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Loudness Penalty Studio Desktop App

Comprehensive loudness visualization and preview for online streaming.

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How Does it Work?

See Loudness Penalty Studio in action.

Confidently assess how your music will play back online

With Loudness Penalty Studio, you can...

Visualize the loudness of an album or playlist
with our unique, intuitive Loudness View.
See and hear how loud your music will play online
Assess and compare loudness in context, quickly and easily.
Turn the Loudness Penalty to your advantage
Balance the loudness and dynamics of your music with complete confidence.
Preview alternative versions
Discover the best sound, with and without loudness-matching.
Create custom reference playlists
Build a comprehensive library for easy access.
Know for sure if it's really better
or just louder.

Loudness, Visualized

Instantly see how streaming services play back your music

Loudness matching

Loudness online is complicated and confusing. Loudness Penalty Studio cuts through this confusion, showing you at a glance how much the playback loudness of your music will be changed by YouTube, Spotify, TIDAL, Deezer and Apple Music. Even more importantly, it allows you to hear it, without uploading. Gain new insights and see how loudness can be made to work for you, not against - even with online loudness normalization in place.

Photo of Matt Colton
It's great, super useful and does exactly what it says on the tin. Instant purchase! Matt Colton (Metropolis Mastering)

Penalty or Opportunity?

You decide!

Volume dial

Louder masters are reduced in level by online streaming services to avoid listeners being "blasted" by unexpected changes in loudness. Does it matter? If your music is played back at a lower level, is it really a penalty? Not necessarily, if you make the right choices and test the results. Many people just hope for the best - that their music will still sound fine even after it's been turned down, but with Loudness Penalty Studio you can be sure. Preview your music in context, before uploading, and decide whether you want to take advantage of the opportunity for more dynamics.

Album vs. Playlist, Spotify vs. YouTube

Know how your music will sound no matter where it's played

Album vs. track mode

Whether your music is played back in a playlist or in "album" mode will affect how its loudness is adjusted. Will it stand out amongst the competition or fall flat? Loudness Penalty Studio allows you to build a library of reference material and quickly see how your music will sound in a playlist. By testing your music with multiple streaming services against a variety of other music, you can be sure that it will sound great no matter where it's played.

Photo of Ian Stewart
Loudness Penalty Studio is great! I can definitely see it becoming part of my workflow to audition how things will compare on streaming platforms and in different contexts. Ian Stewart (Flowtown Mastering)


  • Unique, intuitive Loudness View visualization
  • Analyze large groups of files
  • Build and save custom reference playlists
  • Compare Album and Track Mode loudness matching
  • Compare and optimize results for the most popular streaming services
  • Patent Pending (US Provisional Patent Application No. 63/567,059)


Loudness Penalty Studio is a standalone desktop application (not a plugin).

  • macOS 10.11 or later (64-bit Intel or Apple Silicon)
  • Windows 7 or later (64-bit only)

  • Available for immediate download
  • Pay with credit card or PayPal
  • 60 day money-back guarantee
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