integrate eleven labs

vocode/turn_based/synthesizer/eleven_labs_synthesizer.py

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+import io
+import os
+from typing import Optional
+from pydub import AudioSegment
+import requests
+from vocode.turn_based.synthesizer.base_synthesizer import BaseSynthesizer
+
+ELEVEN_LABS_BASE_URL = "https://api.elevenlabs.io/v1/"
+
+
+class ElevenLabsSynthesizer(BaseSynthesizer):
+    def __init__(self, voice_id: str, api_key: Optional[str] = None):
+        self.voice_id = voice_id
+        self.api_key = os.getenv("ELEVEN_LABS_API_KEY", api_key)
+
+    def synthesize(self, text: str) -> AudioSegment:
+        url = ELEVEN_LABS_BASE_URL + f"text-to-speech/{self.voice_id}"
+        headers = {"xi-api-key": self.api_key, "voice_id": self.voice_id}
+        body = {
+            "text": text,
+        }
+        response = requests.post(url, headers=headers, json=body)
+        assert response.ok, response.text
+        return AudioSegment.from_mp3(io.BytesIO(response.content))