Loudness Range (LRA) is a measurement designed to describe variations in perceived loudness throughout an audio recording.
Why does LRA matter?
Two tracks can have the same integrated LUFS while having very different loudness profiles.
One might remain relatively consistent from beginning to end. Another might contain quiet verses, loud choruses and large transitions.
LRA helps provide context for those differences.
Does a high LRA mean the master is better?
Not necessarily.
A high LRA can be completely appropriate for orchestral music, cinematic material or productions with significant intentional dynamics.
A low LRA can also be intentional in genres where a dense and consistent presentation is part of the sound.
What can a very low LRA indicate?
A very narrow loudness range may indicate that the recording has been heavily compressed or limited, although the measurement alone cannot determine the exact processing used.
What can a high LRA indicate?
A high LRA means there is substantial variation in loudness throughout the recording. That may be intentional, but it can also be useful to investigate when the goal is consistent playback.
Use LRA with other measurements
LRA becomes much more useful when viewed alongside integrated LUFS, True Peak and PLR.
The goal is not to achieve a specific LRA number. The goal is to understand the dynamics of your recording.
LoudCheck measures Loudness Range alongside integrated loudness and other mastering metrics.