feat: Sprechgeschwindigkeit-Range auf 0.1-5.0 erweitert

TTS_SPEED_MIN 0.5 → 0.1, TTS_SPEED_MAX 2.0 → 5.0.
Bridge-seitige Validierungen (aria_bridge.py + f5tts/bridge.py) mit-
gezogen auf den gleichen Bereich.

Hinweis: Extremwerte (unter 0.5 oder ueber 2.0) koennen bei F5-TTS
verzerrte Ausgaben produzieren — Stefan bekommt die Freiheit zum
Experimentieren.

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

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;
+      if (audioService.getRecordingState() !== 'recording') return;
-      setIsRecording(false);
       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 () => {
@@ -136,17 +142,23 @@ 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 (disabled || tapBusy.current) return;
-    if (isRecording) {
+    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
-      setIsRecording(false);
         const result = await audioService.stopRecording();
+        setIsRecording(false);
         if (result && result.durationMs > 300) {
           onRecordingComplete(result);
         }
-    } else {
+      } else if (svcState === 'idle') {
         // Aufnahme mit Auto-Stop starten
         const started = await audioService.startRecording(true);
         if (started) {
@@ -154,6 +166,12 @@ const VoiceButton: React.FC<VoiceButtonProps> = ({
           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;
+    }
   };
 
   // Expose startAutoRecording via ref fuer Wake Word

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_MIN = 0.1;
-export const TTS_SPEED_MAX = 2.0;
+export const TTS_SPEED_MAX = 5.0;
 export const TTS_SPEED_STORAGE_KEY = 'aria_tts_speed';
 
 export async function loadTtsSpeed(): Promise<number> {
@@ -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`);
+            fireSilenceOnce(`VAD ${silenceDuration}ms Stille`);
-            this.silenceListeners.forEach(cb => cb());
           }
         }, 200);
         // Notbremse: Nach MAX_RECORDING_MS zwangsweise stoppen
         this.maxDurationTimer = setTimeout(() => {
-          console.warn(`[Audio] Max-Dauer ${MAX_RECORDING_MS}ms erreicht — Zwangs-Stop`);
+          fireSilenceOnce(`Max-Dauer ${MAX_RECORDING_MS}ms`);
-          this.silenceListeners.forEach(cb => cb());
         }, MAX_RECORDING_MS);
       }
 
       // Conversation-Window: Wenn der User innerhalb noSpeechTimeoutMs nicht
-      // anfaengt zu sprechen → Aufnahme abbrechen (Speech-Gate verwirft sie),
+      // anfaengt zu sprechen → Aufnahme abbrechen (Speech-Gate verwirft sie).
-      // ChatScreen erkennt das und beendet die Konversation.
       if (noSpeechTimeoutMs > 0) {
         this.noSpeechTimer = setTimeout(() => {
           if (!this.speechDetected && this.recordingState === 'recording') {
-            console.log(`[Audio] Conversation-Window ${noSpeechTimeoutMs}ms ohne Sprache — Stop`);
+            fireSilenceOnce(`Conversation-Window ${noSpeechTimeoutMs}ms ohne Sprache`);
-            this.silenceListeners.forEach(cb => cb());
           }
         }, noSpeechTimeoutMs);
       }

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

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", ""),