Extended Audio

This page makes extended audio: you have a track that's too short, and you need a finished file that runs to a specific length. The crude ways are pasting the file end-to-end, which leaves an audible seam where it restarts, or fading the same clip on repeat. Instead, Audjust reads the song's beats and section boundaries and repeats whole musical parts at those points, so the longer version still plays as one continuous piece.

To use it, upload an MP3 or WAV and let the tool analyze the audio. Enter the length you want or drag the handle to a longer duration, and it places beat-aligned repeat points to fill the extra time. Preview the result, nudge a transition if one stands out, then export. It's free, runs in your browser, and needs no signup or install.

A common case: your background music is 1:30 but the video, reel, or presentation it sits under runs 4:00. Extending the track holds the same mood the whole way through instead of restarting the song or cutting to silence.

Extending works best when the song has clear repeating sections, verses, choruses, a steady beat. A track that's one continuous build with no repetition gives the tool fewer clean splice points, so the added length can be more noticeable.

This doesn't generate new music, and it doesn't change pitch or tempo. It rearranges and repeats the audio you already have to reach the length you set, which is why it stays faithful to the original recording.