Audio Merger
Reorder, trim and join audio or the first audio track of videos, with silent gaps or crossfades. Export MP3, WAV, M4A, OGG, FLAC, Opus, AAC, AC3 or PCM.
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About this tool
Add audio or video and read real waveforms. Reorder and trim clips, then join directly or use silent gaps or crossfades. Choose among nine output formats with sample rate, channels, bitrate or bit depth. Preview and download the actual result. Raw PCM output includes a parameter file.
How to use
- Add at least two audio files and read their information and waveforms.
- Drag to reorder and trim both ends, then choose the output format and transition.
- Generate the merged preview, check duration and clip positions, and download.
Frequently asked questions
Can different formats, sample rates and channels be merged?
Thirty explicit audio/video extensions are supported; videos use the first audio track. Export MP3, WAV, M4A, OGG, FLAC, Opus, AAC, AC3 or PCM. WAV/PCM support 16, 24 or 32 bits; FLAC supports 16 or 24 bits. Raw AAC/AC3 retain and report encoder padding. Re-encoding does not restore lost quality or normalize loudness.
Why is my crossfade duration rejected?
Each clip must be long enough for its fades. Middle clips must fit both incoming and outgoing fades. Shorten the fade or retain longer clips; your setting is never silently shortened.
Does previewing require a second merge?
Merged preview and export share one actual result; downloading does not merge again. Source waveforms on the timeline only describe clip timing. Generated audio contains the actual transitions. Regenerate after editing.
Are unreadable files skipped?
No. Failed reads are marked. Fix or explicitly remove those files before merging. Every retained input is used exactly once in the final result.
How long are files stored?
Original files, previews, reports and results are deleted within 24 hours and can be deleted immediately. Reusing an upload does not extend its original expiry.
Discussion & comments
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