MASTERLYZER
K-WEIGHTED
◐
Mastering Analysis Tool
Upload your audio file for accurate loudness analysis using proper ITU-R BS.1770 K-weighted LUFS measurement — the same standard used by streaming platforms.
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Drop audio file here or click to browse
Supports: WAV · MP3 · FLAC · OGG · M4A · AAC
Analyzing audio…
Applying K-weighting filters
Analysis Results
Analyze New File
File Information
Key Metrics
✓ ITU-R BS.1770-4
Loudness vs Streaming Targets
-30 LUFS
-20 LUFS
-10 LUFS
0 LUFS
Spotify / YouTube (-14)
Apple Music (-16)
Your track
Recommendations & Guidance