refactor: replace Qwen 1.7B with Qwen3-TTS 0.6B as default Qwen TTS engine

qwen_tts_service.py

@@ -1,7 +1,7 @@
 """qwen_tts_service.py
 
 Qwen3-TTS Service for Pipecat using MLX on Apple Silicon.
-Provides local speech synthesis using Alibaba Qwen3-TTS 1.7B
+Provides local speech synthesis using Alibaba Qwen3-TTS 0.6B
 with zero-shot voice cloning capabilities via mlx-audio.
 """
 

test_qwen_tts_service.py

@@ -1,7 +1,7 @@
 """test_qwen_tts_service.py
 
 Unit test for QwenTTSService.
-Verifies loading MLX Qwen3-TTS 1.7B model and generating audio frames.
+Verifies loading MLX Qwen3-TTS 0.6B model and generating audio frames.
 """
 
 import asyncio
@@ -10,11 +10,11 @@ from pipecat.frames.frames import TTSAudioRawFrame
 
 
 async def main():
-    print("Testing QwenTTSService with MLX Qwen3-TTS 1.7B...")
+    print("Testing QwenTTSService with MLX Qwen3-TTS 0.6B...")
     service = QwenTTSService(voice="qwen_jv")
 
     frames = []
-    async for frame in service.run_tts("Hello! This is a test of Qwen 1.7B TTS service.", context_id="test_ctx"):
+    async for frame in service.run_tts("Hello! This is a test of Qwen 0.6B TTS service.", context_id="test_ctx"):
         frames.append(frame)
 
     assert len(frames) > 0, "No frames generated by QwenTTSService"

voice_manager.py

@@ -31,7 +31,7 @@ KOKORO_VOICES = {
     "bm_stuart": "British Male - Stuart Bell",
     "custom_pocket": "Pocket Voice Clone (Default)",
     "jv_pocket": "JV Voice Profile (Kyutai Pocket TTS)",
-    "qwen_jv": "JV Voice Profile (MLX Qwen 1.7B TTS)",
+    "qwen_jv": "JV Voice Profile (MLX Qwen 0.6B TTS)",
 }
 
 MACOS_VOICES = {
@@ -74,6 +74,9 @@ VOICE_ALIASES = {
     "jv voice": "jv_pocket",
     "qwen": "qwen_jv",
     "qwen_jv": "qwen_jv",
+    "qwen 0.6b": "qwen_jv",
+    "qwen_0.6b": "qwen_jv",
+    "qwen0.6b": "qwen_jv",
     "qwen 1.7b": "qwen_jv",
     "qwen3": "qwen_jv",
 }