Gate - Datavideo AD-300 Instruction Manual

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Threshold (-6 – +24 dBu) is the signal level at which the limiter will be activated.
Setting it to OFF disables the limiter.
Attack Time (50 – 500 msec) is the reaction time of the limiter. The limiter has a much
faster attack time than a typical compressor.
Decay Time or release time (300 – 2000 msec) is the time the limiter takes to return
to zero compression.

Gate

The noise gate mutes an audio signal when it goes below the threshold. Therefore, it
can be used to reduce the noise.
Threshold (-88 – -28 dBu) is the signal level at which the gate will be activated. Setting
it to OFF disables the limiter.
Attack Time (50 – 500 msec) is the reaction time of the gate, which determines how
quickly the noise gate reacts to the changes in the input signal level.
Decay Time or release time (300 – 2000 msec) determines how quickly the gate stops
having an effect after the input signal level crosses above the threshold.
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