Remove Background Noise in FL Studio with Edison

The hiss is barely there until the singer stops. Then it fills every gap, and a hard noise gate can chop off the ends of words. To remove steady background noise in FL Studio, capture a representative noise profile in Edison, select the audio you want to clean and preview a conservative reduction. Listen with Output noise only to hear what you’re losing, then turn it off before clicking Accept. That way you keep the processed recording instead of the noise you took out.

This workflow cleans recorded audio. It won’t work as a live microphone noise-cancellation switch. Hold on to an untouched recording. You’re after a less distracting background while the performance still sounds open and natural, never dull or watery.

Which background noise can Edison reduce?

Edison’s profile-based Denoiser is a good fit for hiss, hum, mains buzz and fan or air-conditioning noise that stays reasonably steady in level and frequency. The current Noise Removal Tool manual puts changing events, such as a door slam or bird song, in a separate category. One noise profile won’t remove every unwanted sound.

Listen during a pause and then under a phrase. Is the same background still there, or are you hearing a short click, room echo, distortion or a playback glitch? Choose the tool by the problem you hear. The word “noise” on a button is a poor guide.

Check the source before repairing a recording

If you can record again, deal with an obvious room noise or move the microphone, then record a short comparison take. Change one thing at a time and listen. A quieter-looking waveform doesn’t prove the recording is cleaner. For capture and level checks, see the audio-recording workflow; the microphone input checklist helps when the input is missing or wrong.

If the glitches only appear while a busy project plays, work through the crackling-audio diagnosis and audio settings before you touch a good source file. Image-Line’s Audio Settings documentation covers buffer and driver behavior. Noise that’s already baked into a file isn’t the same problem as a playback underrun, even though both sound unpleasant.

Open Edison and protect the raw audio

According to the current edition comparison, Edison and denoising come with Producer Edition and above. You can try the right edition in the standard time-unlimited Trial, but saved projects cannot be reopened until purchase and unlock. So save the project for later and export the audio you need before you close it. In the Trial, reopening the project can’t be your only recovery plan.

Load Edison into a Mixer effect slot, then use its File > Load sample command to open the recording. Start from the raw take whenever you have it, instead of a mix with added reverb and unrelated instruments. It’s a sensible place to start, though denoising doesn’t have to come before every other process. For the wider editor workflow, see the Edison recording and editing guide.

Leave the original file under its current name and save the result under a new one, such as lead-vocal-take-02-denoise.wav. Accept replaces the selected audio in Edison and doesn’t make a separate backup. Saving over the source file later is its own step, and one to avoid while other clips or projects still need that file.

For an Audio Clip already in the Playlist, Clip menu > Make unique as sample duplicates both the clip and its disk file, while plain Make unique reuses the same audio file. The Playlist’s sample-copy distinction matters here, because renaming a clip doesn’t necessarily give you a second recording. Edit sample opens Edison or whatever external wave editor you’ve set up, so check which editor shows up.

Remove background noise in eight steps

1. Preserve and load the raw recording. Keep an untouched file, open a working copy in Edison and confirm you hear the intended audio.
2. Select representative noise. Find the longest useful section of the same stable background, preferably without wanted voice, notes or decays.
3. Acquire the noise profile. Right-click Clean up (denoise), or open the Noise Removal Tool and choose Acquire noise profile.
4. Select the audio to process. Close the dialog if necessary, select the intended recording or coherent region, then reopen Clean up (denoise). The profile is retained.
5. Preview with Denoiser active. Activate the Denoiser section, leave unrelated repair modules off and begin with the default settings.
6. Listen to the removed audio. Turn on Output noise only during Preview. Adjust Windows Threshold and Amount, or macOS Amount, while checking for wanted detail.
7. Switch back to the processed recording. Turn Output noise only off and preview again. On macOS, adjust Smoothing here to assess artifacts. Check quiet passages, phrases and their boundaries.
8. Accept, save separately and compare. With Output noise only still off, click Accept. Save a separate edited file and compare it with the original solo and in the mix.

How do you choose a noise profile?

Look for it before the performance starts, after it ends and between phrases. You want a selection with the same background as the section you plan to clean. And quiet doesn’t always mean unwanted: an inhale, a guitar decay or a reverb tail can belong to the performance.

Grab the longest representative noise-only stretch you can find; there’s no need to force a fixed one-second selection. If the recording changes halfway through (say, a fan switches speed), listen to each section on its own before you apply one profile across everything.

What if there is no noise-only section?

If there’s no isolated noise, the manual allows a quiet section where the noise is most exposed. It works as a compromise, but it’ll never be as clean a reference. Preview cautiously and stop as soon as the wanted sound starts to disappear. A cropped sample with no isolated noise is exactly the problem raised in this Edison user discussion, so check the untrimmed original before you invent a noise reference.

If the voice is mixed with other sound, the separate Vocal Denoiser described below may be worth a listen. With an instrument that has no usable reference, it’s often kinder to live with some noise or find a better source than to damage the note.

Capture the profile, then select the target

With the noise region selected, right-click Clean up (denoise), or open Tools > Spectral > Clean up (denoise) and use Acquire noise profile. The tool holds on to that profile when you close it to change the selected region. A green frequency curve tells you a profile is loaded, but it can’t tell you whether the selection contained a breath.

Don’t mix this up with Tools > Noise > Acquire noise threshold. The Edison menu reference lists that one as a level threshold for noise-gating functions, and it isn’t the same thing as a spectral noise profile.

No selection means the whole sample

In this Denoiser, no selection means the whole sample gets processed. To clean only part of it, select the coherent section you want before you reopen the tool. If you process small islands differently, listen across their edges for any sudden change in background or tone.

Before you hit Preview, check that Denoiser is active. Declipper and Declicker are separate repair modules, and they don’t make the denoising any stronger. The current Declicker is Windows-only. For cuts, fades and repair choices beyond steady background noise, see the sample-editing and cleanup guide.

What does Output noise only do?

With Output noise only on, Preview plays what’s being removed. Listen for recognizable words, cymbal attacks or a decay you meant to keep. If you hear them there, go back to the profile or ease off the processing. Pushing Amount higher just because the quiet gap sounds cleaner is how vocals get ruined.

Turn Output noise only off before Accept. With it off, Preview and Accept give you the processed audio left after removal, as Image-Line’s removed-versus-residual explanation describes. The noise-only audition is a useful check, but it’s the wrong thing to send to the Playlist as your vocal.

Which denoise settings work on Windows and macOS?

The current manual shows Threshold on Windows and Smoothing on macOS, while Amount sets noise suppression in decibels. A percentage taken from a different denoiser or an old tutorial won’t carry over as a setting.

Windows: Threshold first, then Amount

Image-Line suggests 0 dB as a starting point for Threshold. Raise Threshold and more material gets classified as noise, including low-level detail you may want. With Output noise only enabled, adjust until wanted sound starts to appear, then back off. A lower Threshold can keep detail, but it may leave noise audibly following the performance.

Next, use Amount to decide how much of that noise to suppress. Raise it only until what’s left stops bothering you in context. If the result sounds underwater, go back to Threshold and then Amount. Accepting the edit and trying to hide the damage with EQ rarely works.

macOS: Amount, then Smoothing

Listen to the removed signal while you adjust Amount, and back off once wanted sound starts to appear. Then turn Output noise only off and adjust Smoothing while you listen for processing artifacts. Don’t read Smoothing as a Mac name for the Windows Threshold: it’s a control of its own, and it can’t make unlimited suppression transparent.

Compare the edit before keeping it

After a conservative Preview, accept the working copy and save it separately. Match the perceived loudness of the original and processed versions closely enough to compare them fairly, and play only one at a time. You’re judging articulation and background, so the louder version shouldn’t win by default.

1. Compare the same phrase in the original and processed versions. Does the voice or instrument still have its intended texture?
2. Solo the edit and check soft consonants, attacks, breaths, sustained notes and tails. Listen across any processed-region boundaries.
3. Hear the edit in the actual mix or final listening context. Less suppression can be enough once other audio masks the remaining noise.

If a version fails, go back to the raw source and try again. Don’t stack stronger reduction on an edit that’s already damaged. Once the recording is usable, move on to vocal EQ, dynamics and effects as needed, and check the noise again whenever you make a quiet phrase louder.

When should you use Vocal Denoiser, a gate or EQ?

Vocal Denoiser separates detected voice from other sound

Open Tools > Spectral > Vocal denoiser/isolator in Edison. Unlike the profile-based Denoiser, the Vocal Denoiser Tool analyzes the sample with an AI model and lets you balance detected vocal against non-vocal material. Its Mix range runs from -100% for non-vocal audio to +100% for detected vocal, and 0% gives you the original.

Use Preview and judge the words and tone you hear. A partial blend can keep useful ambience, and the maximum vocal setting isn’t automatically the best result. This tool can’t rescue every buried voice, either. To split a whole song into instrument parts, use the stem-separation workflow instead. Room reverb gets its own Tools > Spectral > Deverb process, which works differently from a stable hiss profile.

A gate quiets gaps but does not separate overlapping sounds

The Fruity Limiter gate controls set its threshold, closed-state gain and release. Once a voice opens the gate, any noise traveling with that voice gets through too. Set the threshold high or the release abrupt and you can cut off the words and tails you wanted to keep.

In Fruity Limiter, the gate’s default GAIN is 100%, which means no attenuation while the gate is closed. Turn it left to strengthen the gating effect. Don’t confuse it with the plugin’s main loudness control, which is a different GAIN. Learn what those controls do before you copy a threshold from someone else’s recording.

EQ changes frequencies, including wanted sound at those frequencies

A notch can help with a narrow unwanted tone, and a high-pass filter can reduce rumble below the useful range of the recording. Parametric EQ 2’s filters work on frequency bands; they have no idea what’s noise. If hiss overlaps the brightness of a voice, a broad high-frequency cut takes out both. When you compare live EQ with an accepted Edison edit, check the Mixer route so you know which processing you’re hearing.

Fix the result when something sounds wrong

Only noise remains after processing

First check whether Output noise only was left on. If it was, use Edison’s Undo if it’s available or reload the preserved raw file, then repeat the preview with that option off. Only then click Accept. Do not overwrite the raw recording with a noise-only output.

The profile is missing or the wrong section was processed

Acquire a profile from the selected noise region; a gate threshold won’t do. Then go back to Edison and select the target separately. With nothing selected, the whole sample is processed. Leave only the small noise patch selected and the performance you meant to clean isn’t part of the selection.

The voice becomes dull, lispy or watery

Check for wanted audio in the profile and in Output noise only. On Windows, revisit Threshold and Amount; on macOS, revisit Amount and then Smoothing with the processed output selected. If backing off leaves too much noise, don’t run stronger passes. Look for a different source or repair method, and use the vocal-recording guide to avoid that compromise next time.

Background texture changes at an edit boundary

Go back to the original and rethink the target region. One steady noise floor usually suits a single treatment of the whole recording. Sections that really differ may need their own decisions. Preview across each join, and through the middle of the repaired phrase too.

Save a separate file and return it to the Playlist

Save the named edited file with File > Save sample as. For an uncompressed WAV, pick Microsoft wave file and skip Microsoft compressed wave file. Both can carry a .wav extension, but the encoding differs. Your raw source stays the fallback.

To add the result to the Playlist, select that region (or leave nothing selected for the whole sample) and left-click Send sample to Playlist. The Edison send-button reference explains how left-click differs from right-click, which replaces the currently selected Audio Clip or Sampler Channel. Check placement and routing, and mute the old version so you don’t play both by accident.

Save the project too. In the standard Trial, export the audio you need before you close, because reopening saved projects requires purchase and unlock. Hang on to the raw file until the edit works in context. The Samples & Audio Editing guides cover the next editing step, and if the background starts at capture, revisit the Recording guides.

Frequently asked questions

Can Edison remove hiss and hum from vocals?

Its profile-based Denoiser can reduce reasonably stable hiss or hum, including underneath a vocal. Capture a representative profile and preview carefully: stronger removal can damage wanted detail, so total silence is rarely a useful goal.

How do I capture a noise profile in Edison?

Select a representative noise-only region if possible, then right-click Clean up (denoise). Alternatively, open Tools > Spectral > Clean up (denoise) and choose Acquire noise profile. After capture, select the audio to process separately.

Should Output noise only be on when I click Accept?

No, not when you want the cleaned recording. Turn it on to audition the removed material, then turn it off, preview the processed audio and leave it off before Accept.

Why does Edison noise removal sound underwater?

The profile may contain wanted sound or the reduction may be too aggressive. On Windows, revisit Threshold and Amount. On macOS, adjust Amount, then listen to the processed result while adjusting Smoothing. Return to the raw recording if an accepted edit is already damaged.

Can I denoise without an isolated noise-only section?

The manual allows a quiet section where the noise is most audible, but that reference may contain wanted audio, so treat it with care. For voice mixed with other sounds, try the separate Vocal Denoiser. Neither route guarantees a clean result.

Is Fruity Limiter a replacement for Edison denoise?

Its gate reduces audio when the level falls below a threshold. It can quiet gaps, but noise still passes when the voice opens the gate. Edison’s profile-based Denoiser targets stable background within recorded audio instead.

Is denoising included in FL Studio Fruity Edition?

The current edition comparison lists Edison and denoising in Producer Edition and above, not Fruity. The standard time-unlimited Trial lets you evaluate editions and export audio, but saved projects cannot be reopened until purchase and unlock.

Eric Norris Nashville-based FL Studio producer and editor focused on practical workflow, mixer routing, troubleshooting, sampling and native Image-Line tools.