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An Alesis Micro Gate noise gate. A noise gate or simply gate is an electronic device or software that is used to control the volume of an audio signal.Comparable to a limiter, which attenuates signals above a threshold, such as loud attacks from the start of musical notes, noise gates attenuate signals that register below the threshold. [1]
For example, in live sound reinforcement, a noise gate is often employed to mute or attenuate the microphone signal when the sound level falls below a certain threshold. This helps minimize the pickup of ambient noise and unwanted signals. 3. Radar systems: Signal gating plays a crucial role in radar systems, particularly in pulse-Doppler radar ...
If you want live noise-gating you will need expensive equipment -- but for post-processing, Audacity has built-in noise gating. It works pretty well provided that you can get a sample of the background static that you want to remove. A half-second silence (or crowd noise) is enough. zowie 19:04, 1 January 2006 (UTC)
A second mic receives ambient noise. In a noisy environment, both microphones receive noise at a similar level, but the primary mic receives the desired sounds more strongly. Thus if one signal is subtracted from the other (in the simplest sense, by connecting the microphones out of phase) much of the noise is canceled while the desired sound ...
The charged elements in the vacuum tubes can mechanically vibrate, changing the distance between the elements, producing charge flows in and out of the tube in a manner identical to a capacitor microphone. A system sufficiently susceptible to microphonics could experience audio feedback, and make noises if jarred or bumped.
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The close mic sound is fed to the reverberation unit, then optionally to a compressor, and then to the noise gate's signal input. [16] The same sound from the close mic is fed to the noise gate's key input. The "wet" and "dry" sounds (which is to say the processed and unprocessed sounds, respectively) can be mixed to taste.
The hot mic debate is one in which neither side exactly has clean hands. It was Trump’s team in 2020 who argued against muting his microphone, saying it was “completely unacceptable for anyone ...