
Movie
20 Hz
Human hearing is capable of detecting sound waves between 20 and 20.000 Hz. … merely a small fraction of the frequency spectrum. Most sounds around us go unnoticed.
Cast
Where to watch
Streaming availability via JustWatch.
Watched by
People you follow who marked this watched.
Sign in to see which friends watched this.
Private notes
Sign in to keep personal notes on this title.
You might also like












