20 Hz

20 Hz

Released PG 5 min 5.3/10 Votes: 33
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.
Type:
Movie
Genre:
,
Release:
2015-05-19
Year:
Country:
Language:
English
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