howl

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howl

Electronics an unwanted prolonged high-pitched sound produced by a sound-producing system as a result of feedback

howl

[hau̇l]
(engineering acoustics)
Undesirable prolonged sound produced by a radio receiver or audio-frequency amplifier system because of either electric or acoustic feedback.
References in periodicals archive ?
Jim and I awoke in the middle of the night to the sound of the wind howling down through the valley.
A thunderstorm fit to shake even Samson and Goliath - the towering Harland and Wolfe shipyard cranes which continue to dominate the city's skyline - was howling down the River Lagan from Belfast Lough.
ANOTHER ICY WINTER COMES HOWLING DOWN FROM THE NORTH.
Munch's Scream, howling down fifteen, harsh years--
And it's a pity the Hampden crowd when they were howling down the referee's decision didn't have the benefit of video replays to assist them with their judgement.
Meltham's keeper insisted on hoofing the ball high into the air at every opportunity, only to see the tempest howling down from Totties depositing the ball back at his feet ten seconds later - but Scholes still couldn't score.