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Stream FFMPEG audio output configuration
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umek  
#1 Posted : Friday, January 24, 2020 6:07:10 AM(UTC)
umek

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Hi,

As we all know you can set in Stream settings Audio Channels to 2ch ( Master, BusA, etc) and 4ch (MA) and 6ch (MAB).

The bug/problem is when you want to use more than 2ch as FFMPEG uses the default channel layout (FL+FR+FC+LFE+BL+BR).

That layout makes the 4th channel (LFE) useless as it has a low-pass filter.

Is it possible to use channel layout flag -channel_layout octagonal (FL+FR+FC+BL+BR+BC+SL+SR) ?

That way you can use all 6ch audio in FFMPEG rtmp output.

And also include the option MABC in Audio Channels settings?

Thank you!
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admin  
#2 Posted : Friday, January 24, 2020 12:39:29 PM(UTC)
admin

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Hi,

This is not a bug as vMix only officially supports 2 channels for streaming
as pretty much all CDNs require this.

Regards,

Martin
vMix
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