How to turn off flutter camera plugin shutter sound?

I'm using flutter camera plugin for taking pictures. But I couldn't turn off the shutter sound. I tried

_camera = CameraController(
  cameras[0],
  ResolutionPreset.high,
  imageFormatGroup: ImageFormatGroup.yuv420,
  enableAudio: false
);

But I think enableAudio is for videos. How can I turn off the shutter sound?