wyświetlenia
0:33
Relaxing box fan on high speed sounds with decibel meter.
3:59:41
Underwater Metronome for Sleep, Relaxation / Underwater Ambient , HQ Audio, Binaural, 4HRS 4K
0:12
Propagation of Electromagnetic Wave #electromagnetism #physics #science #shorts
1:01
Protect Yourself With This NOISE LEVEL MONITOR #arduino #science #technology #projects #tech
0:07
Piano practice
0:19
#sound pollution object#loud sound#hard sound #car #speakrr#stepbystep #easy #AZ art techniques
0:47
Practice of Music Loud and Soft Sound
0:57
White noise safety in the nursery
