n. 音响效果, 声学

[化] 声学

[医] 声学

[ noun ]
the study of the physical properties of sound
<noun.cognition>

Acoustics \A*cous"tics\ (#; 277), n. [Names of sciences in -ics,
as, acoustics, mathematics, etc., are usually treated as
singular. See {-ics}.] (Physics.)
The science of sounds, teaching their nature, phenomena, and
laws.

Acoustics, then, or the science of sound, is a very
considerable branch of physics. --Sir J.
Herschel.

Note: The science is, by some writers, divided, into
diacoustics, which explains the properties of sounds
coming directly from the ear; and catacoustica, which
treats of reflected sounds or echoes.