![20 Hz](https://image.tmdb.org/t/p/w342/iC1ts8Mp1KYdH2h3TfRRoXRmbbH.jpg)
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.
- Year: 2015
- Country: United Kingdom
- Genre: Horror
- Studio:
- Keyword: short film
- Director: Chris Keller
- Cast: Alix Wilton Regan