downmix overflow

[Delta2]

Hi

Don't know what I'm doing wrong

I have this Besweet script

besweet.exe -core( -input "audio.ac3" -output "bes_audio.ac3" ) -boost( /b2=5 ) -azid( -g max ) -ota( -fs 48000 -r 960 1001 ) -ac3enc( -b 320 -6ch )

and I get a lots of DOWNMIX OVERFLOW

00:45:14.821] W7: Downmix overflow (2: +0.3dB)
00:45:14.832] W7: Downmix overflow (0: +0.3dB)
00:45:14.837] W7: Downmix overflow (2: +0dB)
00:45:14.848] W7: Downmix overflow (2: +0.4dB)
00:45:14.896] W7: Downmix overflow (2: +0.2dB)
00:45:14.906] W7: Downmix overflow (2: +0.2dB)
00:45:14.933] W7: Downmix overflow (2: +0.2dB)
00:45:16.394] W7: Downmix overflow (2: +0dB)
00:45:16.405] W7: Downmix overflow (2: +0dB)
00:45:16.416] W7: Downmix overflow (2: +0.2dB)
00:45:16.421] W7: Downmix overflow (2: +0.2dB)
00:45:16.437] W7: Downmix overflow (1: +0dB)
00:45:16.453] W7: Downmix overflow (2: +0.2dB)
00:45:16.464] W7: Downmix overflow (2: +0.2dB)
00:45:16.474] W7: Downmix overflow (2: +0dB)
00:45:16.480] W7: Downmix overflow (2: +0.2dB)
00:45:16.485] W7: Downmix overflow (2: +0dB)
00:45:16.490] W7: Downmix overflow (2: +0.2dB)
00:45:16.506] W7: Downmix overflow (2: +0dB)
00:45:16.533] W7: Downmix overflow (0: +0.2dB)
00:45:16.538] W7: Downmix overflow (2: +0dB)
00:45:16.544] W7: Downmix overflow (2: +0.1dB)
00:45:16.549] W7: Downmix overflow (2: +0.2dB)
00:45:16.560] W7: Downmix overflow (2: +0.1dB)


lots of them

what's wrong ?

It is a AVI with AC3 audio

[Skelsgard]

It just means that there would be an overflow of X amount in those sections when the file is downmixed (don´t know specifically using wich matrix: DPL/II, 2.0, etc). But if u´re not downmixing then it doesn´t matter.
It will matter if u plan to listen to the 6ch AC3 thru 2ch speaker, cause then downmixing will be needed, but if u can set a custom downmix matrix (i.e. AC3Filter, ffdshow) then the control on the overall track volume is up to you. Overflow can derive into digtal clipping or damage of speakers when too high, but IMHO your values of overflow are too low to actually even clip anything at all.
I´ve had values of up to 2dB without a problem when playing the file.
Don´t swet it :).
P.D. If it´s a movie, then u don´t need the -fs param (since it´s already 48000). I personally don´t like the boost option, if DRC is needed I rather let AC3Filter deal with it.