How to fix inter-sample peak distortion — browser true-peak limiter
- Step 1Upload your audio — Drop any audio file.
- Step 2Set true-peak ceiling (e.g. −1 dBTP) — Set the dBTP ceiling in the options panel.
- Step 3Download limited audio — Download the inter-sample-safe output.
Frequently asked questions
What is the difference between peak level and true-peak?+
Peak level (in dBFS) measures the amplitude of digital samples. True-peak measures the reconstructed analogue waveform between samples, which can exceed the digital peak after D/A conversion. A file measuring −0.3 dBFS may have true-peak values above 0 dBTP, causing clipping in playback hardware and codec encode stages.
What true-peak ceiling should I use for streaming platforms?+
Spotify and Apple Podcasts specify −1 dBTP. YouTube recommends −1 dBTP. EBU R128 broadcast standard requires −1 dBTP. For absolute safety on all platforms, use −1.0 dBTP. A −0.1 dBTP ceiling is very conservative and common in broadcast mastering.
Does true-peak limiting affect loudness LUFS?+
True-peak limiting only reduces gain at the specific moments where peaks exceed the ceiling — which can slightly reduce integrated LUFS if limiting is frequent. For files that need both loudness and true-peak compliance, use the loudness normaliser first (to target LUFS) then the true-peak limiter as a safety ceiling.
Privacy first
All audio processing runs locally in your browser using FFmpeg compiled to WebAssembly. No file is ever uploaded — only metadata counters are saved for signed-in dashboard stats.