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Using a Gate - Pro Tools 9

SALE TODAY: Learn Piano on iOS http://bit.ly/PianoAppSale A gate is a type of expander, the opposite of a limiter. While?a limiter stops a signal from passing a threshold, a gate allows a signal to be audible only once it?reaches a certain threshold. Before the signal reaches the threshold, it will be absolutely silent. Gates are used often for snare and tom drums and guitar tracks. The video tutorial uses toms as an example. Toms aren't being played continually throughout the entirety of a song like a kick or snare would be. The tom is miked the whole time, so it captures a lot of background noise. A gate can help get rid of background noise, but you can also delete the noise manually if you prefer. There are pros and cons. When using a gate, there is a risk of sound artifacts, and so with songs that have very few tom hits, manual editing is recommended.?But if your song has a large number of tom hits, it's easier to use a gate. Directions 1. Select and loop a tom section from a track in Pro Tools. In the mix window, pick a tom channel strip. Click on an empty insert section and then click?plug-in--Dynamics--Expander/Gate Dyn 3 (mono). The gate window will appear. The layout of the gate window is similar to that of the compressor window. It has a preset menu bar at the top, along with level meters and an x-y axis map.? Like the compressor window, the gate window contains the ratio, attack, release and threshold knobs. It also contains the hold and range knobs. The hold knob is used to control the amount of time that the gate will let sound through once the signal level goes below the threshold. The range knob controls how low the sound gets when it's below the threshold. You can make it so no sound at all gets through, or you can make it so some sound is still audible. 2.?Click the preset menu bar and choose the Snare Gate SC preset, then listen to the track and watch those levels. In the video, the tom goes over -15 dB. Overall, this preset has a good sound, but there is still a crash of background noise at the end. 3. To get rid of this background noise, try setting the threshold to just over the background noise level but not over the tom. To start this, turn the threshold to -51.2 dB; when using a gate, start very low, as opposed to using a compressor, where you should begin by setting it high. 4. Now, try raising up the threshold. As you do, you'll hear the background noise fade away. At -21.9 dB, you'll just hear the tom. Pay attention to the ratio. With a gate, the ratio refers to how fast you're letting the signal through. The lower the ratio, the more slowly the gate reacts and the faster the signal comes through. You'll want a high ratio, especially for drums, because they're a fast percussion instrument. If you're working with a guitar track, you might still want a high ratio, but you'll have to change the release. The release refers to how quickly the gate cuts off the signal after it comes back down through the threshold.?Attack is how quickly the gate opens once the signal reaches the threshold. If you're working with drums or other fast percussion, a low attack level is best. If the attack is too high, you won't hear anything. By the time the gate opens, the sound will already have fallen back down below the threshold. Read more by visiting our page at: http://www.mahalo.com/courses/learn-pro-tools-9-part-3/dynamic-processors/use-a-gate//
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