adjective, adverb, preposition

if you can hear one sound above other sounds, it is louder or higher than the other sounds

adjective

relating to sound and the way people hear things

noun

the way that sound is heard in a room, as a result of the room’s shape and size

adjective

loud enough for people to hear

adjective

relating to sound that is recorded or broadcast

noun

sound, especially music, that is recorded, broadcast, or played on electronic equipment

prefix

sound or hearing: used with some adjectives and nouns

if the sound on a radio or mobile phone breaks up, you can no longer hear the person who is speaking on it

abbreviation

decibel

noun

a unit for measuring how loud a sound is

noun

the low and loud quality of a sound

adjective

recorded or broadcast on a mono system

adjective

relating to sound

adjective

quadraphonic

adjective

a quadraphonic sound system divides music or other sound into four different parts and plays each part through a separate speaker

another spelling of quadraphonic

noun

if a sound has resonance, it is deep and clear and continues for a long time

adjective

relating to sound or sound waves

noun

energy that travels through air or water and that a human ear can hear

adjective

designed to stop sound from entering or leaving

verb

to make a room or other space soundproof

noun

a movement in the air that carries sound to your ear

adjective

using an electronic system in which sound is played through two speakers

adjective

stereo

adjective

relating to the tone of something, especially a colour or sound

adjective

ultrasonic sounds are sounds that humans cannot hear because they have very high frequencies

noun

the loudness of a sound from a television, radio etc

noun

the way in which sound, light, a radio signal etc travels. It is represented by a line that curves upwards and then downwards again many times.

noun

the distance between two waves of sound or light that are next to each other

adverb

adverb

noun

adverb

if something is said in your hearing, you hear it, although the speaker is not talking to you

recorded or broadcast using a system that sends the sound through two speakers

a sound in the background can be heard in addition to the main thing you are listening to

if sound waves or light waves are in phase, their high points and low points come at the same time. If they are out of phase, they come at different times.