updated CHANGELOG and fix GladiaSTTService formatting

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added `speech_threshold` parameter to `GladiaSTTService`.
+
 - Allow passing user (`user_kwargs`) and assistant (`assistant_kwargs`) context
   aggregator parameters when using `create_context_aggregator()`. The values are
   passed as a mapping that will then be converted to arguments.

src/pipecat/services/gladia.py

@@ -136,7 +136,8 @@ class GladiaSTTService(STTService):
         maximum_duration_without_endpointing: Optional[int] = 10
         audio_enhancer: Optional[bool] = None
         words_accurate_timestamps: Optional[bool] = None
-        speech_threshold: Optional[float] = .99
+        speech_threshold: Optional[float] = 0.99
+
     def __init__(
         self,
         *,