About this tool
Audio Edit trims a clip down, fades it in or out, and adjusts its volume, right in your browser. Drag the waveform's handles to set the start and end points, preview the result before committing to anything, and download it as a WAV file when you're happy with it. Nothing ever leaves your device.
"Auto normalize" is peak normalization: it finds the loudest single point in your selected range and scales the whole clip's volume so that peak sits just under full scale, without clipping. That's a different, simpler thing than the loudness (LUFS) normalization used by streaming platforms, which targets average perceived loudness rather than a single peak -- but it's a quick way to bring a quiet recording up to a reasonable volume.
Frequently asked questions
What does "Auto normalize" actually do?
It finds the loudest point in your selected range and scales the clip's volume so that peak sits just under full scale, without clipping. This is peak normalization -- a different, simpler method than the loudness-based normalization streaming platforms use, but a quick way to bring a quiet recording up to a reasonable level.
Why does this only export as WAV?
WAV stores audio uncompressed, so exporting to it never loses any quality beyond what your fades and volume changes intentionally apply. If you need a smaller MP3 file afterward, run the result through Audio Convert.
Can I hear my changes before downloading?
Yes -- "Play preview" renders your trim, fade, and volume settings live through the same audio graph used for the actual export, so what you hear in preview matches the downloaded file exactly.
Do the fade in/out points apply to the whole file or just my trimmed selection?
Just your trimmed selection. Fade in starts at your selection's start point, and fade out ends at your selection's end point, so the fades always apply to the clip you're actually keeping.