Mastering for Apple Music (LUFS Target, Sound Check, True Peak)

To master for Apple Music, target around -16 LUFS integrated with a -1 dBTP true-peak ceiling, and hand off the highest-quality file you can - ideally a 24-bit WAV at your native sample rate. Apple's loudness normalization feature, Sound Check, turns everything toward a consistent playback level a little quieter than the -14 LUFS most other platforms use, so slamming your master loud buys you nothing. What actually helps is a clean, controlled master with true-peak headroom that survives Apple's AAC encoding intact.

How Apple Music normalizes loudness

Apple Music uses Sound Check to level playback so tracks and albums sit at a similar loudness instead of jumping in volume between songs. When Sound Check is on - and it often is by default - a master that is much louder than Apple's reference simply gets turned down on playback. So the loudness race is settled at the platform, just like on Spotify, except Apple's target sits a touch quieter, generally cited around -16 LUFS integrated.

The practical takeaway: do not crush your master trying to be the loudest track in someone's library. Under Sound Check, your -9 LUFS master and a well-made -16 LUFS master end up at a similar perceived volume - but yours arrived there squashed, with flattened transients and less punch, while the controlled master kept its life. For the wider loudness picture across platforms, read how loud a master should be.

What Mastered for iTunes really means

You will still hear the phrase "Mastered for iTunes," now branded Apple Digital Masters. It sounds like a special loud target, but it is not. It is a set of best-practice guidelines and a certification for delivering a high-resolution master that encodes cleanly into Apple's AAC format. The core ideas are simple and they are just good mastering.

• Deliver high resolution. Provide a 24-bit master at the native sample rate rather than a 16-bit 44.1 kHz file. Apple's encoder works from the higher-resolution source to produce a better-sounding AAC.
• Leave true-peak headroom. Keep peaks below 0 dBTP - a -1 dBTP ceiling - so the AAC encoder does not push inter-sample peaks into clipping. This is the single most important encoding-friendly move.
• Do not over-limit. A master with some dynamic range encodes more cleanly than a brick-walled one. Heavy limiting creates more inter-sample overs and more encoding artifacts.

Apple Digital Masters is not a louder or different-sounding master. It is the same clean, headroom-respecting master that already works everywhere else - just delivered at high resolution so the encode is as transparent as possible.

Why true peak matters even more here

Apple Music streams in AAC, a lossy format, and lossy encoding can push your peaks higher than they were in your original WAV. If you master right up to 0 dBFS, the AAC encode can drive inter-sample peaks over the line and add crackle that was never in your file. A -1 dBTP ceiling gives the encoder the room it needs to reconstruct your peaks cleanly.

Set this on a limiter running in true-peak mode - a sample-peak limiter at -1 dB will still let inter-sample overs through because it only watches the samples, not the reconstructed waveform. For the full explanation of inter-sample peaks and why the sample meter under-reads, read true peak explained. For dense, heavily limited material, some engineers go slightly further to -1.5 dBTP, but -1 dBTP is the dependable default.

A practical Apple Music master checklist

Put it all together and prepping for Apple Music looks like this.

• Loudness: aim for around -16 LUFS integrated, measured across the whole song, not just the loudest section. Let the music's genre and energy guide you - dynamic material can sit even quieter and still translate.
• True peak: -1 dBTP ceiling, limiter in true-peak mode.
• File: 24-bit WAV or AIFF at your native sample rate. Do not deliver a lossy source or convert the sample rate on the way out. For the full bounce routine, read how to export a WAV for mastering.
• Dynamics: keep some movement between verse and chorus. A master with life encodes better and survives Sound Check without sounding flat.
• Check the encode. If you want to be thorough, listen to an AAC render of your master, since that is what listeners actually hear on Apple Music.

Lossless and Spatial Audio, briefly

Apple Music also streams lossless ALAC and, for some tracks, Dolby Atmos Spatial Audio. Do not let those tiers change how you master your standard stereo release. Lossless simply means Apple can stream your file without the AAC compression step - a clean, headroom-respecting master benefits from it automatically, with nothing extra to do on your end. Spatial Audio is a separate Atmos mix and master entirely, produced from your multitrack session rather than your stereo bounce, so it is a different project, not a setting you toggle. For the vast majority of releases you are delivering one great stereo master, and that file needs to be clean, controlled and true-peak safe - the lossless and Atmos layers take care of themselves or live in their own workflow.

One master, many platforms

You do not need a separate master just for Apple Music. The good news is that a clean master built around a -1 dBTP ceiling and around -14 LUFS works well on Apple Music too - Sound Check simply turns it down a little toward -16 LUFS, and because it was never crushed, it holds up perfectly. The mistake is mastering hot and hoping for the best. Master with control and headroom once, and the same file serves Spotify, Apple Music, YouTube and Tidal. For the numbers behind every platform, browse the full mastering guides.

Free download: keep the streaming loudness targets cheat sheet - the LUFS and true peak for every platform - right next to your DAW. PNG and printable PDF.