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Topic: Peak Level and ReplayGain, estimating dynamic range loss? (Read 2423 times) previous topic - next topic
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Peak Level and ReplayGain, estimating dynamic range loss?

ORIGINAL:
Peak Level: 99.2%
ReplayGain: -3.28 dB

REMASTERED:
Peak Level: 98.5%
ReplayGain: -6.04 dB

How do you estimate the loss of dynamic range?

Thanks

Peak Level and ReplayGain, estimating dynamic range loss?

Reply #1 –
(98.5/100 * -6.04) + (99.2/100 * -3.28)  = -2.7

This can only be a rough estimate though. You don't know how the peaks relate to the measured dynamic range (i.e. whether the file peaks regulary or there's a single preeminent peak).

Peak Level and ReplayGain, estimating dynamic range loss?

Reply #2 –
You also don't know if there were changes in things like EQ and mixing that could affect the RG level without providing much of an effect on dynamic range.
 

Peak Level and ReplayGain, estimating dynamic range loss?

Reply #3 –
You might want to use an actual dynamic range measurement tool. If you're using foobar2000, you might find the [a href='index.php?showtopic=88373']Dynamic Range Meter[/a] plug-in useful. I also use [a href='index.php?showtopic=77490']foo_wave_seekbar[/a], a side effect of which is visual confirmation of some of the more severe dynamic range issues, especially in Direct2D mode.