Does Audyssey remove the need of THX processing - AVS Forum
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post #1 of 17 Old 06-19-2012, 07:37 AM - Thread Starter
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Hi Folks,

Seeking some advice or even better experience. I have a great, but older Denon amp (the European version of the 5800 with upgrade). And am thinking of getting the 4520 when it comes out.

I will clearly lose the THX certification. I am not to worried about the loss of the 'badge' for the power amps, as I have several THX power amps I can use for the front array if needed.

I am more worried about losing the THX post processing, re-equilisation, timber matching, etc.

I use THX ultra2 Cinema mode for most movies as I find this does a great job of filling in the surround back channels when they are not actually encoded.

Will Audyssey take care of all this THX post processing or not, and if it does how well does it do it ?

Thanks
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post #2 of 17 Old 06-19-2012, 09:03 AM
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Im no expert in this area but I know someone who is one of the best Home Theater designers in the world.

In fact I went with him about a decade or more back to Skywalker ranch to meet with the lead engineer for the Home THX project when the THX standard was rolled out to the home theater space. It was a big cutting edge deal back then and it blew out our socks off.

But times have changed and other audio developer muscle has been brought to bear in the market.

Recently I too was interested in THX right now so I asked my friend about it, he told me that the importance or relevance of THX has steadily diminished over the last few years and that he would see no need to have it on his "must have" shopping list right now.
His theaters run from 1 - 8 million dollars for just a room. His client list is pretty impressive and extends around the world .... in these matters, I take him at his word.

For what its worth.
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post #3 of 17 Old 06-19-2012, 01:19 PM
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Quote:
Originally Posted by cmoore55 View Post

Im no expert in this area but I know someone who is one of the best Home Theater designers in the world.
In fact I went with him about a decade or more back to Skywalker ranch to meet with the lead engineer for the Home THX project when the THX standard was rolled out to the home theater space. It was a big cutting edge deal back then and it blew out our socks off.
But times have changed and other audio developer muscle has been brought to bear in the market.
Recently I too was interested in THX right now so I asked my friend about it, he told me that the importance or relevance of THX has steadily diminished over the last few years and that he would see no need to have it on his "must have" shopping list right now.
His theaters run from 1 - 8 million dollars for just a room. His client list is pretty impressive and extends around the world .... in these matters, I take him at his word.
For what its worth.

I'd agree with that.
John

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post #4 of 17 Old 06-19-2012, 02:30 PM
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Quote:
Originally Posted by kdp99 View Post

Hi Folks,

Seeking some advice or even better experience. I have a great, but older Denon amp (the European version of the 5800 with upgrade). And am thinking of getting the 4520 when it comes out.

I will clearly lose the THX certification. I am not to worried about the loss of the 'badge' for the power amps, as I have several THX power amps I can use for the front array if needed.

I am more worried about losing the THX post processing, re-equilisation, timber matching, etc.

I use THX ultra2 Cinema mode for most movies as I find this does a great job of filling in the surround back channels when they are not actually encoded.

Will Audyssey take care of all this THX post processing or not, and if it does how well does it do it ?

Thanks
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post #5 of 17 Old 06-19-2012, 04:21 PM
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I prefer Audyssey processing myself.
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post #6 of 17 Old 06-19-2012, 07:43 PM
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Originally Posted by pokekevin View Post

Pro logic 2x will suit your needs
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Originally Posted by rnatalli View Post

I prefer Audyssey processing myself.
I like mint. tongue.gif

These have nothing to do with one another. The OP has a 7.1 system, and Audyssey has no means to create rear surrounds from 5.1.
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post #7 of 17 Old 06-20-2012, 06:03 AM
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Quote:
Originally Posted by Roger Dressler View Post

I like mint. tongue.gif
These have nothing to do with one another. The OP has a 7.1 system, and Audyssey has no means to create rear surrounds from 5.1.

Every 7.1 system I've owned has audyssey modes that can create 7.1 out of 5.1. My 4311 when running audyssey dsx can create 11.1 from a 5.1 source.
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post #8 of 17 Old 06-20-2012, 06:05 AM
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Only Audyssey DSX can expand 5.1 audio and then only to Front Height and/or Front Wides ... not to rear surrounds as Roger notes.

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post #9 of 17 Old 06-20-2012, 10:09 AM
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Quote:
Originally Posted by jdsmoothie View Post

Only Audyssey DSX can expand 5.1 audio and then only to Front Height and/or Front Wides ... not to rear surrounds as Roger notes.

OK, so how am I able to hear something from my rear surrounds when listening to a 5.1 source?
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post #10 of 17 Old 06-20-2012, 10:11 AM
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Likely using either DD PLIIx or DTS Neo:6.

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post #11 of 17 Old 06-20-2012, 11:50 AM - Thread Starter
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Firstly many thanks for the replies.

Two follow up questions:

With the 5.1 7.1 conversion discussed above, am I correct in assuming that DPL2X is used to create the surround back channels, then Audyssey engaged for room correction etc?


With the version of Audyssey that creates the front high and wide channels, does this also create the surround back ones, or are they not used ?

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post #12 of 17 Old 06-20-2012, 11:59 AM
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Yes to your first question ... no to second. As noted in my post above, there is no Audyssey that creates the surround back channels, rather generally either DD PLIIx or DTS Neo:6 is used. Also as Audyssey MultEQ is an equalization process, it would EQ all of the speakers/sub(s) in the setup first and then the AVR uses whatever on board features are available to pass audio to the various speakers and sub(s).

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post #13 of 17 Old 06-20-2012, 12:52 PM
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Quote:
Originally Posted by jdsmoothie View Post

Likely using either DD PLIIx or DTS Neo:6.

I press the dsx button on my remote and I get sound from all 11 speakers from a 5.1 source.
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post #14 of 17 Old 06-20-2012, 01:09 PM
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What does the front panel display read? You're getting DD PLIIx + A-DSX

234

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post #15 of 17 Old 06-21-2012, 08:15 AM
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Quote:
Originally Posted by jdsmoothie View Post

What does the front panel display read? You're getting DD PLIIx + A-DSX
234

I'm not quoting exactly but it states something like 'Audyssey DSX Wides + Heights'. I get sound from all 11 speakers,
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post #16 of 17 Old 06-21-2012, 08:24 AM
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Right ... so DSX is providing the Front Height/Wide audio and PLIIx is proving the Surr Back audio.

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post #17 of 17 Old 06-21-2012, 12:03 PM
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Quote:
Originally Posted by jdsmoothie View Post

Right ... so DSX is providing the Front Height/Wide audio and PLIIx is proving the Surr Back audio.

OK. Thanks for the info. I didn't realize I had multiple surround modes running at the same time.
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