Create tts_handler.py

tts_handler.py

@@ -0,0 +1,29 @@
+# rentbot/tts_handler.py
+import os
+from elevenlabs.client import AsyncElevenLabs
+from elevenlabs import stream
+
+client = AsyncElevenLabs(api_key=os.getenv("ELEVENLABS_API_KEY"))
+
+async def text_to_speech_stream(text_iterator):
+    """
+    Streams text to ElevenLabs and yields audio chunks.
+    Twilio requires audio in 8-bit μ-law format.
+    """
+    voice_id = os.getenv("ELEVENLABS_VOICE_ID", "21m00Tcm4TlvDq8ikWAM")
+    
+    try:
+        audio_stream = await client.generate(
+            model="eleven_turbo_v2",
+            voice=voice_id,
+            text=text_iterator,
+            stream=True,
+            output_format="ulaw_8000", # Critical for Twilio
+        )
+        
+        # Stream the audio chunks
+        async for chunk in audio_stream:
+            yield chunk
+            
+    except Exception as e:
+        print(f"Error in TTS stream: {e}")