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# How to Use Noise Gate in Logic Pro
- URL: https://logicpros.net/logic-pro-noise-gate/
- Published: 2026-10-15T17:48:00.000Z
- Updated: 2026-10-22T20:14:40.000Z
- Description: Quiet the gaps while keeping soft words, drum attacks and natural decays. Set the stock gate, understand its detector, and avoid the Expander mix-up.
- Author: Marcus Sullivan
- Tags: Tutorials, Mixing, Features & How-To

In Logic Pro, open an Audio Effect slot on the track and choose **Dynamics > Noise Gate**. Keep it in Gate mode, set the Threshold so the quietest sound you want still opens it, then adjust Reduction, Attack, Hold and Release. The aim is to quiet the gaps without losing the performance.

[Download](#)

A gate has an obvious limit: when the voice, guitar or drum opens it, the background noise comes through too. If hiss is audible underneath every word, pushing the Threshold higher usually trades noise for missing syllables. I would rather leave a little room sound than turn a good take into a sequence of chopped phrases.

This guide covers the stock Noise Gate in **Logic Pro for Mac**. It also explains why Logic’s Expander is a different tool, despite the two often appearing together in noise-cleanup advice. The same plug-in is on Logic Pro for iPad: choose Dynamics > Noise Gate in a channel strip’s Audio Effect plug-in menu or the Plug-ins area. Apple’s [iPad Noise Gate reference](https://support.apple.com/guide/logicpro-ipad/noise-gate-overview-lpipbafe55dc/ipados) lists the same Threshold, Reduction, Hysteresis, timing and detector-filter controls, with the filter switch labeled Key Filter.

## What a noise gate can fix

Apple describes [Noise Gate as passing audio above its threshold and reducing audio below it](https://support.apple.com/guide/logicpro/noise-gate-overview-lgcef1bececd/mac). That makes it useful for low-level room noise between vocal lines, amplifier hum between guitar phrases, or quieter bleed between drum hits. The whole signal is turned down when the gate closes. It doesn’t separate the wanted sound from the noise within that signal.

First listen to a gap, a quiet phrase and a loud phrase. If the unwanted sound stays clearly below the quietest wanted note, a gate has something useful to work with. If they overlap in level, detector filtering may help when their frequency content differs. Otherwise, the cleanest answer may be editing individual gaps or improving the recording rather than forcing one Threshold across the take.

For an overall vocal treatment, keep the [vocal mixing chain](https://logicpros.net/mix-vocals-logic-pro/) in view. Gating only solves one part of that job.

## Set Threshold against the quietest useful sound

1. **Insert Noise Gate on the track you want to clean.** Choose Gate, rather than Ducker. Start with no external Side Chain source selected so the track itself controls the gate.
2. **Loop a revealing passage.** Include silence, the softest wanted word or note, and a louder section. Setting a gate from the loudest peak alone tells you very little about what it will remove.
3. **Raise Threshold until the gap is reduced.** Watch the Open and Close indicators, then listen through the quiet performance. Lower Threshold again if breaths, consonants, soft notes or ghost hits disappear.
4. **Choose how far the closed gate turns the track down.** Reduction is the depth of that attenuation. A gentler negative value leaves some low-level sound; its lowest setting fully suppresses audio below the threshold.

For a vocal, try partial reduction before complete silence. A value such as −12 dB is one example to audition. It isn’t a standard vocal preset, but it can make gaps less distracting while retaining some continuity in the room sound. If the noise still jumps out whenever a word starts, more reduction in the gaps won’t remove the noise during that word.

![Logic Pro Noise Gate Threshold and Reduction knobs with Gate selected and the Hysteresis slider below](https://storage.ghost.io/c/20/71/2071c898-de7d-454c-9b19-3de1581e628d/content/images/2026/10/logic-pro-noise-gate-core.webp)

Threshold decides when the gate opens. Reduction decides how much quieter the signal becomes when it closes.

Apple’s [Noise Gate setup instructions distinguish partial reduction from complete suppression](https://support.apple.com/guide/logicpro/use-noise-gate-lgcef1bec259/mac). Choose between them by listening to the transition into each phrase as well as the silence on its own.

Threshold is relative to the level arriving at the plug-in. If you change gain earlier in the chain, revisit the setting. For that reason, I’d get [track gain staging](https://logicpros.net/gain-staging-logic-pro/) reasonably settled before spending time on the gate.

## Attack opens, Hold waits, Release closes

These controls shape the gate’s movement. They’re easy to confuse, and the direction matters:

- **Attack:** how long the gate takes to open fully after the signal exceeds Threshold. A slower Attack can soften or miss the front of a word or drum hit.
- **Hold:** how long it remains open after the signal falls below the threshold. This can bridge a brief dip instead of closing halfway through a phrase.
- **Release:** how long it takes to reach the chosen attenuation as it closes. A longer Release allows a decay to fade more naturally; a very short one can sound abrupt.

For drums, start by preserving the attack. Then lengthen Hold or Release enough to keep the body of the hit. For vocals, listen closely to word endings, soft consonants and breaths you intend to keep. The right timing depends on the phrase and its decay, so a number copied from another session is only a starting point.

![Logic Pro Noise Gate Attack, Hold and Release knobs with Open and Close indicators and the Lookahead slider](https://storage.ghost.io/c/20/71/2071c898-de7d-454c-9b19-3de1581e628d/content/images/2026/10/logic-pro-noise-gate-timing.webp)

Attack controls opening, Hold keeps the gate open, and Release shapes closing. The displayed values are examples, not a vocal or drum preset.

[Apple defines Lookahead as analyzing the incoming signal ahead of time](https://support.apple.com/guide/logicpro/noise-gate-overview-lgcef1bececd/mac) so the gate can respond more quickly to peaks. If an attack still sounds clipped after Threshold and Attack are sensible, audition Lookahead. It won’t rescue a quiet note that never reaches the opening threshold.

Put the gate before a reverb when you want to clean the dry performance while leaving the reverb’s tail to decay. Gating the combined dry sound and reverb instead makes the tail part of the material being cut. Neither placement is compulsory. Decide which sound you want to shorten.

## Stop chattering with Hysteresis

A signal hovering around Threshold can make the gate open and close repeatedly. That flutter is chattering. Hold can keep the gate open through a short dip; Hysteresis gives it a separate, lower closing threshold.

For example, an opening Threshold of −30 dB with Hysteresis at −6 dB means the closing threshold is −36 dB. Once open, the gate stays open until the detector falls below that lower level. These numbers explain the relationship. They aren’t a measured recommendation for your take.

[Apple suggests −6 dB as a place to start for Hysteresis](https://support.apple.com/guide/logicpro/use-noise-gate-lgcef1bec259/mac). Listen before increasing the separation further. A wider gap can prevent flutter but also let more noise remain between words, especially if the signal never falls below the closing level.

Change one control at a time. If the gate opens correctly but closes between syllables, try Hold or Hysteresis. If it closes at the right moment but the fade sounds unnatural, adjust Release.

## Use detector filters when bleed opens the gate

Threshold alone can struggle when wanted hits and unwanted bleed are similarly loud. A snare microphone, for example, may also contain hi-hat. Noise Gate’s Low Cutoff and High Cutoff controls let you narrow the signal that triggers opening.

1. Turn on the Filter button and use **Bandpass** when you want a selected frequency band to drive the detector.
2. Turn on **Monitor** to hear the trigger signal, including the active filters.
3. Adjust High Cutoff and Low Cutoff while listening for the wanted event. In the snare example, reducing high-frequency hi-hat information can help the snare dominate the trigger.
4. **Turn Monitor off**, then set Threshold and listen to the actual gated track. Recheck softer hits as well as loud ones.

![Logic Pro Noise Gate detector filter panel with Bandpass, Monitor off, High Cutoff and Low Cutoff sliders and the Filter button](https://storage.ghost.io/c/20/71/2071c898-de7d-454c-9b19-3de1581e628d/content/images/2026/10/logic-pro-noise-gate-detector.webp)

These filters change what triggers the gate. The open 20 Hz to 20,000 Hz range shown here is not a snare setting; narrow it while monitoring the detector.

This distinction matters: [the side-chain filters have no influence on the actual gated audio](https://support.apple.com/guide/logicpro/use-noise-gate-lgcef1bec259/mac). They aren’t a substitute for Channel EQ. Changing High Cutoff doesn’t directly remove those frequencies from the sound you hear after Monitor is off.

The Characteristics menu also offers Band Reject. Use that when excluding a band helps the detector focus on the wanted event. It’s still detector filtering, so it doesn’t put an audible EQ curve on the sound.

Without an external Side Chain selection, the input supplies the detector. Selecting another source in the plug-in header lets that source control the gate instead. If a track opens at unexpected moments, check this menu before chasing Threshold settings. For the separate job of making one track turn another down, see [sidechain compression in Logic Pro](https://logicpros.net/sidechain-compression-logic-pro/). Noise Gate can do a simple version of that job, too. Insert it on an aux that receives the tracks you want lowered, click the Ducker button and choose the bus carrying the voice as the Side Chain source, so the music dips while someone speaks. For cleaning the gaps in one track, leave it on Gate.

## Should Noise Gate go before a compressor?

I’d start with the gate before the compressor when the goal is to reduce noise in gaps on a single track. Compression and subsequent gain changes can alter the level relationship that the gate reacts to. Working from the untreated track makes the first decision easier to hear.

That routing is a recommendation, and you can break it. A heavily processed drum sound may need a gate later in the chain to deliberately shape its envelope. A vocal may need only a few manual edits. In either case, compare bypassed and active audio through the whole mix. A soloed gate that sounds impressively silent can still remove useful detail once the instruments come back in.

If you’re building a compressed vocal or drum chain, the [Logic Pro Compressor guide](https://logicpros.net/logic-pro-compressor/) covers that processor’s separate controls. Do not solve a compressor balance problem by tightening the gate.

## Logic’s Expander is not a gentler noise gate

The word “expander” is used for more than one kind of dynamics processing. A downward expander reduces material below a threshold. Logic’s stock plug-in named Expander is a **genuine upward expander**: it increases dynamic range **above** Threshold.

[Apple specifies a Ratio range from 1:1 to 0.5:1 for Expander](https://support.apple.com/guide/logicpro/expander-controls-lgcef1bee3e7/mac). Its Threshold, Ratio and Knee determine how the louder signal is expanded, and Attack and Release control its response. That’s useful when you want more dynamic movement, but it isn’t the stock tool to close quiet gaps between vocal lines.

For softer noise cleanup, stay with Noise Gate and use less Reduction. Reach for Expander when the task is restoring or exaggerating dynamics above a chosen level. Watch the output: expansion can increase level, and Apple advises reducing Gain when extreme settings cause distortion. Auto Gain compensates for the increase. Output Clip is a clipping control, and it doesn’t remove noise.

## When the result still sounds wrong

### Words or drum attacks disappear

Lower Threshold first and check whether the wanted event opens the gate. If it does, shorten Attack to preserve its front. A correct opening threshold with slow timing is a different problem from a quiet note that never triggers opening.

### The gate flutters or cuts a decay short

Check Hysteresis and Hold for rapid reopening, then Release for the fade. Full silence may be too much for a vocal with audible room tone. Try less Reduction and compare the phrase transition again.

### You hear the filtered trigger instead of the track

Turn Monitor off. If the gate reacts to the wrong instrument, confirm the Side Chain source and audition the detector filters. Do not compensate with output EQ for a mistake in what is opening the gate.

### The noise remains underneath the performance

That is the gate’s limit. It attenuates low-level sections and lets the whole signal through when open. A noise problem that continues during singing needs a different cleanup approach or a better recording; raising Threshold until the singer vanishes is not a fix.

### Audio seems gated even with no Noise Gate inserted

Check processing earlier in the recording path. On a supported Mac, [Apple advises setting Mic Mode to Standard for creative recording](https://support.apple.com/en-us/121587). Other modes change built-in and external audio input. If the Mic Modes icon is absent, Apple says the feature doesn’t apply to the app in use. For the wider capture diagnosis, follow [the quiet microphone checks](https://logicpros.net/why-is-my-mic-so-quiet-in-logic-pro/).

A useful gate setting survives the quietest phrase, the longest decay and the full mix. Once those sound right, leave it alone and continue with the [Mix & Master guides](https://logicpros.net/logic-pro-mixing/).