fixing deepgram mismatch

CHANGELOG.md

@@ -50,6 +50,10 @@ stt = DeepgramSTTService(..., live_options=LiveOptions(model="nova-2-general"))
 - Fixed a `STTMuteFilter` issue that would not mute user audio frames causing
   transcriptions to be generated by the STT service.
 
+- Fixes an issue in `DeepgramSTTService` where `sample_rate` passed to the
+  `LiveOptions` was not being used, causing the service to use the default 
+  sample rate of pipeline.
+
 ### Other
 
 - Added Gemini support to `examples/phone-chatbot`.

src/pipecat/services/deepgram.py

@@ -124,6 +124,7 @@ class DeepgramSTTService(STTService):
         addons: Optional[Dict] = None,
         **kwargs,
     ):
+        sample_rate = sample_rate or (live_options.sample_rate if live_options else None)
         super().__init__(sample_rate=sample_rate, **kwargs)
 
         default_options = LiveOptions(