Mastering Deliverables Checklist: WAV, Metadata, ISRC, and File Naming Mastering deliverables checklist: 24-bit WAV specs, file naming, ISRC codes, metadata embedding, and what aggregators expect before upload.
Finishing a master is only half the job — mastering deliverables must meet distributor specs or uploads get rejected or transcoded poorly. A standard release package includes correctly formatted audio files, consistent naming, and embedded or accompanying metadata.
Key takeaways Deliver 24-bit WAV at native sample rate (44.1 or 48 kHz most common) True peak at or below −1.0 dBTP for streaming encode headroom ISRC per track — unique identifier for royalty tracking File naming: Artist_Title_Version.wav (no spaces or special characters) Audio file specs
Most aggregators accept 16- or 24-bit WAV/FLAC; 24-bit is recommended. Avoid upsampling — export at the session rate. See Export WAV for Mastering . Do not apply dither unless downconverting to 16-bit — Dithering Guide .
Metadata and ISRC
ISRC (International Standard Recording Code) identifies each recording for royalties. Assign one per track before distribution. Embed title, artist, album, and year in metadata when your DAW or tool supports BWF/iXML. Keep a spreadsheet backup for the label or distributor portal.
Online mastering to delivery
Master with AI Mastering , verify LUFS and true peak in Audio Analysis , download WAV, then upload to your distributor. See Distribution After Mastering .
Release-ready exports Master and download WAV with platform-aware loudness.
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