The simulated sound of unmanned sleeping scene is small.

Does the subject want to ask, "Why is the simulated sound of the scene without sound to help sleep so low?" This is because the volume setting of the sound source is too small and the volume setting of the playback device is too small.

1. Sound source volume setting is too small: in the setting of analog sound, it may be that the volume setting of the sound source itself is too small, resulting in a relatively low sound.

2. The volume setting of the playback device is too small: On devices that play analog sound, such as smart speakers or mobile phones, the volume setting of the device may be too small, and the volume of the device needs to be adjusted.