Speed
0.85×
A useful starting point for a slower, lower sound. Use 1× to keep the original or 1.25× for a Nightcore-style edit.
AudioEditDesk
Slowed and Reverb Generator
Slow a song, add reverb or make a Nightcore edit in your browser. Try five presets, trim your clip and download MP3 or WAV free, without uploading your audio.
Your audio is processed on your device, in your browser.
Desktop: files up to 500 MB. Large files need more free memory.
Mobile: files up to 100 MB. For long recordings, MP3 output uses less memory than WAV.
Supported formats
Open MP3 CBR/VBR, WAV PCM 16/24-bit, M4A AAC-LC or OGG Vorbis/Opus. Export MP3 or PCM 16-bit WAV.
Refreshing or closing this tab clears your audio project. Help
How to use
- 1
Choose your audio
Open one supported audio file from your device. Choose a section if you do not need the whole recording.
- 2
Choose your sound
Start with Slowed + Reverb, Slowed, Sped Up, Nightcore or Reverb Only. Fine-tune speed, reverb mix and decay. Use Preview changes to hear the selected section, or export directly.
- 3
Export and download
Choose Export MP3 or Export WAV. When the file is ready, listen to the exported file if you wish, then choose Download.
Hear the difference
Compare the original melody with 0.85× speed, 30% reverb and a 3-second decay. The edited MP3 includes the reverb tail.
Original sample
WAV · 8 seconds · 0.71 MB
Edited sample
MP3 · 12.41 seconds · 0.3 MB
An original melody made for these examples. Press play to listen.
Download the original to try itWhen this tool helps
A softer music edit
Slow your own recording to 0.85× and add a little reverb to let notes linger. Lower the mix if words or drum hits become less clear.
A brighter, faster clip
Choose Nightcore for a higher, faster version. Trim the useful part before exporting so your result is ready to share or use in your next edit.
Turn an 8-second melody into a spacious edit
- Open the original melody from the listening example.
- Choose Slowed + Reverb: 0.85× speed, 30% mix and 3-second decay.
- Preview the change, then export MP3 or WAV and listen through the ending.
What to check The notes play lower and slower. An 8-second selection becomes about 12.41 seconds including the 3-second tail; the original stays unchanged.
Find the right slowed and reverb settings
Start with a preset, then make one adjustment at a time. Preview changes after adjusting to compare the result with your original.
Reverb mix
30%
Keep the original sound clear while adding space around it. Reduce the mix for clearer lyrics; raise it for a more distant effect.
Decay
3 seconds
Sets how long the reverb lingers. Try a shorter decay for busy rhythms or a longer one for sparse notes.
Check your result
- Listen to the words and rhythm
- If the sound gets too blurred, lower the reverb mix or shorten the decay, then preview again.
- Listen through the ending
- The tail extends beyond the slowed selection. Check the exported duration and let the last notes finish before downloading.
What to do next Soften the start or ending of the selected music before speed and reverb are applied.
Slowed + Reverb
Give your music a slower, deeper sound with a spacious reverb tail. Choose a file, try Slowed + Reverb or adjust speed and reverb yourself, then download MP3 or WAV. Your audio stays on your device, with no account needed.
Before you export
- Speed changes tempo and pitch together. 1× keeps the original speed and pitch.
- The waveform, selection and fade times refer to the original audio. The exported duration includes the speed change and any reverb tail.
Questions and answers
What does slowed and reverb do?
Slowed and reverb combines slower playback with a lingering room-like effect. Slowing playback also lowers pitch, giving voices and instruments a deeper sound. Start at 0.85× speed and 30% reverb, then adjust to taste.
Can I make a sped-up or Nightcore edit?
Yes. Sped Up sets 1.15× speed and Nightcore sets 1.25×. Both raise pitch with speed and start with no reverb. Add reverb if you want a more spacious result.
How do I add reverb without slowing the song?
Choose Reverb Only, or set speed to 1× and raise the reverb mix. Adjust decay for a shorter or longer tail. A mix of 0% removes reverb.
Can I trim or fade the same file?
Yes. Set Start and End in the waveform area, or switch to Fade in and out. Your file and settings stay with you. Fades are applied before the speed change and reverb, so a 1-second original fade lasts about 1.18 seconds at 0.85×.