20 Hz
20 Hz
Watch 20 hz Bombuj. 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.
- Žánr: Horor
- Země: United Kingdom
- Ředitel: Chris Keller
- Obsazení: Alix Wilton Regan,
