新交互逻辑，长按/短按

takway/audio_utils.py

@@ -396,7 +396,7 @@ except:
     webrtcvad_available = False
 
 class VADRecorder(HDRecorder):
-    def __init__(self, vad_sensitivity=0, frame_duration=30, vad_buffer_size=7, min_act_time=1,**kwargs):
+    def __init__(self, vad_sensitivity=0, frame_duration=30, vad_buffer_size=7, min_act_time=0.3,**kwargs):
         super().__init__(**kwargs)
         if webrtcvad_available:
             self.vad = webrtcvad.Vad(vad_sensitivity)