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US4809337A - Audio noise gate - Google Patents
https://patents.google.com/patent/US4809337A/en
An audio noise gate having a main audio circuit having a filter with a control terminal for determining frequency response and having at least two different roll …
Expander / Noise Gate circuit - Advancedphotonix
https://www.advancedphotonix.com/wp-content/uploads/2016/08/Expander-Noise-Gate-Circuit.pdf
Audio performance of the prototype was pretty good, THD being approx 0.0015% at 1KHz with +14 dBu input and no attenuation, and output noise with the input muted better than 105 dBu. Expander / Noise Gate circuit
Noise Gate: How to Auto Clean Your Live & Recorded …
https://ledgernote.com/columns/mixing-mastering/noise-gate/
What is a Noise Gate? A noise gate is an electronic device that attenuates the volume of an audio signal by either allowing the signal to pass through unaltered or by closing off the possibility for the signal to pass through entirely. To state that in more basic terms, it either does nothing to your audio or it mutes it, with nothing in between.
(Noise) gate circuits - DIY (Do It Yourself) - Harmony Central
https://www.harmonycentral.com/forums/topic/124546-noise-gate-circuits/
philbo. If it's just a simple gate, using an shunt FET to ground the signal is the easiest. The FET should be an enhancement MOSFET, which is normally off (you have to apply a DC voltage to the gate lead to turn it on). When the FET is off, it does nothing to the signal so it passes through.
What Is A Noise Gate? | Home Brew Audio
https://www.homebrewaudio.com/18966/what-is-a-noise-gate/
To use the noise gate effect, record your audio. Then go the Effect menu and select the Noise Gate effect. It's just that easy. Below are some audio samples of a noise gate in action. I used Reaper for these. In the first pair, the background noise was pretty loud, which you can hear with no gate in the first audio.
Audio Noise Filter Circuit - ElectroSchematics.com
https://www.electroschematics.com/audio-noise-filter/
This audio noise filter circuit is a bandpass filter for audio frequency band. It filters unwanted signals that are lower or higher than the audio frequencies. It has 2 filters: a low pass filter and a high pass filter in a cascade configuration. Both filters are second-order filters with a 24 dB/octave fiter capability.
Stereo Noise Reduction Circuit - ElectroSchematics.com
https://www.electroschematics.com/noise-reduction-circuit-diagram/
Received by Email. The noise reduction circuit is based on the observation that noise is always disturbing in intervals when music stops. It will attenuate the signal output by about 45 dB, when the musical signal input is null or very weak. If the musical signal begins to increase, the attenuation will decrease proportionally reaching the value of 0 dB during normal or strong …
Noise Gate Project Idea - Project Guidance - Arduino Forum
https://forum.arduino.cc/t/noise-gate-project-idea/288500
You need a circuit known as an "envelope follower" to take the audio signal and give you a voltage that represents the peak voltage in your audio signal. You can then measure it in an arduino and use that to control your noise gate.
Anyone have a simple noise gate build? - DIYstompboxes.com
https://www.diystompboxes.com/smfforum/index.php?topic=81918.0
DOD FX30 Noise Gate (looks easy) Boss Slow Gear SG-1 Korg Noise Gate MXR Noise Gate (v2) Distortion Box (distortion + noise gate) Gallien Krueger Noise Master 2000CPL MXR Noise Gate (v1) Noise Gate NF-1 Also, you may want to read some of Tom Scholz's patents. Some killer info.
Audio Dynamics 101: Compressors, Limiters, Expanders, …
https://www.izotope.com/en/learn/audio-dynamics-101-compressors-limiters-expanders-and-gates.html
Gates are mainly used to cut out audio when it’s quiet and unneeded. This can be on a vocal to eliminate breaths, or can be used as an expander to isolate louder signals in a recording (e.g. isolating drums).
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