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Topic:
7.1 not possible over optical digital?
This thread has 6 replies. Displaying all posts.
Post 1 made on Monday August 18, 2014 at 11:55
Ernie Gilman
Yes, That Ernie!
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I just heard a claim that could be what I've been reading for years, but it never hit me quite as simply or clearly as what I just heard:

"It is not possible to send 7.1 over optical."

I was talking with Tech Service at VidaBox about their little HDMI to component converter and I asked about whether 7.1 was available on the optical out. They're clear, of course, that you don't get it on the left and right analog outs!

The tech didn't say "our product doesn't give you 7.1 via optical," he said "you can't get 7.1 via optical." I specifically asked him about that and he confirmed, yep, it just is not possible. It's not just a drawback of our equipment.

That sure is in harmony (sorry to use that word) with all the comments I've seen over the years that this and that product don't give you 7.1 on the optical output... I just never heard it stated so plainly.

I thought, however, that Blu-rays and such with optical outputs definitely output at least 5.1 signals, probably 7.1; the VidaBox guy said only stereo is possible.

Comments?
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 2 made on Monday August 18, 2014 at 12:00
brandenpro
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No.

[Link: en.wikipedia.org]
Post 3 made on Monday August 18, 2014 at 12:25
vwpower44
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Optical can do 7.1, but not the loss-less versions available when using HDMI.
Stay Hungry, Stay Foolish...
Post 4 made on Monday August 18, 2014 at 12:32
cb1
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No tru Dolby or dts master
why have a nice system if you cant operate it, program the remote the right way the FIRST time!
Post 5 made on Monday August 18, 2014 at 13:04
Fins
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Welcome to 2010
Civil War reenactment is LARPing for people with no imagination.

OP | Post 6 made on Monday August 18, 2014 at 13:10
Ernie Gilman
Yes, That Ernie!
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Posts:
December 2001
30,104
Thanks.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 7 made on Monday August 18, 2014 at 21:09
Daniel Tonks
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While he's probably taking 7.1 to specifically mean lossless/HD audio formats, I don't think there are any discrete lossy 7.1 formats compatible with optical either, are there? Certainly you can decode up to 7.1 from even stereo... but I think the "best" you can get in discrete channels over traditional connections is DTS-ES Discrete 6.1 - but it was never very popular.


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