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Old 1st September 2016, 11:31   #15  |  Link
tebasuna51
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Join Date: Feb 2005
Location: Spain
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Quote:
Originally Posted by raffriff42 View Post
I wonder if the source has out of phase channels, causing phase cancellation & low volume when mixed together. Or a very loud LFE channel, pushing down the level of the overall mix when normalised.
I agree with your 2 reasons, even a little error in decoder can produce peaks than prevent than Normalize work.

Sometimes a very simple downmix like:

a=LWLibavAudioSource("D:\tmp\sample5.1.aac")
f = GetChannel(a, 1, 2)
c = GetChannel(a, 3, 3)
MixAudio(f, c, 0.3)

can work better (we can test other values than 0.3 for mix)
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