How to Make Slowed and Reverb Songs Online
Follow this step-by-step guide to create slowed reverb edits in your browser. No software, no signup, no upload to servers.
TL;DR: Use the generator below: upload your MP3 or WAV, slow speed to 0.80x–0.88x, add reverb at 35–45% wet with 2–4s decay, preview the loudest section, and export as MP3 or WAV. No signup needed.
Try it here
The same editor as the homepage. Follow the steps below with your own song.
- Free, no account
- Your file never leaves your device
- MP3, WAV, FLAC, OGG or M4A in
- MP3 or WAV out
Drop a song here
MP3, WAV, FLAC, OGG or M4A. It is processed on this device and never uploaded.
With the pitch setting folded in, the track plays at 0.90x: speed and pitch drive the same playback rate, so they multiply.
30–45% keeps vocals clear; above 60% the song sits far back in the room.
How long the reverb rings. 2–4 s for most songs; 6 s and up is cathedral territory.
+1 lifts a vocal that got too dark after slowing; negative values go deeper.
+2 to +4 dB restores warmth lost to slowing.
Presets
Format
Quality (kbps)
Fade in
Fade out
Quick Start (60 Seconds)
- Use the generator above, or open the full slowed reverb generator, in Chrome, Safari, or Firefox.
- Click the upload area or drag and drop your MP3, WAV, FLAC, or OGG file.
- Click the Slowed + Reverb preset chip. This sets speed to 0.85x, reverb to 42%, decay to 2.8s, pitch to +1, and bass to +3 dB — which plays at 0.90x once the pitch shift is folded in, since speed and pitch share one playback rate.
- Adjust speed to 0.82x–0.88x and reverb wet to 35%–45% for a cleaner sound.
- Press play to preview. Click Download, choose MP3 or WAV, and save to your device.
Full Workflow for Best Results
Step 1: Choose Your Source File
Use the highest quality file you have. WAV or 320kbps MP3 gives the cleanest result. Low-bitrate MP3s reveal compression artifacts when slowed. Supported formats: MP3, WAV, FLAC, OGG.
Step 2: Upload to the Tool
Open slowedreverbmaker.net and upload your file. Wait for the waveform to appear. The waveform shows you the track's loudness peaks — preview the loudest section to catch distortion early.
Step 3: Set the Speed First
Speed determines the emotional character. 0.80x–0.88x is the classic slowed reverb range. Below 0.75x, lyrics become hard to understand. Above 0.90x, the effect is subtle. Set speed before adjusting anything else.
Step 4: Add Reverb
Reverb wet mix controls how much of the effect you hear. Start at 35–45%. Decay controls how long the reverb tail lasts — 2.0s–3.0s for vocals, 3.5s–4.5s for dreamy edits. Less is more: too much reverb buries vocals.
Step 5: Fine-Tune Pitch and Bass
Slowing lowers pitch, and the pitch control can lift it back. Be aware that speed and pitch drive the same playback rate here, so they multiply: adding +1 semitone to 0.85x puts the track at 0.90x, not 0.85x with a brighter vocal. The tool displays the combined rate whenever pitch is not zero. If a slowed edit sounds too dark, raising the speed slightly is usually the cleaner fix. If it feels thin, add +2 to +4 dB of bass for warmth.
Step 6: Preview and Export
Always preview the chorus or loudest section before exporting. Use headphones for an accurate check. Export MP3 for sharing (small file, universal) or WAV for further editing (lossless).
Recommended Settings by Genre
| Genre/Style | Speed | Wet Mix | Decay | Pitch | Bass |
|---|---|---|---|---|---|
| Pop | 0.85x | 35% | 2.5s | +1 | +2 dB |
| R&B | 0.80x | 38% | 2.8s | +1 | +3 dB |
| Rap | 0.82x | 30% | 2.0s | 0 | +2 dB |
| Sad Song | 0.78x | 42% | 3.5s | +1 | +3 dB |
| Phonk | 0.85x | 25% | 2.0s | 0 | +5 dB |
| Lo-fi | 0.88x | 35% | 2.5s | +1 | +3 dB |
| TikTok | 0.80x | 40% | 2.5s | +1 | +4 dB |
Common Mistakes
Keep wet mix under 45%. Extreme reverb tails become muddy after platform compression.
Start with +2 to +4 dB. Increase only after previewing the loudest section.
Use WAV or 320kbps MP3. Low-bitrate files reveal artifacts when slowed.
Laptop speakers hide problems. Always preview with headphones before exporting.
Adjust one slider, preview, adjust the next. Layering changes without checking leads to muddy edits.
Ready to Try?
Scroll back up to the embedded generator, or open the full slowed reverb generator with presets, demos, and settings tables. No account, no upload, no limits.
For deeper reading: Complete Slowed Reverb Guide, History & Culture, Audio Science.