noise gate

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الإنجليزية - الإنجليزية
(Mühendislik) A Noise Gate is an electronic device or software logic that is used to control the volume of an audio signal. They are commonly used in the recording studio and sound reinforcement. Small portable units are also used by rock musicians to control unwanted noise from their amplification systems. Band-limited noise gates are also used to eliminate background noise from audio recordings by eliminating frequency bands that contain only static
An amplifier that has a zero output until the input level exceeds a chosen threshold level Translation: it takes a signal, and if the signal isn't loud enough, it won't let it out If the signal is loud enough (over the threshold value), the noise gate will let the signal through
A device that attenuates a signal when the program level falls below a preset threshold
A piece of sound processing equipment that reduces background noise by muting a sound signal when it falls below a certain level, restoring it when the level increases again Must be used on vocal microphones with care, because it may cut the signal off, although the vocalist is still singing quietly Also known as an Expander
A device that entirely turns off the audio when the audio goes below a pre-set level That way random noise will not be heard on the output because the only time the system is turned on is when there is wanted sound that drowns out the noise
An audio processing device that can lower the amplitude of a weak incoming signal to effectively mute the signal altogether The gate can be set to close at a level that is just above the "Noise floor", which means that as soon as the main signal stops (say the narrator stops speaking), the gate will close the input The result will be less noise in the system, since the input will not be open for recording on noise as long as there is no strong input signal Excessive or incorrect use of noise gate may lead to a side-effect known as "gating" Gating is a sound artefact that can be annoying to listen to or even ruin the overall impression of the sound in a bad case
A circuit that reduces the output level when no signal is coming through, thereby reducing noise and increasing the signal-to-noise ratio
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noise gate
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