Best Slowed and Reverb Settings for Clear Vocals (With Table)
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Keep every lyric intelligible in a slowed edit: Reverb mix under 45%, moderate Space, a Tone that is not too dark, restrained Bass, speed at 0.85x or above, and an A/B method.
The complaint under almost every slowed + reverb upload that did not land is the same: you cannot hear the words. The style invites you to pile on reverb and drag the speed down, and both of those things work directly against the vocal. A singer who was front and centre in the original mix ends up two rooms away and an octave into the mud.
It does not have to go that way. Some of the best-known slowed edits are ones where the voice stays perfectly clear while everything around it goes soft and wide. Getting there is mostly a matter of knowing which control hurts the vocal and by how much. This guide gives you a set of settings for the free slowed reverb maker tuned around vocal clarity, explains the reasoning behind each, and ends with a table by vocal type. The two controls doing most of the work are the Reverb mix and Tone, so those get the longest sections.
The settings, up front
If you want a number to start with on any song with a lead vocal:
| Control | Value | Why |
|---|---|---|
| Speed | 0.85x to 0.88x | Enough drop for the style, voice still in its natural range |
| Preserve pitch | Off | The pitch drop is the sound; the speed limit protects the voice |
| Reverb | 30 to 42% | Under 45% the consonants survive |
| Space | 2.4 to 3.0 s | Long enough to feel like a room, short enough to clear before the next line |
| Bass | +3 to +5 dB | Weight without crowding the low end of the voice |
| Tone | -1 to -3 dB | A little darkness for mood, not enough to bury sibilance you need to hear |
| Width | 1.0 to 1.15 | Keeps the centre image, where the vocal sits, solid |
Everything below explains why those ranges, and when to leave them.
Reverb mix: the control that decides it
Reverb in this editor is a wet mix, 0 to 100%, between the dry song and the output of a convolution reverb. It is the single biggest factor in whether lyrics stay intelligible.
Speech intelligibility depends on consonants, and consonants are short and quiet compared with vowels. Reverb fills the gaps between them. At 30% mix, the gaps are still there and the brain has no trouble. At 45% they are mostly filled and you start leaning in. Above 55% the vowels of one word are still ringing when the consonants of the next arrive, and the words blur into a tone.
Numbers to work with:
- 30 to 35%: clear. Good for rap and fast lyrics.
- 36 to 42%: the slowed + reverb sweet spot for sung vocals. Noticeable room, every word intact.
- 43 to 48%: the edge. Fine on slow ballads with long notes, risky on anything with a quick delivery.
- Above 50%: instrumental territory. Vocals will smear.
If one number from this whole guide stays with you, make it this: keep Reverb under 45% when the vocal matters.
Space: shorter than you would guess
Space is the decay time of the reverb tail, 1.2 to 6.0 seconds. It matters less for clarity than the mix does, which surprises people, but it is not irrelevant.
A long tail at a low mix is like a big hall heard from the front row: you know it is there, but the voice is still right in front of you. A short tail at a high mix is a small tiled room with you shouting in it. For clarity, you want the first picture.
Pair the decay to the phrasing:
- Fast rap, dense lyrics: 2.0 to 2.4 s.
- Pop and R&B, moderate phrasing: 2.6 to 3.0 s.
- Slow ballads with long held notes and gaps: 3.2 to 4.0 s is fine, because the gaps give the tail time to clear.
Remember that slowing the song stretches the gaps too. A 0.85x edit gives every phrase 18% more room than the original, which is part of why slowed vocals can carry more reverb than the same vocal at full speed.
Tone: dark, but not that dark
Tone is a high shelf, -10 to +10 dB. Negative values darken the whole signal, dry and wet together. The slowed + reverb aesthetic leans dark, and the Haze Chamber preset goes all the way to -10.
For vocals, that is too far. Consonants like s, t, k and f live above 4 kHz. A -10 dB shelf takes most of them away, and the brain has to reconstruct the words from vowels alone. Combine that with reverb and you have the classic muddy edit.
Keep Tone between -1 and -3 dB when the voice matters. If you want the darker mood, get it from a slightly slower speed and a touch more Space rather than from Tone. If the source is already a dull recording, Tone at 0 or even +1 is fine; the slowing itself is darkening everything by a few semitones.
Bass: restraint
Bass is a low shelf from -6 to +12 dB. It is tempting to max it because the low end is what makes the style feel heavy. The problem for vocals is masking. A big low shelf raises the 100 to 250 Hz region, which is where the body of a male voice and the warmth of a female voice sit. Raise that region too much and the voice loses definition, even though nothing above it changed.
+3 to +5 dB gives the weight without the masking. Go to +7 or +8 only on sparse tracks where the voice has nothing else competing with it. Never stack maximum Bass with maximum Reverb; that combination is how an edit ends up sounding like it is coming through a wall.
Speed: 0.85x and above
Slowing a song to 0.80x drops the voice about 4 semitones; 0.75x drops it about 5. For a voice already in a low register, that pushes it into a range where it stops sounding like a person and starts sounding like a texture. Higher voices tolerate more.
For clarity, 0.85x (about 3 semitones down) is the floor for most vocals. 0.88x is a safer choice for baritones and for rappers with a deep delivery. 0.90x is barely slowed but still sounds like the style when the reverb is right.
If you want the deeper 0.80x sound on a vocal song, compensate elsewhere: Reverb at 32% rather than 40%, Tone at -1 rather than -3.
Width: keep the centre
Width runs from 0 (mono) to 1.5. Lead vocals are almost always mixed dead centre. A stereo widener works by boosting the difference between left and right, which by definition does not include the centre, so pushing Width up makes everything else bigger relative to the voice. At 1.3 and above the vocal can feel like it has stepped back.
1.0 to 1.15 is plenty for a vocal-led edit. The reverb will still feel spacious because the convolution reverb itself is stereo.
An A/B method that actually works
Settings tables are a starting point. Your ears finish the job, and this routine keeps them honest:
- Find the busiest 15 seconds of vocal in the song. Usually a second verse or a pre-chorus, not the hook.
- Set your values. Play that section.
- Switch to the Dry preset mid-playback and listen to the same section.
- Switch back. Ask one question: did I just lose any words?
- If yes, lower Reverb by 5 points. Repeat from step 2.
- If no, you have headroom. Raise Reverb by 3 points and check again. Stop at the last value where every word survived.
Do this on headphones first, then once more through a phone speaker, because small speakers blur reverb more than headphones do. The value that survives the phone is your value.
Settings by vocal type
| Vocal type | Speed | Reverb | Space | Bass | Tone | Width | Notes |
|---|---|---|---|---|---|---|---|
| Female pop, bright | 0.85x | 40% | 2.8 s | +4 | -3 | 1.1 | Can take the most reverb; sibilance survives the Tone cut |
| Male pop, mid register | 0.86x | 38% | 2.6 s | +4 | -2 | 1.1 | Watch the Bass; the voice sits near the shelf |
| Baritone, crooner | 0.88x | 35% | 2.6 s | +3 | -1 | 1.0 | Go easy on speed; already low |
| Rap, fast delivery | 0.87x | 30% | 2.2 s | +5 | -2 | 1.0 | Consonants are everything |
| Rap, slow and deep | 0.88x | 34% | 2.4 s | +4 | -1 | 1.0 | Speed and Bass restraint both matter |
| R&B, melismatic | 0.85x | 42% | 3.0 s | +4 | -3 | 1.1 | Long notes forgive a longer Space |
| Breathy, whispered | 0.86x | 32% | 2.4 s | +3 | 0 | 1.0 | Quiet consonants; no Tone cut |
| Indie, lo-fi vocal | 0.86x | 40% | 2.8 s | +3 | -2 | 1.15 | Already soft; moderate everything |
| Auto-tuned, processed | 0.85x | 42% | 2.8 s | +5 | -3 | 1.1 | Hard-tuned vocals stay clear under more reverb |
| Choir or stacked harmonies | 0.85x | 45% | 3.2 s | +3 | -2 | 1.2 | Multiple voices mask each other less than you expect |
Pick the nearest row, apply it, run the A/B routine, and save the result as a custom preset with Create preset. Over time you end up with three or four vocal presets that cover most of what you edit.
Adjusting the built-in presets for vocals
The presets ship tuned for overall mood, not vocal clarity. Here is how to pull each one toward the voice.
- Haze Chamber (0.85x, 54%, 1.2 s, +12, -10, 1.5): a great instrumental sound and far too much for words. Reverb to 40%, Bass to +5, Tone to -3, Width to 1.1. Keep the short Space; it suits the preset's character.
- Wave Drift (0.90x, 50%, 2.8 s, +2, -1, 1.08): close already. Reverb to 42% and leave the rest.
- Lift (1.30x, 0%, 2.2 s, +1, +3, 1.05): a sped up preset, not relevant to slowed vocals, but note that it keeps Reverb at 0 for the same reason this guide keeps it low.
When the vocal is still unclear
If you are inside all of the ranges above and the words are still hard to make out, the problem is usually upstream:
- The source is a low-bitrate file. 128 kbps and below have smeared high frequencies to start with. Slowing stretches the smear. Find a better copy.
- The original mix buries the vocal. Some productions are vocal-light by design. No reverb setting fixes that; pick a different song.
- You are listening on a phone speaker. Check on headphones before changing anything. If it is clear there and muddy on the phone, lower Reverb another 5 points and raise Tone by 1.
The muddy edits guide goes through these in diagnostic order.
Open the free editor: upload MP3, WAV, AAC, OGG or FLAC, adjust speed, reverb, bass, tone, width and space, then export MP3 or a ZIP of many tracks. Everything runs in your browser.
Frequently asked questions
What reverb percentage keeps vocals clear in slowed and reverb?
Under 45%. Most vocal-led edits sit between 35 and 42%. Rap with fast delivery wants 30 to 35%.
Should I use a long or short reverb decay for vocals?
Moderate. 2.4 to 3.0 s suits most songs. Fast lyrics want the short end; slow ballads with gaps between phrases can go longer.
Why does Tone matter for lyrics?
Consonants live in the high frequencies. A Tone setting darker than about -4 dB starts removing them, and the words get harder to follow even if the reverb is modest.
Is 0.80x too slow for vocals?
Often. It drops the voice about 4 semitones, and low voices lose definition. 0.85x and above is safer. If you want 0.80x, lower the reverb mix to compensate.
Does bass boost affect vocal clarity?
Yes. A big low shelf raises the region where the body of the voice sits and masks it. Keep Bass between +3 and +5 dB on vocal songs.
How do I test if the words are clear?
A/B against the Dry preset on the busiest verse, on headphones and then on a phone speaker. If you lose words, lower Reverb by 5 points and test again.
Does Preserve pitch help with clarity?
It keeps the voice in its original register in the live preview, which can help on very low voices, but it also removes the pitch drop that defines the style and adds slight time-stretch artifacts, and exported files keep the speed-linked pitch regardless. Most people leave it off and limit speed to 0.85x instead.