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FIX: Mac DVD Player Volume Problems

The Problem When I watch DVDs on my MacBook, I have noticed that the volume increases and decreases based on the loudness of the movie’s audio. This automatic feature is called “dynamic range compression” and is provided by our dear friends at Dolby Laboratories. Sometimes having this compression applied is nice; it can help to […]

The Problem

When I watch DVDs on my MacBook, I have noticed that the volume increases and decreases based on the loudness of the movie’s audio. This automatic feature is called “dynamic range compression” and is provided by our dear friends at Dolby Laboratories. Sometimes having this compression applied is nice; it can help to even out loud and soft sections. When working ideally, you shouldn’t hear the effect at all, the volume will just be more even.

Unfortunately, I’ve found that the built-in one-size-fits-all setting doesn’t always work the greatest for the many different audio tracks found in modern movies. Often, you can hear the audio “pumping” as the compression kicks in and out. Sometimes the volume will be nicely audible for onscreen dialogue, but suddenly gets squashed by a loud noise like a gunshot or explosion. If you’re like me, you want to shut this off. Why even watch an action flick if all the combustion is suppressed?

The Fix

Disable automatic audio compression on the Mac DVD Player application.

Open the DVD Player (Applications > DVD Player) and open up the ‘Preferences’ panel (DVD Player > Preferences). If you have a DVD playing, you’ll have to stop playback (not just pause) before you can change output settings. In the ‘Preferences’ panel, click the ‘Disc Setup’ tab. Under ‘Audio’ make sure the ‘Disable Dolby dynamic range compression’ is checked. This will shut off the automatic volume changes and pass your audio program on through unaffected. Now you can enjoy those explosions in their full dynamic glory!

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