Merge pull request #1641 from pipecat-ai/mb/11labs-input-params

ElevenLabs: InputParams can be set individually

CHANGELOG.md

@@ -20,6 +20,10 @@ https://en.wikipedia.org/wiki/Saint_George%27s_Day_in_Catalonia
 
 ### Changed
 
+- The `InputParams` for `ElevenLabsTTSService` and `ElevenLabsHttpTTSService`
+  no longer require that `stability` and `similarity_boost` be set. You can
+  individually set each param.
+
 - In `TwilioFrameSerializer`, `call_sid` is Optional so as to avoid a breaking
   changed. `call_sid` is required to automatically hang up.
 

src/pipecat/services/elevenlabs/tts.py

@@ -126,31 +126,14 @@ def build_elevenlabs_voice_settings(
         settings: Dictionary containing voice settings parameters
 
     Returns:
-        Dictionary of voice settings or None if required parameters are missing
+        Dictionary of voice settings or None if no valid settings are provided
     """
+    voice_setting_keys = ["stability", "similarity_boost", "style", "use_speaker_boost", "speed"]
+
     voice_settings = {}
-    if settings["stability"] is not None and settings["similarity_boost"] is not None:
+    for key in voice_setting_keys:
-        voice_settings["stability"] = settings["stability"]
+        if key in settings and settings[key] is not None:
-        voice_settings["similarity_boost"] = settings["similarity_boost"]
+            voice_settings[key] = settings[key]
-        if settings["style"] is not None:
-            voice_settings["style"] = settings["style"]
-        if settings["use_speaker_boost"] is not None:
-            voice_settings["use_speaker_boost"] = settings["use_speaker_boost"]
-        if settings["speed"] is not None:
-            voice_settings["speed"] = settings["speed"]
-    else:
-        if settings["style"] is not None:
-            logger.warning(
-                "'style' is set but will not be applied because 'stability' and 'similarity_boost' are not both set."
-            )
-        if settings["use_speaker_boost"] is not None:
-            logger.warning(
-                "'use_speaker_boost' is set but will not be applied because 'stability' and 'similarity_boost' are not both set."
-            )
-        if settings["speed"] is not None:
-            logger.warning(
-                "'speed' is set but will not be applied because 'stability' and 'similarity_boost' are not both set."
-            )
 
     return voice_settings or None