diff --git a/android/src/services/audio.ts b/android/src/services/audio.ts
index d21881a..49cdc98 100644
--- a/android/src/services/audio.ts
+++ b/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> {
diff --git a/bridge/aria_bridge.py b/bridge/aria_bridge.py
index e824668..368ebf1 100644
--- a/bridge/aria_bridge.py
+++ b/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
diff --git a/xtts/f5tts/bridge.py b/xtts/f5tts/bridge.py
index 5677da2..12f6015 100644
--- a/xtts/f5tts/bridge.py
+++ b/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", ""),