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Author Topic: Issues with Multichannel Flac  (Read 1419 times)

OlGreenEyes

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Issues with Multichannel Flac
« on: May 16, 2018, 04:13:47 pm »
4 channel FLAC files I decoded with DVD Audio Extractor are only playing back in stereo even though JRiver shows them as all 4 channels. They play back fine in VLC.

This seems to effect only 4 channel flac for some reason (quad rips). And somehow one quad rip is showing 5 channels -- there's nothing in the center channel, but the rears are decoding properly.

Any ideas? Thanks much in advance!

Rich
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OlGreenEyes

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Re: Issues with Multichannel Flac
« Reply #1 on: May 16, 2018, 07:34:34 pm »
UPDATE: Because I'm compulsive, as i'm sure many of you are, I've been endless messing with settings when I should be working. In the Output Format window, I had Channels set to "Same number of channels" as I didn't want to do any up mixing.  But when changed to 5.1, suddenly my 4 channel FLAC files started decoding right (I tested with a familiar track).

Is this a quirk/bug? Shouldn't "Same number of channels" still properly play back a 4 channel FLAC to the right 4 channels? I'm confused!
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RD James

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Re: Issues with Multichannel Flac
« Reply #2 on: May 16, 2018, 09:55:44 pm »
Many devices only support multichannel formats in a 5.1 layout (6 channels) and not 4 or 5 channel signals.
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OlGreenEyes

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Re: Issues with Multichannel Flac
« Reply #3 on: May 16, 2018, 10:05:36 pm »
I see. Thanks. I guess it's my receiver then so I have to tell JRiver to send out the signal to 5.1. It sounds like the rears are accurate so I guess it's fabricating a center track where none exists on the 4.0 stuff. If I check "move center to front l/r" will the center channel still play correctly from actual 5.1 sources?

I haven't messed with digital surround audio much using my computer. I have an analog quad setup here and a collection of SACDs and DVDa's I'm trying to port over to my mac.
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OlGreenEyes

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Re: Issues with Multichannel Flac
« Reply #4 on: May 16, 2018, 10:27:32 pm »
Well I answered my own question... no. It will fold all center channel signals into L/R. I see I can create different profiles and load them to individual tacks in the tagging feature in the advanced section. So I made a "quad" profile and assigned that to all my 4 channel stuff.

I'm super impressed how customizable this software is. I haven't yet even waded into all the room correction stuff, etc.....
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