Audio analysis
Loudness Checker
Measure your track. Understand the headroom.
What the numbers mean
Integrated loudness uses K-weighting with absolute and relative gating. Estimated true peak uses 4× interpolation; sample peak reads the decoded samples. Crest factor is peak-to-RMS, not a certified loudness-range measurement.
Spotify’s Normal setting targets −14 LUFS and can turn quieter tracks up when there is sufficient headroom. Playback varies by setting and device. Spotify’s normalization guidance.
Audio analysis runs locally. This meter is not a certified compliance test, and normalization alone does not determine sound quality.
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