removing resampling

src/pipecat/serializers/exotel.py

@@ -11,7 +11,6 @@ from typing import Optional
 from loguru import logger
 from pydantic import BaseModel
 
-from pipecat.audio.utils import create_default_resampler
 from pipecat.frames.frames import (
     AudioRawFrame,
     Frame,
@@ -58,13 +57,12 @@ class ExotelFrameSerializer(FrameSerializer):
             params: Configuration parameters.
         """
         self._stream_sid = stream_sid
+        self._call_sid = call_sid
         self._params = params or ExotelFrameSerializer.InputParams()
 
         self._exotel_sample_rate = self._params.exotel_sample_rate
         self._sample_rate = 0  # Pipeline input rate
 
-        self._resampler = create_default_resampler()
-
     @property
     def type(self) -> FrameSerializerType:
         """Gets the serializer type.
@@ -97,13 +95,8 @@ class ExotelFrameSerializer(FrameSerializer):
             answer = {"event": "clear", "streamSid": self._stream_sid}
             return json.dumps(answer)
         elif isinstance(frame, AudioRawFrame):
-            data = frame.audio
-
-            # Resample the audio data
-            serialized_data = await self._resampler.resample(
-                data, frame.sample_rate, self._exotel_sample_rate
-            )
-            payload = base64.b64encode(serialized_data).decode("ascii")
+            # Audio data is now directly used without resampling
+            payload = base64.b64encode(frame.audio).decode("ascii")
 
             answer = {
                 "event": "media",
@@ -132,18 +125,13 @@ class ExotelFrameSerializer(FrameSerializer):
 
         if message["event"] == "media":
             payload_base64 = message["media"]["payload"]
-            payload = base64.b64decode(payload_base64)
-
-            deserialized_data = await self._resampler.resample(
-                payload,
-                self._exotel_sample_rate,
-                self._sample_rate,
-            )
+            audio_data = base64.b64decode(payload_base64)
 
+            # Audio data is now directly used without resampling
             audio_frame = InputAudioRawFrame(
-                audio=deserialized_data,
-                num_channels=1,
-                sample_rate=self._sample_rate,
+                audio=audio_data,
+                num_channels=1,  # Assuming mono audio from Exotel
+                sample_rate=self._sample_rate,  # Use the configured pipeline input rate
             )
             return audio_frame
         elif message["event"] == "dtmf":