Noise
Noise is unwanted sound judged to be unpleasant, loud or disruptive to hearing. From a physics standpoint, noise is indistinguishable from sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound.Acoustic noise is any sound in the acoustic domain, either deliberate (e.g., music or speech) or unintended. In contrast, noise in electronics may not be audible to the human ear and may require instruments for detection.In audio engineering, noise can refer to the unwanted residual electronic noise signal that gives rise to acoustic noise heard as a hiss. This signal noise is commonly measured using A-weighting or ITU-R 468 weighting.In experimental sciences, noise can refer to any random fluctuations of data that hinders perception of a signal.
Noise (noun)
Various sounds, usually unwanted or unpleasant.
“He knew that it was trash day, when the garbage collectors made all the noise.”
Noise (noun)
Sound or signal generated by random fluctuations.
Noise (noun)
Unwanted part of a signal.
“signal-to-noise ratio”
Noise (noun)
Unwanted fuss or bustle; useless activity.
Noise (noun)
The measured level of variation in gene expression among cells, regardless of source, within a supposedly identical population.
Noise (noun)
Rumour or complaint.
“The problems with the new computer system are causing a lot of noise at Head Office.”
Noise (noun)
Music, in general; a concert; also, a company of musicians; a band.
Noise (noun)
A genre of rock music that uses static and other non-musical sounds, also influenced by art rock.
Noise (verb)
To make a noise; to sound.
Noise (verb)
To spread news of; to spread as rumor or gossip.
Racket (noun)
A racquet: an implement with a handle connected to a round frame strung with wire, sinew, or plastic cords, and used to hit a ball, such as in tennis or a birdie in badminton.
Racket (noun)
A snowshoe formed of cords stretched across a long and narrow frame of light wood.
Racket (noun)
A broad wooden shoe or patten for a man or horse, to allow walking on marshy or soft ground.
Racket (noun)
A loud noise.
“Power tools work quickly, but they sure make a racket.”
“With all the racket they’re making, I can’t hear myself think!”
“What’s all this racket?”
Racket (noun)
A fraud or swindle; an illegal scheme for profit.
“They had quite a racket devised to relieve customers of their money.”
Racket (noun)
A carouse; any reckless dissipation.
Racket (noun)
Something taking place considered as exciting, trying, unusual, etc. or as an ordeal.
Racket (verb)
To strike with, or as if with, a racket.
Racket (verb)
To make a clattering noise.
Racket (verb)
To be dissipated; to carouse.
Noise (noun)
a sound, especially one that is loud or unpleasant or that causes disturbance
“making a noise like a pig”
“what’s that rustling noise outside the door?”
Noise (noun)
a series or combination of loud, confused sounds, especially when causing disturbance
“vibration and noise from traffic”
“she was dazed with the heat and noise”
Noise (noun)
conventional remarks made to express something
“the government made tough noises about defending sterling”
Noise (noun)
irregular fluctuations that accompany a transmitted electrical signal but are not part of it and tend to obscure it
“the enhancer can improve the video signal quality, reducing noise and increasing image sharpness”
Noise (noun)
random fluctuations that obscure or do not contain meaningful data or other information
“over half the magnitude of the differences came from noise in the data”
Noise (verb)
talk about or make known publicly
“you’ve discovered something that should not be noised about”
Noise (verb)
make much noise
“rook, crow and jackdaw—noising loud”
Racket (noun)
a bat with a round or oval frame strung with catgut, nylon, etc., used especially in tennis, badminton, and squash
“a squash racket”
Racket (noun)
a snowshoe resembling a racket.
Racket (noun)
a loud unpleasant noise; a din
“the kids were making a racket”
Racket (noun)
the noise and liveliness of fashionable society.
Racket (noun)
an illegal or dishonest scheme for obtaining money
“a protection racket”
Racket (noun)
a person’s line of business or way of life
“I’m in the insurance racket”
Racket (verb)
make or move with a loud unpleasant noise
“trains racketed by”
Racket (verb)
enjoy oneself socially; go in pursuit of pleasure or entertainment
“a fabulous car for racketing around Paris”