← Back to search

Meaning of sub-audio frequency | Babel Free

Noun CEFR B2

Definitions

A frequency of sound waves below human hearing range.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

sub-bass sub-bassline Sub-Boreal sub-brown dwarf Sub-Carpathian Rus sub-category