addes speed config for voice

bridge/aria_bridge.py

@@ -38,6 +38,7 @@ import websockets
 from faster_whisper import WhisperModel
 from openwakeword.model import Model as WakeWordModel
 from piper import PiperVoice
+from piper.config import SynthesisConfig
 
 from modes import Mode, detect_mode_switch, should_speak
 
@@ -131,6 +132,7 @@ class VoiceEngine:
         self.voices: dict[str, PiperVoice] = {}
         self.default_voice = "ramona"
         self.highlight_voice = "thorsten"
+        self.speech_speed = 1.0  # 0.5 = langsam, 1.0 = normal, 2.0 = schnell
 
     def initialize(self) -> None:
         """Laedt die Piper-Stimmen aus dem Voices-Verzeichnis."""
@@ -216,8 +218,9 @@ class VoiceEngine:
                     continue
                 with tempfile.NamedTemporaryFile(suffix=".wav", delete=False) as tmp:
                     tmp_path = tmp.name
+                syn_config = SynthesisConfig(length_scale=1.0 / max(0.3, self.speech_speed))
                 with wave.open(tmp_path, "wb") as wav_file:
-                    voice.synthesize_wav(sentence, wav_file)
+                    voice.synthesize_wav(sentence, wav_file, syn_config=syn_config)
                 with wave.open(tmp_path, "rb") as wav_file:
                     if sample_rate is None:
                         sample_rate = wav_file.getframerate()
@@ -494,6 +497,7 @@ class ARIABridge:
                     vc = json.load(f)
                 self.voice_engine.default_voice = vc.get("defaultVoice", "ramona")
                 self.voice_engine.highlight_voice = vc.get("highlightVoice", "thorsten")
+                self.voice_engine.speech_speed = vc.get("speechSpeed", 1.0)
                 self.tts_enabled = vc.get("ttsEnabled", True)
                 logger.info("Voice-Config geladen: %s", vc)
         except Exception as e:
@@ -1024,6 +1028,10 @@ class ARIABridge:
                 self.tts_enabled = bool(payload["ttsEnabled"])
                 logger.info("[rvs] TTS %s", "aktiviert" if self.tts_enabled else "deaktiviert")
                 changed = True
+            if "speechSpeed" in payload:
+                self.voice_engine.speech_speed = max(0.3, min(2.0, float(payload["speechSpeed"])))
+                logger.info("[rvs] Sprechgeschwindigkeit: %.1f", self.voice_engine.speech_speed)
+                changed = True
             # Persistent speichern in Shared Volume
             if changed:
                 try:
@@ -1032,6 +1040,7 @@ class ARIABridge:
                         "defaultVoice": self.voice_engine.default_voice,
                         "highlightVoice": self.voice_engine.highlight_voice,
                         "ttsEnabled": getattr(self, "tts_enabled", True),
+                        "speechSpeed": self.voice_engine.speech_speed,
                     }
                     with open("/shared/config/voice_config.json", "w") as f:
                         json.dump(config_data, f, indent=2)