Fit an existing music track to your film with Audition Remix

Your video lasts 45 seconds. The instrumental you want to use lasts two minutes, and its ending matters. That invented editing brief gives Audition Remix a concrete job: find a shorter arrangement that still sounds like a complete piece.

Adobe identifies Remix as a Sensei feature for changing music’s duration. This guide follows the documentation; no recording was processed or auditioned for it.[1]

Use an activated desktop installation and a recording you own or can edit. Adobe’s release notes list Audition 26.5, released in September 2026.[2]

Put the recording into a session

1. Choose File → New → Multitrack Session. Name it and choose a folder. Set a stereo mix and a sample rate matching the recording; Audition prompts to resample files that differ from the session.
2. Select an empty track, put the playhead at the start, then choose Multitrack → Insert Files and select the recording.

A SESX session stores references to media and the editing decisions, not the audio itself. Keep the recording in its chosen location so the session can find it when reopened.[3]

Find a musical route to the ending

Remix analyses beats and content to find transitions, then rearranges passages. Select the clip. Choose Clip → Remix → Enable Remix. In Properties, set Target Duration to 45 seconds for this example. Under Advanced, enable Stretch to exact duration if the timing must match precisely. That final adjustment time-stretches the rearranged clip.[4]

Listen against the picture for distracting repetition, early energy changes and broken musical pulse. Meeting the duration alone does not settle the arrangement.

For awkward joins, adjust Edit Length: Long favours longer passages with fewer transitions; Short allows more, shorter sections. Compare the alternatives. To return to the original clip, choose Clip → Remix → Revert Remix.[4]

Save the arrangement and the audio

Choose File → Save to retain the session. For a portable archive, use File → Export → Session and select Save Copies of Associated Files. A session saved alone still depends on its source media.[5]

With only the intended music in this session, choose File → Export → Multitrack Mixdown → Entire Session. Select WAV, a new filename and the sample rate and bit depth required by the video project. Export reflects the current mix settings.[5]

Open the WAV and check its duration, the first entrance and the final decay. Return to the session if the ending feels hurried. You now have a file to place in the film and an arrangement you can revise when the edit changes.

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