![]() I checked the AAC audio with ffdshow and foobar2000. Using a PCE to encode channel layout "5.1(side)" The ffmpeg log file says the right thing (it's attached below). report -i "D:\TEST.mkv" -y -threads 1 -c:v copy -c:a aac -cutoff 20K -b:a 256K "D:\TESTed.mkv" I used the following command line (you can ignore the -y and -threads arguments). The LFE & surround channels are empty, but that doesn't matter, as everything seems okay. That sort of thing is normal and doesn't indicate the channels have been "swapped", so to speak. These days, it displays them in their encoded order (different formats use different channel orders).īut after it's encoded as AAC it'll display as These days (mainly due to 7.1ch becoming common) "Side L/R" are commonly used for the 5.1ch surround channels, but "Side L/R" or "Back L/R" shouldn't matter, which possibly just leaves "Side: C" as an apparently oddly labelled LFE channel.īy the way, MediaInfo previously displayed the channel layout using the wave file channel order, regardless of the audio format. You'll see the first six channels cover the 5.1ch audio layout if "Back L/R" are used for the surround channels. If you look at the wave file channel order here: "Side L/R" and "Back L/R" are fairly interchangeable for 5.1ch audio. How are you determining the channel positions? Are you using an old version of MediaInfo? Can you upload small samples of the source and output? ![]()
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