Loudness Workbench
Measure integrated LUFS, true peak and loudness range locally. Match mono or stereo WAV/FLAC files, compare before and after, and export verified 24-bit WAV audio.
How we build a check
This workbench processes supported inputs locally. We test calculations, file structure and generated artifacts using independent readers or known fixtures where available. The example runs the same processing path as a supplied input; it does not stand in for checking your own result.
Editorial responsibility
KitForma maintains this tool and its guides. The source notes on the tool page link to the supporting documentation. We do not claim affiliation with the referenced hardware manufacturers or platforms. Review date: 2026-10-18.
Limits and updates
Mono/stereo only · 8–192 kHz · WAV / FLAC · 400 ms–10 minutes per file · 96 MiB input and 24 million decoded channel samples per batch · up to 3 files · 24-bit PCM WAV output. MP3/AAC, video, surround, extensible WAV and live microphone capture are outside this release. If a specification changes or a result appears incorrect, send the relevant source URL and a non-sensitive reproduction to kitforma@outlook.com.
Open-source components
The tools use self-hosted open-source components appropriate to each format, including PDF.js, pdf-lib, fflate, SheetJS, MediaInfo by MediaArea.net SARL and others. Component versions and licenses. MediaInfo license · fflate license.