FL Studio mix analysis — find what's wrong and how to fix it

Drop a bounce from FL Studio and Unveil tells you why it isn't sounding pro yet — loudness, dynamics, tonal balance, phase, and frequency conflicts — then gives you fixes written for FL Studio's own stock plugins. No third-party plugins to buy — just a free account to try it.

The FL Studio mixer and where 0 dB lives

FL Studio's mixer shows a level meter on every insert and the Master track, and the faders are labeled in dB. The default fader position sits at 0 dB, which is not at the top of the travel: the faders can go above it for added gain, which tempts people to push tracks beyond unity. Mixing is done in floating point, so insert overs do not clip internally, but the signal arriving at the Master and your audio output still has a limit at 0 dBFS.

Because FL began as a pattern-based sequencer, projects often start with every sampler and plug-in channel routed straight into the Master insert. The result is that individual channels at healthy levels sum to something loud. Create a few insert tracks for drums, bass, melodic elements and vocals, route the channel rack to them, and look at the group meters before the Master.

Many FL templates and older projects put a Fruity Limiter on the Master insert. Open the Master and check. A limiter left in place by default can hide a mix that is much hotter than you thought.

Headroom for 808s, kicks and the loudest part of the beat

Trap and hip-hop productions built in FL tend to be dominated by a sustained 808 and a kick fighting for the same sub region. Both are loud, both are low, and the power in the 20 to 80 Hz band can consume headroom that the listener barely perceives, leaving less room for everything else.

• Aim for Master peaks near -6 dBFS on a mix that will be mastered later, or -1 dBTP at the end of a self-mastered chain.
• Use a high-pass filter around 25 to 30 Hz on the 808 to remove inaudible energy that takes up headroom and stresses the limiter.
• If the 808 distorts the limiter, lower its volume at the channel level rather than raising everything else.
• Sidechain the bass to the kick with a Fruity Limiter or a compressor with sidechain input so the two do not stack and spike together.

What the stock plug-ins are good for

Fruity Parametric EQ 2 is a seven-band EQ with a spectrum display behind it. Its bands are controlled by frequency, gain and bandwidth rather than Q numbers; a wider bandwidth setting is a lower Q. It is perfectly capable of precise surgical cuts, and the analyzer is helpful for spotting narrow resonances.

Fruity Limiter is really two units in one: a compressor and a limiter, each with their own thresholds, and a sidechain option. Used as a final limiter, keep the Ceiling at -1.0 dB, watch the gain-reduction display, and stop pushing when it is working all the time. Maximus is a multiband processor with three bands, handy for taming a harsh upper-mid or tightening a loose low end without applying the same setting to the whole spectrum.

Fruity Stereo Enhancer can widen or narrow a signal, but widening should be applied sparingly and never to the sub. Wave Candy gives you a configurable analyzer: spectrum, peak meter, stereo vectorscope and more. It is the quickest way to see whether the low end is mono-compatible.

We are not aware of a standard BS.1770 LUFS integrated loudness meter among the long-standing stock plug-ins, so for accurate LUFS readings use a third-party meter or an analysis tool on the exported file, and compare against roughly -14 LUFS for Spotify and YouTube or -16 LUFS for Apple Music.

Export settings that protect your mix

Use File, Export, then WAV file. In the export dialog set the bit depth to 24 for a mix and 16 only for a final delivery that requires it. Dither is only meaningful when reducing bit depth, so apply it for a 16-bit export and leave it off at 24 or 32-float.

Render quality settings matter for fidelity: if the dialog offers higher-quality interpolation or oversampling choices for rendering, enable them for the final export, and use the same settings when you export a version for analysis, otherwise the measured file may differ slightly from what you hear in playback.

Check whether any plug-in on the Master is doing automatic volume matching or level normalization. If the final file is much louder or quieter than the playback, a hidden gain stage or a limiter set to a different mode is usually why. Always import the exported file back in and compare it with the project.

Worked fix: sub energy that swamps the mix

Say analysis reports the sub band (20 to 80 Hz) 6 dB above target while everything above 250 Hz is fine. The track translates poorly on small speakers and the limiter pumps on every kick.

1. Open the 808 channel's insert and load Fruity Parametric EQ 2.
2. Set the first band as a high-pass at about 28 Hz.
3. Place a second band, a peak/bell, at 55 Hz with a medium bandwidth and cut 3 dB. Play the loop and watch the analyzer; if the fundamental of the 808 follows the key, check the notes with the lowest pitch first since they carry the most energy.
4. On the kick channel, nudge the main body away from the 808: boost 3 dB near 90 to 100 Hz so the kick punches there while the 808 owns 40 to 55 Hz.
5. Load Wave Candy on the Master in its vectorscope view and confirm the low end sits as a vertical line, meaning mono. If it spreads, remove stereo effects from the bass.
6. Export, import the file back, and compare the sub band against your target; the 3 dB cut plus high-pass should bring the 6 dB excess to within the 3 dB tolerance.

Typical FL Studio mistakes

• Leaving every channel routed to the Master, so the sum is hot and the only fix is the master fader.
• Raising mixer faders above 0 dB on many inserts and then using a Fruity Limiter on the Master to compensate.
• Using Maximus on the whole mix as a one-click loudness tool instead of targeting a problem band.
• Trusting Wave Candy's spectrum display for exact numbers; its smoothing and scaling settings change the apparent shape, so use it as a guide rather than a measurement.
• Exporting at 16-bit without dither because a tutorial said 24-bit was always better, then converting later without dither either.

Checklist

Re-measure the rendered file whenever you change an EQ or limiter setting.

• Check the Master insert for a leftover limiter before you evaluate balance.
• Group channels to inserts and keep their peaks well below the Master's.
• Cut inaudible sub below roughly 25 to 30 Hz on bass elements.
• Ceiling of -1.0 dB on any final limiter.
• Export 24-bit for mastering, import the render back and compare with playback.

What you get

• A 0–100 mix score with a per-metric breakdown (LUFS, true peak, dynamic range, stereo, tonal balance).
• Time-localized frequency conflicts — the exact moment and band where elements collide.
• Step-by-step fixes using Fruity Parametric EQ 2, Fruity Limiter, and Fruity Stereo Enhancer — e.g. a corrective Parametric EQ 2 band at the flagged frequency.
• Genre-aware targets so a trap bounce isn't judged against an acoustic record.

Questions

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