Slowed and reverb generator

Slow a song or voice recording, lower its pitch and add room reverb. Adjust the speed and reverb amount, then preview and download your audio.

Hear the slowed + reverb effect

Compare the original with 0.80× speed and 35% reverb.

Add an audio file to slow down and add reverb MP3, WAV, OGG, FLAC, M4A · up to 100 MB

Record up to 10 minutes. Your microphone turns off when you stop or cancel. Preview your recording before processing.

By processing audio, you agree to our Terms of Service. See our Privacy Policy for file handling.

Speed and pitch togetherSlower playback lowers the pitch.
Adjust the reverbChoose 0% for no reverb, or add up to 75%.
Four output formatsDownload MP3, WAV, FLAC, or OGG.

How to make slowed and reverb audio

Upload an audio file up to 100 MB, or choose Try a sample voice. Start with 0.80× speed and 35% reverb, then adjust the sliders. Choose MP3, WAV, FLAC or OGG and click Create slowed + reverb. Listen to the result before downloading it.

Speed and pitch move together. At 0.80×, a one-minute recording becomes about 75 seconds before the reverb tail, and its pitch drops by about four semitones. Choose a speed closer to 1× for a smaller change.

Reverb blends a simulated room response into the slowed recording. More reverb can blur words and soften percussion; set it to 0% for slowed audio alone. With reverb enabled, the export includes two extra seconds for the sound to decay.

Use audio you own or have permission to edit; changing speed or adding reverb does not grant rights to someone else's music. To change pace while keeping the pitch close to the original, use Change Speed. To shift pitch while keeping the clip length, use Pitch Changer.