Add voice options and make to use InputParams for Cartesia.

examples/foundational/07d-interruptible-cartesia.py

@@ -52,7 +52,9 @@ async def main():
         tts = CartesiaTTSService(
             api_key=os.getenv("CARTESIA_API_KEY"),
             voice_id="a0e99841-438c-4a64-b679-ae501e7d6091",  # Barbershop Man
-            sample_rate=44100,
+            params=CartesiaTTSService.InputParams(
+                sample_rate=44100,
+            ),
         )
 
         llm = OpenAILLMService(

examples/foundational/12c-describe-video-anthropic.py

@@ -78,7 +78,9 @@ async def main():
         tts = CartesiaTTSService(
             api_key=os.getenv("CARTESIA_API_KEY"),
             voice_id="79a125e8-cd45-4c13-8a67-188112f4dd22",  # British Lady
-            sample_rate=16000,
+            params=CartesiaTTSService.InputParams(
+                sample_rate=16000,
+            ),
         )
 
         @transport.event_handler("on_first_participant_joined")

examples/studypal/studypal.py

@@ -124,7 +124,9 @@ async def main():
             api_key=os.getenv("CARTESIA_API_KEY"),
             voice_id=os.getenv("CARTESIA_VOICE_ID", "4d2fd738-3b3d-4368-957a-bb4805275bd9"),
             # British Narration Lady: 4d2fd738-3b3d-4368-957a-bb4805275bd9
-            sample_rate=44100,
+            params=CartesiaTTSService.InputParams(
+                sample_rate=44100,
+            ),
         )
 
         llm = OpenAILLMService(