diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7bf00326d..9badb6c70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- `DailyTransport` now supports setting the audio bitrate to improve audio
+  quality through the `DailyParams.audio_out_bitrate` parameter. The new
+  default is 96kbps.
+
+- `DailyTransport` now uses the number of audio output channels (1 or 2) to set
+  mono or stereo audio when needed.
+
+- Interruptions support has been added to `TwilioFrameSerializer` when using
+  `FastAPIWebsocketTransport`.
+
 - Added new `LmntTTSService` text-to-speech service.
   (see https://www.lmnt.com/)
 
@@ -32,6 +42,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   big chunk (i.e. from when the user starts speaking until the user stops
   speaking) instead of a continous stream.
 
+### Fixed
+
+- `StartFrame` should be the first frame every processor receives to avoid
+  situations where things are not initialized (because initialization happens on
+  `StartFrame`) and other frames come in resulting in undesired behavior.
+
+### Performance
+
+- `obj_id()` and `obj_count()` now use `itertools.count` avoiding the need of
+  `threading.Lock`.
+
 ## [0.0.41] - 2024-08-22
 
 ### Added
diff --git a/examples/dialin-chatbot/requirements.txt b/examples/dialin-chatbot/requirements.txt
index 38a0a93b0..e59a9c3d2 100644
--- a/examples/dialin-chatbot/requirements.txt
+++ b/examples/dialin-chatbot/requirements.txt
@@ -3,3 +3,4 @@ fastapi
 uvicorn
 python-dotenv
 twilio
+python-multipart
diff --git a/src/pipecat/processors/aggregators/llm_response.py b/src/pipecat/processors/aggregators/llm_response.py
index 7c38e62ad..ab0552578 100644
--- a/src/pipecat/processors/aggregators/llm_response.py
+++ b/src/pipecat/processors/aggregators/llm_response.py
@@ -109,7 +109,7 @@ class LLMResponseAggregator(FrameProcessor):
             await self.push_frame(frame, direction)
         elif isinstance(frame, self._accumulator_frame):
             if self._aggregating:
-                self._aggregation += f" {frame.text}"
+                self._aggregation += f" {frame.text}" if self._aggregation else frame.text
                 # We have recevied a complete sentence, so if we have seen the
                 # end frame and we were still aggregating, it means we should
                 # send the aggregation.
diff --git a/src/pipecat/transports/base_transport.py b/src/pipecat/transports/base_transport.py
index 72e609263..083aeac37 100644
--- a/src/pipecat/transports/base_transport.py
+++ b/src/pipecat/transports/base_transport.py
@@ -32,6 +32,7 @@ class TransportParams(BaseModel):
     audio_out_is_live: bool = False
     audio_out_sample_rate: int = 16000
     audio_out_channels: int = 1
+    audio_out_bitrate: int = 96000
     audio_in_enabled: bool = False
     audio_in_sample_rate: int = 16000
     audio_in_channels: int = 1
diff --git a/src/pipecat/transports/services/daily.py b/src/pipecat/transports/services/daily.py
index bb6032fa4..7cf330b9e 100644
--- a/src/pipecat/transports/services/daily.py
+++ b/src/pipecat/transports/services/daily.py
@@ -366,6 +366,12 @@ class DailyTransportClient(EventHandler):
                                 }
                             },
                         }
+                    },
+                    "microphone": {
+                        "sendSettings": {
+                            "channelConfig": "stereo" if self._params.audio_out_channels == 2 else "mono",
+                            "bitrate": self._params.audio_out_bitrate,
+                        }
                     }
                 },
             })