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Channel Mixing / Number of Channels

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whoareyou:
With JRSS off (no upmixing or downmixing) ....
Output configuration of 5.1 and 4 extra channels
10 channel audio file being played back
New channel system

I thought this configuration would configure output with a 5.1 container and 4 extra channels for a total of 10 channels.
Upon playback:
Total of 10 channels
Original input's last 4 channels of audio are missing

When JRSS is off (no downmixing), shouldn't the entire 10 channels be passed while leaving first 6 channels in 5.1 format + the 4 extra channels with the original audio?

Matt:
What if you simply select 10 output channels?

I'm not sure we will map the channels above the 5.1 to the extra channels, but we should map them if you pick 10 channels.

whoareyou:
Yes, when 10 channel is selected all channels are passed through, and this works fine with convolution. 

I was hoping to take advantage of the 5.1 mapping, where empty channels are inserted by JRiver for playback of 5.0 and 4.0,  but also allow for 10 channel source playback all in same zone.   

Matt:
Mixing with the new approach ignores extra channels.

You should be able to use Parametric Equalizer to copy channels 7, 8, 9, etc. to the extra channels.

If there's nothing there, nothing will be copied.

Does that work?

whoareyou:
There doesn't seem to be way to mix from the original channels 7-10 to extra channels as only the base 5.1 or 7.1 channels are available as source channels. 

Also, with 5.0 material a channel seems to be dropped with some extra channel configurations.
I tested a small sample of 5.0 material and played back with 5.1 output with and without extra channels.

5/5.1 4 extra channels and one of the channels is missing on output
5/10 channel ouput and one of the channels is missing on output

5/5.1 and 5/5.1 2 extra channels work as expected.

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