Fade audio in and out
Remove the abrupt start and end of a cut clip.
- Runs on your device — the file is never sent anywhere
- No sign-up, no watermarks, no daily quotas
- Free, with no limit on how often you use it
How it works
A clip cut out of a longer recording starts and ends abruptly, and that hard edge is the most obvious sign of a rough edit. A fade of a couple of seconds removes it entirely, which is why almost every piece of produced audio has one.
How long to fade
Two to three seconds suits music and is what most tracks use at the end. Speech wants much less — half a second is enough to soften the start without sounding like the speaker is being faded up mid-word. Podcast intros commonly use a one-second fade in and a three-second fade out.
Fading out needs the length
The fade out is placed relative to the end of the file, so the duration has to be readable. Formats your browser cannot decode have no readable length, and in that case a fade in still works while a fade out cannot be placed.
Reversing
Playing audio backwards is offered here because it belongs with the other whole-file operations. Combined with a fade it produces the swelling reverse effect used as a transition.
It re-encodes
The result is an MP3 at 192 kbps. Fades change the waveform itself, so there is no way to apply one without re-encoding.
Fade audio in and out — questions
How long should a fade be?
Two to three seconds for music, well under a second for speech.
Why can it not fade out my file?
Its length could not be read, which happens with formats the browser cannot decode. A fade in still works.
Can I fade only one end?
Yes. Set the other to zero.
Is my recording uploaded?
No. It is processed in your browser.