What Is a Crossfade?
Updated October 2026
A crossfade blends one sound out while another blends in over a short overlap. It is used to join two pieces of audio, or two clips, so the change is smooth.
The short version
- A crossfade overlaps the end of one clip with the start of the next.
- One fades out while the other fades in.
- The length depends on the material: short for speech, longer for music.
- Match the room tone on both sides, so the join stays hidden.
The short definition
In a crossfade, one sound gets quieter at the same time as another gets louder. The overlap makes the join smooth, rather than a click or a sudden change in the background.
Where it is used
Joining two recordings, joining two clips in an edit, and moving from one piece of music to another. For speech, a short crossfade keeps the words clear.
How to check it
Play the join several times at normal volume. A click, a dip or a change in the room means the fade needs changing.
The crossfade how-to has the steps.
Join without a seam
Tunedzy Multitrack lets you overlap clips with fades and check the join by ear.
Free tools for this
Frequently asked questions
How long should a crossfade be?
Short for speech. Listen to the join rather than measure it.
Is a crossfade the same as a fade?
A fade changes one sound on its own. A crossfade joins two sounds.
Why does my join still click?
The overlap is too short, or the room tone differs. Adjust both.
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