Master check for streaming

Master analyzer: check your master before release

Upload your finished master and find out how it will behave once Spotify and Apple Music normalize it: integrated loudness, true peak, clipping, dynamics. A clear verdict before you send it to your distributor.

10 free credits, one full analysis · No credit card required

What the master analyzer checks

Loudness is measured to the ITU-R BS.1770 standard, the one streaming platforms use.

Integrated LUFS

Your loudness against the level platforms play back, about -14 LUFS on Spotify

True peak and clipping

Inter-sample peaks that distort once the file is encoded for streaming

Dynamic range

How much punch is left after limiting, compared with your genre

Tonal balance

Lows, mids and highs of the finished master against your genre

Stereo and mono

Width and mono compatibility on phones and small speakers

Streaming verdict

Ready or not, with the corrections to apply or to ask for

How it works

01

Upload your master

WAV, MP3 or FLAC up to 150 MB. Upload the file you plan to deliver, ideally the WAV.

02

The analysis runs

Signal measurements and AI listening run in parallel. The report is ready in about three minutes.

03

Read the verdict

See whether the master is ready and, if not, what to change: level, limiting, peaks or balance.

What does a master analyzer check?

A master analyzer measures the finished stereo file you are about to deliver. The main figures are integrated loudness in LUFS, true peak in dBTP, clipping and dynamic range. MusicPulse measures loudness to the ITU-R BS.1770 standard, then reads the result against your genre.

A club track and a folk song do not aim for the same loudness. The report tells you whether your level makes sense for the genre, not only whether it matches a single number.

What happens to your master on streaming platforms

Streaming services normalize loudness. Spotify plays tracks back at about -14 LUFS, Apple Music at about -16 LUFS when Sound Check is on. A master pushed far above that level is simply turned down, and what remains is the distortion and the flattened dynamics of heavy limiting.

True peak matters for another reason. Platforms encode your file to a lossy format, and peaks that sit at 0 dBFS can clip after encoding. Leaving about 1 dB of true peak margin, the value used by the MusicPulse mastering presets, avoids it.

What to do with the verdict

If the master is ready, you can deliver it and move on to playlists. If the report flags loudness or peaks, the correction belongs in mastering: MusicPulse online mastering sets the level for Spotify, Apple Music or Tidal and verifies the result.

If the report flags mud or balance, the correction belongs in the mix. Go back to the session, fix the mix, then master again: a master cannot remove what the mix put in.

Master analyzer FAQ

What LUFS should my master be for Spotify?+

Spotify normalizes playback to about -14 LUFS integrated. Most professional masters land between -14 and -8 LUFS depending on genre. The analyzer measures your integrated loudness and tells you whether it makes sense for your genre.

What true peak should a master have?+

A true peak around -1 dBTP is a common target for streaming, and it is the one the MusicPulse mastering presets use. It leaves margin for the encoding that platforms apply to your file.

Is the master analyzer free?+

Every new account gets 10 free credits and one analysis costs 10 credits, so your first analysis is free. After that, the 7-day Artist trial ($4) covers one track, a Release Pass ($19 once) covers one track for 60 days, and Artist covers all your tracks from $20 per month.

What is the difference with online mastering?+

The master analyzer measures a master you already have and tells you whether it is ready. Online mastering produces the master: it processes your mix and sets loudness for the platform you choose. Many artists analyze first, then decide.

Is your master ready for release?

Your first analysis is free. No credit card required.

Analyze your master free