppression: loadPref("noiseSuppression", true),
@@ -111,13 +110,14 @@ export class LiveKitSession {
   ): void => {
     const userId = parseUserId(participant.identity);
     if (track.kind === Track.Kind.Audio) {
-      // Attach creates an <audio> element — required for playback
+      // Detach any previous <audio> elements to prevent duplicate playback
+      // on fast reconnects (new subscription fires before old unsubscription)
+      for (const el of track.detach()) el.remove();
       const audioEl = track.attach();
       audioEl.style.display = "none";
       document.body.appendChild(audioEl);
-      // Apply saved per-user volume scaled by master output volume
-      const savedVolume = userId > 0 ? getSavedUserVolume(userId) : 100;
-      audioEl.volume = Math.min(savedVolume, 100) / 100;
+      // Apply saved per-user volume via LiveKit's setVolume (supports 0-2.0 range)
+      participant.setVolume(this.getEffectiveVolume(userId));
       const savedOutput = loadPref<string>("audioOutputDevice", "");
       if (savedOutput !== "" && typeof audioEl.setSinkId === "function") {
         audioEl.setSinkId(savedOutput).catch((err) => {

Server/ws/livekit_process.go

@@ -58,14 +58,24 @@ func (p *LiveKitProcess) generateConfig() (string, error) {
 
 	content := fmt.Sprintf(`# Auto-generated by OwnCord — do not edit manually.
 port: 7880
+
 rtc:
   port_range_start: 50000
   port_range_end: 60000
   use_external_ip: true
+  pli_throttle:
+    low_quality: 500ms
+    mid_quality: 1s
+    high_quality: 1s
+
 keys:
   "%s": "%s"
+
 logging:
   level: info
+
+audio:
+  active_loopback_prevention: true
 `, p.cfg.LiveKitAPIKey, p.cfg.LiveKitAPISecret)
 
 	if err := os.MkdirAll(p.dataDir, 0o755); err != nil {