Video Asylum

Is it like the difference between a cheerleader and acknowledging capacity as critical in HD media?

12.146.151.254

Jazz Inmate

In Reply to: RE: There's a difference between a lie and an error, but I don't expect you to understand that posted by racerguy on December 06, 2007 at 11:13:49

Seems like you aren't a demon for details and it's costing you.

All I did when we went to Dolby Labs was listen to True HD vs lossless PCM audio. You'd have to be pretty dang dense to characterize that the way you just did.
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"I have found that if you love life, life will love you back." -Arthur Rubinstein (1887-1982)

Follow Ups:

You really ought to be careful about cavalierly calling people liars, Jazz... - racerguy 11:52:51 12/06/07 (4)
...because you can be accused of the same thing. In your case it's an accurate label.

> > All I did when we went to Dolby Labs was listen to True HD vs lossless PCM audio. < <

Liar. You went with a Sony employee to see the preparation of a Blu-ray demo disc. You even said so yourself in previous posts.
- I've heard the same "propaganda" from another source..... - oscar 19:11:52 12/06/07 (2)
  that TrueHD may not be as "transparent" to the master as Dolby would have you believe. That would normally be pretty hard to believe until you consider Dolby employs some nonsense called "Dialog normalization" which to me implies digital volume control and screwing around with the original audio presentation.
  - Dolby Digital has always had Dialog Normalization metadata - racerguy 20:19:18 12/06/07 (1)
    TrueHD also has dialnorm. It's never been a problem in the past, so I wouldn't be so quick to blame problems on the TrueHD codec like some people are trying to do. Rather, it's more likely that problems people are experiencing are due to crappy implementations of the TrueHD decoder, and player limitations, especially on Blu-ray players.
    As I noted in a previous post about TrueHD on the Panasonic players, 'if you playback TrueHD on the Panasonic DMP-BD10 and BD10A players via the analog outs, the player overrides speaker size/distance settings, making them all "large" and equidistant. Also, if the number of speakers doesn't match what the soundtrack is configured for (i.e. it's a 7.1 and you only have 5.1), you'll lose information.'
    That could certainly cause "transparency" problems. I suspect the Panasonics aren't the only players to have these kinds of implementation issues.
    
    Edits: 12/06/07 12/06/07 12/06/07
    - True, I trust my LG's decoding implementation not at all... - oscar 06:03:49 12/07/07 (0)
      I can live with dialnorm for lossy DD, but I'm far less sure about it for an alleged lossless audio format. While I don't have any direct experience on the subject, I've heard from a couple of sources, the use of dialnorm during the TrueHD encoding process results in a decoded end-result which may not be transparent to the master (and it can't be bit for bit if it actually screws around with the volume levels). How much of this is FUD and/or improperly-implemented decoding in the players has yet to come out.
- You really ought to be careful about cavalierly calling people cheerleaders, racer... - Jazz Inmate 13:10:30 12/06/07 (0)
  ...because you can be accused of the same thing.
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  "I have found that if you love life, life will love you back." -Arthur Rubinstein (1887-1982)

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