HD Advisor February 4, 2011 - Page 2 - High-Def Digest Forums
Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 02-05-2011, 02:42 PM
Former Member
 
Join Date: Jul 2007
Posts: 21,462
Default

Josh, is that your senior picture? kinda see some resemblance there, need to photoshop a beard on to be sure.
Reply With Quote
  #12  
Old 02-05-2011, 03:58 PM
AV_Integrated's Avatar
Senior Member
 
Join Date: Oct 2006
Posts: 7,153
Default

Quote:
Originally Posted by AndersT2 View Post
It is a good thing to know about, but most receivers do a better job than the PS3 on the decoding, even it should be the same since it just unpacks the tracks.
I hadn't heard that before. Are there any tests you've found online that compare the audio quality with different receivers decoding HD audio streams vs. players doing the decoding? I would really like to read about the tests which have been done to show the differences. Thanks!
Reply With Quote
  #13  
Old 02-05-2011, 04:21 PM
gravis778's Avatar
Senior Member
 
Join Date: Jun 2010
Posts: 1,639
Default

Quote:
Originally Posted by AV_Integrated View Post
I hadn't heard that before. Are there any tests you've found online that compare the audio quality with different receivers decoding HD audio streams vs. players doing the decoding? I would really like to read about the tests which have been done to show the differences. Thanks!
He may be refering to the concept of audio jitter, which has been addressed here before. The idea is, if the PS3 is unpacking the audio, the PCM audio is at a higher bitrate than the DTS and DD soundtrack, meaning that more data has to be transfered over the cable, which COULD result in dropped packets and packets arriving in the wrong order. However, I have never experienced this, nor known anyone who has. If such a thing as audio jitter existed, it would be EXTREAMELY obvious, like a scratch on a cd, or like those pops and glitches you hear in Internet audio. Anyone who states that there is an audible difference between decoding internally, sending PCM to your reciever, and between bitstreaming to the reciever, has fallen victim to the Placebo effect.
Reply With Quote
  #14  
Old 02-05-2011, 06:19 PM
Senior Member
 
Join Date: Sep 2007
Posts: 234
Default

Both mayor hifi magazines in Norway have mentioned this. And I have testet it myself with my equipment. I do want to use internal decoding in my main player (Oppo BDP-83), but doing it in my Marantz AV8003 do sound a little better. And my PS3 fat is way worse than the Oppo in sound quality (Yes I have it setup to send HD over PCM)
Reply With Quote
  #15  
Old 02-05-2011, 11:22 PM
AV_Integrated's Avatar
Senior Member
 
Join Date: Oct 2006
Posts: 7,153
Default

Don't get me wrong, but I would prefer to see some actual measurements with lab equipment if those reviews and results exist. You know, not that your setup may not be providing you with the exact results you are stating, but a lot of people buy Monster and Bose because they also know that sounds better. Moreso, people will buy $500 speaker cables and use cable risers as well. So, it's important to me that there is documentation to support statements made which might be considered questionable.
Reply With Quote
  #16  
Old 02-06-2011, 01:00 AM
Senior Member
 
Join Date: Dec 2008
Posts: 435
Default

The only players I've heard make an obvious perceivable difference in decoding vs. bitstream are the Toshiba HD DVD players of yesteryear, or at least the XA2. The reason for the difference? PCM audio goes through the mixer, and has speaker distances and bass management applied to it within the player. There's no way to disable it either. It jacks up audio pretty bad, since the receiver's own identical processing is repeating the process but assuming it's working from the original source.

Jitter nonsense aside, it's actually not possible for one device to be "better at decoding" than another. Dolby and DTS design and implement the decoding algorithms for a particular piece of hardware--this way, trade secrets don't get out. This is one reason SoC are so popular--if you used your own chip, you'd have to send it to Dolby and DTS to get decoders, among other expenses. You can bet that Dolby and DTS make sure their product works the same on everything that does their codecs.
Reply With Quote
  #17  
Old 02-06-2011, 12:50 PM
Josh Z's Avatar
Senior Member
 
Join Date: Mar 2007
Posts: 11,925
Default

Quote:
Originally Posted by project-blu View Post
Josh, is that your senior picture? kinda see some resemblance there, need to photoshop a beard on to be sure.
Scarily, yes, that's right from the ol' yearbook.
__________________
Josh Z
Former Writer/Editor, High-Def Digest
My opinions are strictly my own and do not necessarily reflect those of my employers, whoever they may be..
Reply With Quote
  #18  
Old 02-07-2011, 01:28 AM
Senior Member
 
Join Date: Jun 2009
Posts: 735
Default

This Laserdisc question has made me want to finally track down an RF Demodulator and fire up my player. It's 2011, I really shouldn't be having these impulses!

I used to be schooled up on this but now I'm pretty rusty. I have the UK Star Wars Definitive Collection CAV set, and it is only in Stereo. I'm wondering, was the original trilogy - non special editions - ever released on Laserdisc with a 5.1 soundtrack?

Also, thanks for mentioning that issue with the Toshiba HD DVD player - do you know if it is also a problem on the EX1?
Reply With Quote
  #19  
Old 02-07-2011, 04:54 AM
CriticalMass's Avatar
Senior Member
 
Join Date: Aug 2007
Posts: 505
Default

So... you actually come across new Laserdisc owners, Josh???

My laserdisc collection used to be my pride and joy, now it just gathers dust and depresses me when I think of how much money I wasted on LD's (Like $300 for the 'Alan Smithee' version of Dune). But those were the days when a 'boxed set' used to mean something!!

Spader, to the best of my knowledge, the original theatrical cuts of the Star Wars trilogy never released again after this Definitive Collection, which I also still own. Although the theatrical trilogy did turn up on DVD, it was not an official release, and I think were taken from these LD's as the source.
Reply With Quote
  #20  
Old 02-07-2011, 05:43 AM
Senior Member
 
Join Date: Jun 2009
Posts: 735
Default

Many thanks, that's good to know - I thought perhaps the other versions had better sound than mine and I would have to rebuy them again on LD to get them in surround.

I actually set up my Laserdisc player this morning, couldn't sleep and figured I would finally see what they looked like on the HD TV. Was very pleasantly surprised now good Star Wars looked! I'm genuinely excited to go back and watch the original trilogy again on LD! My Sony amp does a brilliant job of turning the stereo into 5.1.

I tried running the SVideo of my Pioneer CLD-925 straight into the TV, going to see about running the composite out into my amp and see how the upsampler does with the signal and if there's any improvements. Also got some polipods going spare that should help with the ferocious rumble the player has.

Something I was wondering, if I go the svideo route, if I were to hook up my HDD DVD player to the SVideo and usal a HD Basics disc to set the picture of that in, should that be OK for the LD? I don't think I have any good LD test discs. I may have on an extra somewhere, but have to check.

Sorry for turning this into a Laserdisc fest, here are some music related numbers that might help you out Josh if you are desperate.
Current 93
96 Tears
99 Luftballons
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
HD Advisor February 25, 2011 Attebery Home Theater Gear 9 02-28-2011 09:40 AM
HD Advisor February 18, 2011 Attebery Home Theater Gear 14 02-21-2011 12:19 PM
HD Advisor February 11, 2011 Attebery Home Theater Gear 18 02-14-2011 09:55 AM
HD Advisor January 14, 2011 Attebery Home Theater Gear 7 01-17-2011 09:18 AM
HD Advisor January 7, 2011 Attebery Home Theater Gear 20 01-08-2011 02:48 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off