How to Make a Slowed and Reverb Song (Complete 2026 Guide)
Every step from picking a source file to a finished slowed + reverb MP3, with the exact speed, reverb, bass and tone settings that work, and the mistakes that make edits sound muddy.
Making a slowed and reverb song is simple in principle: play the track slower, add reverb, export. Doing it so the result sounds intentional rather than like a tape running down takes a little more care. This guide covers the whole process using the free slowed reverb maker on this site, but the settings and reasoning apply to any tool, including Audacity, FL Studio or Ableton.
What you need
- A source file. MP3, WAV, AAC, OGG or FLAC. Quality matters more than format. A 320 kbps MP3 or a lossless file gives you headroom. A 128 kbps rip will expose its artifacts as soon as you slow it.
- A browser. Chrome, Edge, Firefox or Safari on desktop or mobile. The editor runs entirely in the browser; nothing is uploaded.
- Headphones and a phone speaker. You will check the result on both.
That is it. No install, no account, no plugin chain.
Step 1: Choose a track that suits the style
Not every song becomes better slowed. The ones that do share a few traits:
- Space in the arrangement. Sparse beats, long pads, and vocals with room around them stretch gracefully. Dense, busy mixes turn into a wall.
- Mid-tempo or faster. A 140 BPM pop song at 0.82x lands around 115 BPM, which still has motion. A 70 BPM ballad at 0.82x crawls.
- A vocal that can go lower. Slowing drops the pitch by roughly 3 semitones at 0.84x. A high, airy voice gains warmth. A voice already at the bottom of its range can turn to gravel.
If you are building a channel, this filter alone saves hours. Audition at 0.85x for ten seconds before committing to a full edit.
Step 2: Load the file and start from a preset
Drop the file onto the editor. Pick Haze Chamber for the classic deep sound or Wave Drift for something lighter, then adjust from there. Starting from a preset instead of from Dry keeps you in a sensible range and makes your edits consistent across tracks.
Step 3: Set the speed
The speed slider runs from 0.50x to 1.50x. For slowed + reverb you are working in this band:
| Speed | Feel | Pitch drop | Use for |
|---|---|---|---|
| 0.90x | Barely slowed | about 2 semitones | Fast songs, dense vocals |
| 0.85x | Classic | about 3 semitones | Most pop, rap, R&B |
| 0.80x | Deep | about 4 semitones | Sparse beats, instrumentals |
| 0.75x | Very deep | about 5 semitones | Ambient edits, atmospheric intros |
| below 0.72x | Extreme | 6+ semitones | Rarely works with vocals |
Leave Preserve pitch off. The pitch drop is the point. Turn it on only when you need to hear the original key, for example for a dance practice track. Preserve pitch changes the live preview only; exported files keep the speed-linked pitch.
Step 4: Add reverb, in two parts
The editor splits reverb into two controls, and the split is the difference between a clean edit and a muddy one.
Reverb is the wet mix: how much of the reverberated signal you hear against the dry signal, 0 to 100%. Space is the decay time: how long the tail lasts, 1.2 to 6.0 seconds.
Start at 40% Reverb and 2.8 s Space. Then:
- Want more distance without losing the words? Raise Space, keep Reverb where it is.
- Want a wetter, more washed sound? Raise Reverb, keep Space moderate.
- Lyrics getting smeared? Lower Reverb first. Decay is rarely the culprit; mix level is.
For vocal-heavy songs stay under 45% Reverb. For instrumentals you can go to 60% or beyond.
Step 5: Shape the low and high end
Slowing a track shifts all its energy downward, so the result often sounds both heavier and duller than you want. Two controls fix that:
- Bass (-6 to +12 dB). Most slowed edits want +4 to +8 dB. The low end is what makes the style feel physical on headphones. Go easy if the source already has a lot of sub.
- Tone (-10 to +10 dB). A negative Tone darkens the top end, which hides the artifacts that slowing introduces and adds to the "underwater" character. -3 to -6 dB is typical. Positive Tone is for sped up edits, not slowed ones.
Step 6: Stereo width
Width runs from 0 (mono) to 1.5. Around 1.1 to 1.25 makes the reverb feel bigger on headphones. Above 1.3, check the result on a phone speaker, because wide stereo can thin out when summed to mono.
Step 7: Preview against the original
Toggle between your preset and Dry while the track plays. Listen for three things:
- Can you still make out every word in the chorus?
- Does the kick still have a point, or has it become a thud?
- Does the tail of the reverb ring over the start of the next phrase?
If any answer is wrong, fix it in this order: Reverb down, Tone up slightly, Speed up a notch.
Step 8: Export
Click download. The editor renders the full track through the same chain you previewed (with Preserve pitch off; with it on, the export will be pitch-shifted) and encodes it to MP3 at 96 kbps, 32 kHz, inside your browser. For YouTube, TikTok and Shorts this is fine, because the platform re-encodes everything you upload anyway. If you are producing a master for streaming distribution, use a WAV source and finish in a DAW.
Processing several songs? Add them all, Select All Tracks, set once, and Download All gives you a ZIP. The bulk converter page covers a full album workflow.
Settings that work for common genres
| Genre | Speed | Reverb | Space | Bass | Tone |
|---|---|---|---|---|---|
| Pop | 0.85x | 40% | 2.8 s | +5 | -3 |
| Rap, trap | 0.82x | 35% | 2.4 s | +7 | -4 |
| R&B | 0.84x | 45% | 3.2 s | +6 | -4 |
| Indie, rock | 0.86x | 38% | 2.6 s | +3 | -2 |
| EDM, house | 0.80x | 50% | 3.5 s | +6 | -5 |
| Lo-fi, ambient | 0.75x | 65% | 5.0 s | +4 | -6 |
| Bollywood, Latin | 0.86x | 42% | 3.0 s | +5 | -3 |
Mistakes that ruin slowed edits
- Too much reverb mix. The single most common error. If you cannot understand the lyrics, nobody will watch the video for three minutes.
- Slowing a low-bitrate file. Every compression artifact gets stretched and exposed. Find a better source.
- Forgetting the phone check. Heavy bass and wide stereo that sound huge on headphones can disappear or distort on a phone.
- Different speeds across one album. If you are posting a batch, pick one speed and keep it.
- Exporting clip by clip. Export the full song once, then cut your Shorts from the exported file.
Copyright, briefly
Slowing and adding reverb to someone else's song creates a derivative work. It does not remove the original copyright, and platforms' matching systems recognise slowed versions. On YouTube that usually means the rights holder claims the video and takes the revenue, and the upload stays up. On some tracks it means a block. If you want to monetise, use music you own or have licensed. Read the copyright guide for the details.
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 speed is slowed and reverb usually?
Between 0.80x and 0.88x. 0.85x is the most common starting point.
Should I slow first or add reverb first?
Set the speed first, because changing speed changes how the reverb tail interacts with the beat. Then add reverb to taste.
Why does my edit sound muddy?
Almost always too much reverb mix, sometimes combined with too much bass. Lower Reverb to 30 to 35%, then bring Bass down 2 dB.
Can I do this on my phone?
Yes. The editor runs in mobile browsers. Long tracks and bulk exports take more time on a phone, but the result is identical.
Is slowing a song enough on its own?
Slowed without reverb is its own style, sometimes called daycore. Try the daycore maker with Reverb at 0 to 20% if you want the pitch drop without the room sound.