Loudness Lab
Measure a file you already own
Drop a FLAC, WAV, or AIFF. HiFi Score computes DR, integrated loudness, and whether a hi-res file looks upsampled. Vinyl needle-drops are stored separately from digital measurements.
Files never leave this browser. Decoding and measurement run locally. Submitting sends only the numbers.
Accepted measurements become evidence on edition pages and the open dataset. See contributors.