🔗Audio Merger

About this tool

Drop clips in order, set an optional gap, merge. Files with different sample rates or channel counts are converted to the best common format first, so a phone memo and a studio WAV join cleanly. Preview, then download one WAV.

The detail that makes merges clean

Naive concatenation of mismatched audio produces chipmunks: a 48 kHz clip glued into a 44.1 kHz file plays 9% fast and sharp, because the samples are reinterpreted at the wrong rate. This merger checks every clip's format first and resamples to the highest rate present (through the browser's proper resampler), which is why mixed sources come out sounding like themselves. The gap control inserts genuine silence between parts — half a second reads as a breath, two seconds as a chapter break; at zero the clips butt together, and if that junction clicks, the clips needed fades first (cut audio jumps mid-waveform — a fade of even 20 ms silences the click). Order is your pick order, shown numbered, with per-clip removal. For overlapping mixes rather than end-to-end joins — voice over music — you want a multitrack editor, which this honestly isn't. Trim the pieces first; normalize the result after.

Frequently asked questions