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Old 1st November 2019, 19:40   #1  |  Link
Overdrive80
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Muxing four channels in flac

Hi,

I am trying create one flac file with four channels, without anything of channel layout.

Its objective is not to be compatible with its reproduction is simply to save editions between channels. There is fusion between channels but in order not to lose the original file and not have it in another file, I wanted to save it this way.

Really, the final file would be stereo audio. I understand that they say that it is not normal, but that is not the debate.

I got something similar with * .mov format, but I wanted to use flac.

Thanks in advance.
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Old 2nd November 2019, 11:05   #2  |  Link
tebasuna51
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Inside flac must have a channel layout, the default for 4 channels is 2.2.0:
Quote:
4 channels: front left, front right, back left, back right
You can use:

Quote:
ffmpeg -i chan_1 -i chan_2 -i chan_3 -i chan_4 -filter_complex "join=inputs=4:channel_layout=FL+FR+SL+SR:map=0.0-FL|1.0-FR|2.0-SL|3.0-SR" 4_channel.flac
and remember, when extract, the order.
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Old 4th November 2019, 18:50   #3  |  Link
Overdrive80
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Ok, thanks so much, I will test it. Regards.
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