Kill the dead air. Match the levels. In one pass.
Drop your files: the trimmer finds where each one actually starts and ends, cuts the silence, and normalizes the level — peak for samples, LUFS for spoken word. Batch out as a ZIP.
Nothing is uploaded — your audio never leaves your device.
Clean files are the floor. A clean library is the product.
AudioEncode in the studio runs this across your whole collection and remembers the results — every file trimmed, tagged, and findable forever. Sign up: 3 full packs free.
Why head-and-tail silence matters more than it seems
A half-second of dead air in front of a sample means every drop lands late when you trigger it. Uneven lead-ins across a kit mean nothing sits on the grid. And a folder of voice notes recorded at wildly different levels is unusable until someone levels it. This tool fixes all three in one pass, for up to ten files at a time, and never touches the audio between the first and last real sound.
The two normalization modes exist because "loud" means two different things: peak mode makes the loudest sample hit a target — right for drums and one-shots — while LUFS mode matches how loud material feels, which is what podcast platforms and streaming services actually measure.
Frequently asked questions
How does the silence trimmer decide what to cut?
It scans from each end for the first moment the level rises above a threshold (default −45 dB, adjustable) and cuts there, snapping to zero crossings with a few milliseconds of padding so nothing clips or pops. Quiet fade-ins survive — raise the threshold if your material starts extremely soft.
What's the difference between peak and LUFS normalization?
Peak normalization raises the whole file so its loudest sample hits a target — perfect for one-shots and samples. LUFS normalization matches perceived loudness — the right choice for voice notes, podcast clips, and comparing songs. The tool offers both.
Can it remove silence in the middle of a file?
This tool trims head and tail only — mid-file gaps are usually intentional in music. For dead-air removal inside podcast episodes, use the Dead-Air Trimmer on poddj.com; it's built exactly for that.
What format comes out?
Uncompressed WAV at the source sample rate, single files directly or batches as a ZIP.