release: bump version to 0.0.6.2

Bei kurzen Saetzen (nur ein paar Chunks + sofort final) konnten die
async handlePcmChunk-Calls parallel laufen. Der final-Chunk konnte
native end() aufrufen BEVOR der vorherige Chunk seinen native start()
abgeschlossen hatte. Der Writer-Thread startete dann mit endRequested
bereits true, verarbeitete keine Chunks sauber → Audio ging verloren.

Fix: Wrapper chaint alle Chunk-Calls an eine Promise-Queue:
  _pcmChunkQueue = Promise.resolve()
  handlePcmChunk → _pcmChunkQueue.then(() => _handlePcmChunkImpl(p))

So werden start/writeChunk/end garantiert in der richtigen Reihenfolge
verarbeitet. Der API-Contract bleibt (gleiches return-Promise).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

android/android/app/build.gradle

@@ -79,8 +79,8 @@ android {
         applicationId "com.ariacockpit"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 507
-        versionName "0.0.5.7"
+        versionCode 602
+        versionName "0.0.6.2"
         // Fallback fuer Libraries mit Product Flavors
         missingDimensionStrategy 'react-native-camera', 'general'
     }

android/android/app/src/main/java/com/ariacockpit/PcmStreamPlayerModule.kt

@@ -32,11 +32,17 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
         private const val TAG = "PcmStreamPlayer"
         // Fallback wenn JS keinen Wert uebergibt.
         private const val DEFAULT_PREROLL_SECONDS = 3.5
-        private const val MIN_PREROLL_SECONDS = 0.5
+        // 0.0 = sofortige Wiedergabe — play() direkt beim ersten Chunk.
+        // Macht Sinn fuer F5-TTS weil Render so schnell ist dass ein Puffer
+        // unnoetig ist und bei kurzen Saetzen sogar stoeren kann.
+        private const val MIN_PREROLL_SECONDS = 0.0
         private const val MAX_PREROLL_SECONDS = 10.0
         // Stille am Stream-Anfang, damit AudioTrack sauber anfaehrt und die
         // ersten Samples nicht abgeschnitten werden (XTTS-Warmup + play()-Latenz).
-        private const val LEADING_SILENCE_SECONDS = 0.2
+        private const val LEADING_SILENCE_SECONDS = 0.3
+        // Stille am Ende — puffert das Hardware-Flushen damit die letzten
+        // echten Samples garantiert ausgespielt werden bevor stop() kommt.
+        private const val TRAILING_SILENCE_SECONDS = 0.3
     }
 
     override fun getName() = "PcmStreamPlayer"
@@ -59,9 +65,12 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
             // Alte Session beenden falls vorhanden
             stopInternal()
 
-            val prerollSec = prerollSeconds
-                .coerceIn(MIN_PREROLL_SECONDS, MAX_PREROLL_SECONDS)
-                .let { if (it.isFinite() && it > 0) it else DEFAULT_PREROLL_SECONDS }
+            // Nur NaN/Inf → Default. 0.0 ist gueltig (= sofortige Wiedergabe).
+            val prerollSec = if (prerollSeconds.isFinite() && prerollSeconds >= 0.0) {
+                prerollSeconds.coerceIn(MIN_PREROLL_SECONDS, MAX_PREROLL_SECONDS)
+            } else {
+                DEFAULT_PREROLL_SECONDS
+            }
 
             val channelConfig = if (channels == 2) AudioFormat.CHANNEL_OUT_STEREO else AudioFormat.CHANNEL_OUT_MONO
             val encoding = AudioFormat.ENCODING_PCM_16BIT
@@ -103,9 +112,9 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
                 val t = track ?: return@Thread
                 try {
                     // Leading-Silence in den Buffer — gibt AudioTrack Zeit anzufahren.
-                    val silenceBytes = ((sampleRate * channels * 2) * LEADING_SILENCE_SECONDS).toInt() and 0x7FFFFFFE
-                    if (silenceBytes > 0) {
-                        val silence = ByteArray(silenceBytes)
+                    val leadingBytes = ((sampleRate * channels * 2) * LEADING_SILENCE_SECONDS).toInt() and 0x7FFFFFFE
+                    if (leadingBytes > 0) {
+                        val silence = ByteArray(leadingBytes)
                         var silOff = 0
                         while (silOff < silence.size && !writerShouldStop) {
                             val w = t.write(silence, silOff, silence.size - silOff)
@@ -114,18 +123,38 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
                         }
                         bytesBuffered += silence.size
                     }
-                    while (!writerShouldStop) {
-                        val data = queue.poll(50, java.util.concurrent.TimeUnit.MILLISECONDS) ?: run {
+                    // Bei preroll=0: play() SOFORT nach Leading-Silence aufrufen,
+                    // nicht erst bei Ankunft des ersten echten Chunks. Android's
+                    // AudioTrack haelt den Play-State und wartet auf neue Samples.
+                    // So verschluckt es keine Worte wenn der erste Chunk erst
+                    // nach play()-Startup-Latenz eintrifft.
+                    if (prerollBytes == 0 && !playbackStarted) {
+                        try {
+                            t.play()
+                            playbackStarted = true
+                            Log.i(TAG, "Playback sofort gestartet (preroll=0, ${bytesBuffered}B silence)")
+                        } catch (e: Exception) {
+                            Log.w(TAG, "play() sofort failed: ${e.message}")
+                        }
+                    }
+                    mainLoop@ while (!writerShouldStop) {
+                        val data = queue.poll(50, java.util.concurrent.TimeUnit.MILLISECONDS)
+                        if (data == null) {
                             if (endRequested) {
                                 // Falls wir vor Pre-Roll enden (kurzer Text): trotzdem abspielen
                                 if (!playbackStarted) {
-                                    try { t.play() } catch (_: Exception) {}
-                                    playbackStarted = true
+                                    try {
+                                        t.play()
+                                        playbackStarted = true
+                                        Log.i(TAG, "Playback gestartet VOR Pre-Roll (kurzer Text, ${bytesBuffered}B gepuffert)")
+                                    } catch (e: Exception) {
+                                        Log.w(TAG, "play() fallback failed: ${e.message}")
+                                    }
                                 }
-                                return@Thread
+                                break@mainLoop
                             }
-                            null
-                        } ?: continue
+                            continue@mainLoop
+                        }
 
                         // Pre-Roll Check: play() erst wenn genug gepuffert
                         if (!playbackStarted && bytesBuffered + data.size >= prerollBytes) {
@@ -146,6 +175,19 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
                         }
                         bytesBuffered += data.size
                     }
+                    // Trailing-Silence damit die letzten echten Samples garantiert
+                    // durch das Hardware-Buffering kommen bevor stop() sie abschneidet
+                    val trailingBytes = ((sampleRate * channels * 2) * TRAILING_SILENCE_SECONDS).toInt() and 0x7FFFFFFE
+                    if (trailingBytes > 0 && !writerShouldStop) {
+                        val silence = ByteArray(trailingBytes)
+                        var silOff = 0
+                        while (silOff < silence.size && !writerShouldStop) {
+                            val w = t.write(silence, silOff, silence.size - silOff)
+                            if (w <= 0) break
+                            silOff += w
+                        }
+                        bytesBuffered += silence.size
+                    }
                 } catch (e: Exception) {
                     Log.w(TAG, "Writer-Thread Fehler: ${e.message}")
                 } finally {

android/package.json

@@ -1,6 +1,6 @@
 {
   "name": "aria-cockpit",
-  "version": "0.0.5.7",
+  "version": "0.0.6.2",
   "private": true,
   "scripts": {
     "android": "react-native run-android",

android/src/components/VoiceButton.tsx

@@ -93,18 +93,24 @@ const VoiceButton: React.FC<VoiceButtonProps> = ({
     }
   }, [isRecording]);
 
-  // VAD Silence Callback — Auto-Stop
+  // VAD Silence Callback — Auto-Stop.
+  // WICHTIG: NICHT auf isRecording prüfen (Closure ist stale) — stattdessen
+  // audioService selber fragen. Empty deps → Listener wird EINMAL registriert.
+  // audioService garantiert jetzt dass der Callback pro Aufnahme nur einmal
+  // feuert (silenceFired-Latch).
+  const onCompleteRef = useRef(onRecordingComplete);
+  useEffect(() => { onCompleteRef.current = onRecordingComplete; }, [onRecordingComplete]);
   useEffect(() => {
     const unsubSilence = audioService.onSilenceDetected(async () => {
-      if (!isRecording) return;
-      setIsRecording(false);
+      if (audioService.getRecordingState() !== 'recording') return;
       const result = await audioService.stopRecording();
+      setIsRecording(false);
       if (result && result.durationMs > 500) {
-        onRecordingComplete(result);
+        onCompleteRef.current(result);
       }
     });
     return unsubSilence;
-  }, [isRecording, onRecordingComplete]);
+  }, []);
 
   // Auto-Start fuer Wake Word (extern getriggert)
   const startAutoRecording = useCallback(async () => {
@@ -136,23 +142,35 @@ const VoiceButton: React.FC<VoiceButtonProps> = ({
     }
   };
 
-  // Tap-to-Talk: Einmal tippen startet mit Auto-Stop
+  // Tap-to-Talk: Einmal tippen startet mit Auto-Stop.
+  // Guard gegen Doppel-Tap während asyncer Start/Stop.
+  const tapBusy = useRef(false);
   const handleTap = async () => {
-    if (disabled) return;
-    if (isRecording) {
-      // Aufnahme manuell stoppen
-      setIsRecording(false);
-      const result = await audioService.stopRecording();
-      if (result && result.durationMs > 300) {
-        onRecordingComplete(result);
-      }
-    } else {
-      // Aufnahme mit Auto-Stop starten
-      const started = await audioService.startRecording(true);
-      if (started) {
-        isLongPress.current = false;
-        setIsRecording(true);
+    if (disabled || tapBusy.current) return;
+    tapBusy.current = true;
+    try {
+      // Fragen WIR den Service, nicht den React-State (Closure kann stale sein)
+      const svcState = audioService.getRecordingState();
+      if (svcState === 'recording') {
+        // Aufnahme manuell stoppen
+        const result = await audioService.stopRecording();
+        setIsRecording(false);
+        if (result && result.durationMs > 300) {
+          onRecordingComplete(result);
+        }
+      } else if (svcState === 'idle') {
+        // Aufnahme mit Auto-Stop starten
+        const started = await audioService.startRecording(true);
+        if (started) {
+          isLongPress.current = false;
+          setIsRecording(true);
+        }
       }
+      // svcState === 'processing': Stopp in progress — nichts tun, User
+      // muss nochmal tippen wenn fertig. Aber wir blockieren mit tapBusy
+      // kurz damit der User's UI-Feedback synchron bleibt.
+    } finally {
+      tapBusy.current = false;
     }
   };
 

android/src/screens/ChatScreen.tsx

@@ -316,6 +316,10 @@ const ChatScreen: React.FC = () => {
       // TTS-Audio abspielen wenn vorhanden — respektiert geraetelokalen Mute/Disable
       // WICHTIG: via Ref statt direkt state lesen, sonst ist's stale (Closure-Bug).
       const canPlay = ttsCanPlayRef.current;
+      if (message.type === 'audio_pcm' || (message.type === 'audio' && message.payload.base64)) {
+        console.log('[Chat] audio-msg canPlay=%s (enabled=%s muted=%s)',
+                    canPlay, ttsDeviceEnabled, ttsMuted);
+      }
       if (message.type === 'audio' && message.payload.base64) {
         const b64 = message.payload.base64 as string;
         const refId = (message.payload.messageId as string) || '';

android/src/services/audio.ts

@@ -95,8 +95,8 @@ export const CONV_WINDOW_STORAGE_KEY = 'aria_conv_window_sec';
 // TTS-Wiedergabegeschwindigkeit — wird pro Geraet gespeichert und an die
 // Bridge mitgegeben (speed-Param im F5-TTS infer()). 1.0 = normal.
 export const TTS_SPEED_DEFAULT = 1.0;
-export const TTS_SPEED_MIN = 0.5;
-export const TTS_SPEED_MAX = 2.0;
+export const TTS_SPEED_MIN = 0.1;
+export const TTS_SPEED_MAX = 5.0;
 export const TTS_SPEED_STORAGE_KEY = 'aria_tts_speed';
 
 export async function loadTtsSpeed(): Promise<number> {
@@ -143,7 +143,7 @@ const MAX_RECORDING_MS = 120000;
 // Pre-Roll: Wie lange Audio im AudioTrack-Buffer liegt bevor play() startet.
 // Einstellbar via Diagnostic/Settings (Key: aria_tts_preroll_sec).
 export const TTS_PREROLL_DEFAULT_SEC = 3.5;
-export const TTS_PREROLL_MIN_SEC = 1.0;
+export const TTS_PREROLL_MIN_SEC = 0;     // 0 = sofort abspielen (F5-TTS ist schnell genug)
 export const TTS_PREROLL_MAX_SEC = 6.0;
 export const TTS_PREROLL_STORAGE_KEY = 'aria_tts_preroll_sec';
 
@@ -196,6 +196,8 @@ class AudioService {
   private lastSpeechTime: number = 0;
   private vadTimer: ReturnType<typeof setInterval> | null = null;
   private maxDurationTimer: ReturnType<typeof setTimeout> | null = null;
+  // Latch damit der Silence-Callback pro Aufnahme genau einmal feuert
+  private silenceFired: boolean = false;
   private noSpeechTimer: ReturnType<typeof setTimeout> | null = null;
 
   constructor() {
@@ -305,33 +307,46 @@ class AudioService {
       // Andere Apps waehrend der Aufnahme pausieren (Musik, Videos etc.)
       AudioFocus?.requestExclusive().catch(() => {});
 
-      // VAD aktivieren — Stille-Dauer aus AsyncStorage (Settings-konfigurierbar)
+      // VAD aktivieren — Stille-Dauer aus AsyncStorage (Settings-konfigurierbar).
+      // WICHTIG: jeder Trigger (VAD-Stille / Max-Dauer / No-Speech-Window)
+      // disable SOFORT den VAD-Flag und clear den Timer, BEVOR die Listener
+      // gefeuert werden. Sonst feuert das setInterval weiter alle 200ms und
+      // ruft stopRecording parallel auf → audio-recorder-player crasht.
       this.vadEnabled = autoStop;
+      this.silenceFired = false;
+      const fireSilenceOnce = (reason: string) => {
+        if (this.silenceFired) return;
+        this.silenceFired = true;
+        this.vadEnabled = false;
+        if (this.vadTimer) { clearInterval(this.vadTimer); this.vadTimer = null; }
+        if (this.maxDurationTimer) { clearTimeout(this.maxDurationTimer); this.maxDurationTimer = null; }
+        if (this.noSpeechTimer) { clearTimeout(this.noSpeechTimer); this.noSpeechTimer = null; }
+        console.log('[Audio] Silence-Fire: %s', reason);
+        this.silenceListeners.forEach(cb => {
+          try { cb(); } catch (e) { console.warn('[Audio] silence listener err:', e); }
+        });
+      };
       if (autoStop) {
         const vadSilenceMs = await loadVadSilenceMs();
         console.log('[Audio] VAD-Stille:', vadSilenceMs, 'ms');
         this.vadTimer = setInterval(() => {
           const silenceDuration = Date.now() - this.lastSpeechTime;
           if (silenceDuration >= vadSilenceMs) {
-            console.log(`[Audio] VAD: ${silenceDuration}ms Stille — Auto-Stop`);
-            this.silenceListeners.forEach(cb => cb());
+            fireSilenceOnce(`VAD ${silenceDuration}ms Stille`);
           }
         }, 200);
         // Notbremse: Nach MAX_RECORDING_MS zwangsweise stoppen
         this.maxDurationTimer = setTimeout(() => {
-          console.warn(`[Audio] Max-Dauer ${MAX_RECORDING_MS}ms erreicht — Zwangs-Stop`);
-          this.silenceListeners.forEach(cb => cb());
+          fireSilenceOnce(`Max-Dauer ${MAX_RECORDING_MS}ms`);
         }, MAX_RECORDING_MS);
       }
 
       // Conversation-Window: Wenn der User innerhalb noSpeechTimeoutMs nicht
-      // anfaengt zu sprechen → Aufnahme abbrechen (Speech-Gate verwirft sie),
-      // ChatScreen erkennt das und beendet die Konversation.
+      // anfaengt zu sprechen → Aufnahme abbrechen (Speech-Gate verwirft sie).
       if (noSpeechTimeoutMs > 0) {
         this.noSpeechTimer = setTimeout(() => {
           if (!this.speechDetected && this.recordingState === 'recording') {
-            console.log(`[Audio] Conversation-Window ${noSpeechTimeoutMs}ms ohne Sprache — Stop`);
-            this.silenceListeners.forEach(cb => cb());
+            fireSilenceOnce(`Conversation-Window ${noSpeechTimeoutMs}ms ohne Sprache`);
           }
         }, noSpeechTimeoutMs);
       }
@@ -444,7 +459,13 @@ class AudioService {
 
   /** Einen PCM-Chunk aus einer audio_pcm Nachricht empfangen.
    *  silent=true → nur cachen, nicht abspielen (z.B. wenn TTS geraetelokal gemutet).
-   *  Gibt bei final=true den Cache-Pfad zurueck (file://) oder '' wenn nicht gecached. */
+   *  Gibt bei final=true den Cache-Pfad zurueck (file://) oder '' wenn nicht gecached.
+   *
+   *  Wrapper serialisiert aufeinanderfolgende Chunk-Calls via Promise-Queue —
+   *  sonst gabs bei kurzen Streams einen Race: final-Chunk konnte `end()` rufen
+   *  BEVOR der vorherige `start()` im Native-Modul fertig war. Der Writer-
+   *  Thread sah dann endRequested=true ohne jemals Chunks zu verarbeiten. */
+  private _pcmChunkQueue: Promise<any> = Promise.resolve();
   async handlePcmChunk(payload: {
     base64: string;
     sampleRate?: number;
@@ -453,12 +474,37 @@ class AudioService {
     chunk?: number;
     final?: boolean;
     silent?: boolean;
+  }): Promise<string> {
+    const p = this._pcmChunkQueue.then(() => this._handlePcmChunkImpl(payload)).catch(err => {
+      console.warn('[Audio] handlePcmChunk queued err:', err);
+      return '';
+    });
+    // Chain only on the side effect — callers still get the per-call result
+    this._pcmChunkQueue = p;
+    return p;
+  }
+
+  private async _handlePcmChunkImpl(payload: {
+    base64: string;
+    sampleRate?: number;
+    channels?: number;
+    messageId?: string;
+    chunk?: number;
+    final?: boolean;
+    silent?: boolean;
   }): Promise<string> {
     const silent = !!payload.silent;
     if (!silent && !PcmStreamPlayer) {
       console.warn('[Audio] PcmStreamPlayer Native Module nicht verfuegbar');
       return '';
     }
+    // Debug-Log bei Chunk 0 eines neuen Streams — damit man im adb logcat
+    // sieht warum der Auto-Playback greift oder nicht.
+    if ((payload.chunk ?? 0) === 0 && !this.pcmStreamActive) {
+      console.log('[Audio] PCM-Stream start: silent=%s messageId=%s sr=%s ch=%s',
+                  silent, payload.messageId || '(none)',
+                  payload.sampleRate, payload.channels);
+    }
 
     const messageId = payload.messageId || '';
     const sampleRate = payload.sampleRate || 24000;

android/src/services/updater.ts

@@ -29,6 +29,11 @@ class UpdateService {
   private downloading = false;
 
   constructor() {
+    // Beim Start alte APK-Reste aus dem Cache wegraeumen — wenn diese App
+    // laeuft, sind frueher heruntergeladene APKs entweder schon installiert
+    // oder unvollstaendig gewesen. Spart sonst pro Update 20-30MB auf dem Handy.
+    this.cleanupOldApks().catch(() => {});
+
     // Auf update_available Nachrichten lauschen
     rvs.onMessage((msg: RVSMessage) => {
       if (msg.type === 'update_available' as any) {
@@ -45,6 +50,30 @@ class UpdateService {
     });
   }
 
+  /** Raeumt alte heruntergeladene APK-Dateien aus dem Cache auf. */
+  private async cleanupOldApks(): Promise<void> {
+    try {
+      const files = await RNFS.readDir(RNFS.CachesDirectoryPath);
+      const apks = files.filter(f => /\.apk$/i.test(f.name));
+      let freed = 0;
+      for (const f of apks) {
+        try {
+          const size = parseInt(f.size as any, 10) || 0;
+          await RNFS.unlink(f.path);
+          freed += size;
+          console.log(`[Update] Alte APK geloescht: ${f.name} (${(size / 1024 / 1024).toFixed(1)}MB)`);
+        } catch (err: any) {
+          console.warn(`[Update] APK-Loeschen fehlgeschlagen: ${f.name} (${err?.message || err})`);
+        }
+      }
+      if (apks.length > 0) {
+        console.log(`[Update] Cleanup fertig: ${apks.length} APKs entfernt, ${(freed / 1024 / 1024).toFixed(1)}MB freigegeben`);
+      }
+    } catch (err: any) {
+      console.warn(`[Update] Cleanup-Fehler: ${err?.message || err}`);
+    }
+  }
+
   /** Bei App-Start Update pruefen */
   checkForUpdate(): void {
     if (this.checking) return;
@@ -111,6 +140,10 @@ class UpdateService {
         });
       });
 
+      // Vor dem Schreiben alte APKs im Cache wegraeumen — falls mehrere
+      // Updates in einer Session gezogen werden
+      await this.cleanupOldApks();
+
       // Base64 als APK-Datei speichern
       const destPath = `${RNFS.CachesDirectoryPath}/${apkData.fileName}`;
       await RNFS.writeFile(destPath, apkData.base64, 'base64');

bridge/aria_bridge.py

@@ -1176,7 +1176,7 @@ class ARIABridge:
             # Speed-Override (TTS-Wiedergabegeschwindigkeit, pro Geraet)
             try:
                 speed = float(payload.get("speed", 0) or 0)
-                if 0.25 <= speed <= 4.0:
+                if 0.1 <= speed <= 5.0:
                     self._next_speed_override = speed
             except (TypeError, ValueError):
                 pass
@@ -1236,7 +1236,7 @@ class ARIABridge:
             xtts_voice = payload.get("voice", "") or getattr(self, 'xtts_voice', '')
             try:
                 xtts_speed = float(payload.get("speed", 0) or 0)
-                if not (0.25 <= xtts_speed <= 4.0):
+                if not (0.1 <= xtts_speed <= 5.0):
                     xtts_speed = 1.0
             except (TypeError, ValueError):
                 xtts_speed = 1.0
@@ -1450,7 +1450,7 @@ class ARIABridge:
                 logger.info("[rvs] Voice-Override (via Audio): %s", voice_override)
             try:
                 speed = float(payload.get("speed", 0) or 0)
-                if 0.25 <= speed <= 4.0:
+                if 0.1 <= speed <= 5.0:
                     self._next_speed_override = speed
             except (TypeError, ValueError):
                 pass

diagnostic/index.html

@@ -145,6 +145,15 @@
       </div>
       <textarea id="voice-preview-text" rows="4"
         style="background:#0D0D1A;border:1px solid #2A2A3E;border-radius:6px;padding:10px;color:#fff;font-size:13px;resize:vertical;"></textarea>
+
+      <div style="display:flex;align-items:center;gap:10px;font-size:12px;color:#8888AA;">
+        <span style="min-width:120px;">Geschwindigkeit:</span>
+        <button onclick="adjustPreviewSpeed(-0.1)" class="btn secondary" style="padding:4px 10px;font-size:12px;">−0.1</button>
+        <span id="voice-preview-speed-value" style="min-width:52px;text-align:center;color:#fff;font-weight:600;">1.0 x</span>
+        <button onclick="adjustPreviewSpeed(0.1)" class="btn secondary" style="padding:4px 10px;font-size:12px;">+0.1</button>
+        <span style="color:#555570;font-size:11px;">(nur fuer dieses Modal, wird nicht gespeichert)</span>
+      </div>
+
       <div style="display:flex;gap:8px;align-items:center;">
         <button id="voice-preview-play" onclick="playVoicePreview()" class="btn primary" style="padding:8px 16px;">
           ▶ Abspielen
@@ -1630,10 +1639,29 @@
 
     // ── Voice Preview Modal ─────────────────────────
     const VOICE_PREVIEW_DEFAULT = 'Hallo, ich bin ARIA. Das hier ist ein kleiner Test damit du meine Stimme beurteilen kannst.';
+    const PREVIEW_SPEED_DEFAULT = 1.0;
+    const PREVIEW_SPEED_MIN = 0.1;
+    const PREVIEW_SPEED_MAX = 5.0;
     let currentPreviewVoice = '';
+    let currentPreviewSpeed = PREVIEW_SPEED_DEFAULT;
+
+    function _refreshPreviewSpeedLabel() {
+      const el = document.getElementById('voice-preview-speed-value');
+      if (el) el.textContent = currentPreviewSpeed.toFixed(1) + ' x';
+    }
+
+    function adjustPreviewSpeed(delta) {
+      const next = Math.round((currentPreviewSpeed + delta) * 10) / 10;
+      if (next < PREVIEW_SPEED_MIN || next > PREVIEW_SPEED_MAX) return;
+      currentPreviewSpeed = next;
+      _refreshPreviewSpeedLabel();
+    }
 
     function openVoicePreview(name) {
       currentPreviewVoice = name;
+      // Speed bei jedem Oeffnen zuruecksetzen — bewusst kein persist
+      currentPreviewSpeed = PREVIEW_SPEED_DEFAULT;
+      _refreshPreviewSpeedLabel();
       document.getElementById('voice-preview-name').textContent = name;
       // Text bei jedem Oeffnen zuruecksetzen
       document.getElementById('voice-preview-text').value = VOICE_PREVIEW_DEFAULT;
@@ -1658,7 +1686,12 @@
       }
       document.getElementById('voice-preview-status').textContent = '⏳ Rendere...';
       document.getElementById('voice-preview-play').disabled = true;
-      send({ action: 'preview_voice', voice: currentPreviewVoice, text });
+      send({
+        action: 'preview_voice',
+        voice: currentPreviewVoice,
+        text,
+        speed: currentPreviewSpeed,
+      });
     }
 
     function deleteXttsVoice(name) {

diagnostic/server.js

@@ -1469,7 +1469,7 @@ wss.on("connection", (ws) => {
       } else if (msg.action === "test_tts") {
         handleTestTTS(ws, msg.text || "Test");
       } else if (msg.action === "preview_voice") {
-        handleVoicePreview(ws, msg.voice || "", msg.text || "Hallo.");
+        handleVoicePreview(ws, msg.voice || "", msg.text || "Hallo.", msg.speed);
       } else if (msg.action === "check_tts") {
         handleCheckTTS(ws);
       } else if (msg.action === "check_desktop") {
@@ -1704,8 +1704,11 @@ function _handlePreviewChunk(payload) {
   }
 }
 
-async function handleVoicePreview(clientWs, voice, text) {
+async function handleVoicePreview(clientWs, voice, text, speed) {
   try {
+    // Speed clampen — Browser-Slider ist 0.1-5.0
+    let spd = parseFloat(speed);
+    if (!isFinite(spd) || spd < 0.1 || spd > 5.0) spd = 1.0;
     const requestId = crypto.randomUUID();
     _previewPending.set(requestId, { clientWs, chunks: [], sampleRate: 0, channels: 0 });
     // Timeout safety net
@@ -1720,10 +1723,10 @@ async function handleVoicePreview(clientWs, voice, text) {
         }
       }
     }, 60000);
-    log("info", "server", `Voice-Preview: voice="${voice}" text="${text.slice(0, 60)}"`);
+    log("info", "server", `Voice-Preview: voice="${voice}" speed=${spd.toFixed(1)}x text="${text.slice(0, 60)}"`);
     sendToRVS_raw({
       type: "xtts_request",
-      payload: { text, language: "de", requestId, voice, speed: 1.0 },
+      payload: { text, language: "de", requestId, voice, speed: spd },
       timestamp: Date.now(),
     });
   } catch (err) {

xtts/f5tts/bridge.py

@@ -762,7 +762,7 @@ async def run_loop(runner: F5Runner) -> None:
                                 speed = float(payload.get("speed") or 1.0)
                             except (TypeError, ValueError):
                                 speed = 1.0
-                            if not (0.25 <= speed <= 4.0):
+                            if not (0.1 <= speed <= 5.0):
                                 speed = 1.0
                             await _tts_queue.put((
                                 payload.get("text", ""),