Video Asylum

RE: precursor to blu audio

69.196.183.22

cfraser

A

In Reply to: RE: precursor to blu audio posted by Joe Murphy Jr on May 18, 2010 at 21:59:04

Hmmm, sure wish that was 24/96 stereo. I always got/get annoyed when DVD-A is 24/48...sure it's "high resolution", but low bit-rate. I mean when we can already get 24/192 stereo tracks. I still mostly prefer to play the stereo tracks over the (lossless) surround tracks when I have a choice. A really good pop/rock surround mix that isn't gimmicky is still a rare thing IMO.
Do I need anything special/new to play 3.0 Blu?
I always thought Petty/Heartbreakers CDs sounded pretty good, certainly well above average for the "pop" genre. They have a certain clarity to them that I like.

Edits: 05/18/10

Follow Ups:

Actually. . . - Chris from Lafayette 09:21:40 05/20/10 (2)
. . . 24/48 is a HIGH bit rate (bit depth) - the 24 refers to the number of bits per sample. The 48 and the 96 are the sample rates. In my experience, I've found that the bit depth is actually MORE important than the sample rate. The best DVD-A's I've ever heard (on the Nishimura label - classical repertoire) are only 24/48. Of course, everyone's MMV.
- I mis-spoke there - cfraser 12:22:54 05/20/10 (1)
  and meant "sample rate" not "bit rate", like in the subsequent post.
  
  I guess what I'm saying is that I tend to like higher sample rates. I'd almost certainly rather have 16/96 (or 20/96) if I could get it over 24/48, if we have to keep the bit-rate lower compared to 24/96 or 24/192. I'm not overly impressed by 24/48 over CD myself for the type of music I listen to, both are adequate though, "more" would be nice.
  - samples greater than bits - Joe Murphy Jr 21:57:51 05/20/10 (0)
    That's my observation as well.
the source - Joe Murphy Jr 15:55:46 05/19/10 (5)
I don't know what bit depth or resolution was used for the master, so I can't say for sure. If it was 24/48, then the Blu-ray gives it to you. However, if they mastered at a higher resolution, then there was no reason to downsample.
- RE: the source - cfraser 18:11:18 05/19/10 (4)
  True. But if they have lossless for the surround master, one might expect... Didn't mean to sound so negative about it all, but 24/48 stereo isn't really much better than a CD, and has much more limited playability. I have a preference for sample rate over the bit depth, to tell the truth, if I had to choose one over the other...but we don't really have to choose with BD for any technical reason.
  Obviously the selling point is the lossless surround track, but I just wish they'd truly consider the *audiophiles*, as inferred in the link, and offer high quality stereo instead of something that's really more for the AV/HT-philes who are most likely set up to play lossless surround. I guess it makes marketing sense though, considering most people (maybe not here) buy BDPs for video.
  P.S. now that I think of it, how was the audio on the R30 BD? I only have the DVD, still thinking of "upgrading" even though they omitted the decent 2ch DVD audio track on the BD. I like that concert footage better than S&A's, shows more interesting close-ups of the band etc., more musician action and less crowd. Think I like the music selection overall better too.
  
  Edits: 05/19/10 05/19/10
  - RE: the source - Hwkn 18:52:51 05/19/10 (3)
    From what i've read elsewhere MOJO was recorded using equipment that has as it's highest sampling rate 48k so that's why it's 24/48 not 24/96 or 24/192.
    - RE: the source - cfraser 19:29:18 05/19/10 (2)
      Makes sense, I think that's what's typically used for DTS-HD MA which seems to be the intended highlight of the release.
      - sample rate - Joe Murphy Jr 21:24:39 05/19/10 (1)
        
        In Reply to: RE: the source posted by cfraser on May 19, 2010 at 19:29:18
        
        Today's movies are predominantly recorded at 24/48, so that's why you normally see DTS-HD MA with that resolution. As for music (studio, concerts), one expects higher sample rates (at least audiophiles do). But as was stated above, if 48kHz was a limitation of the recording equipment, that's all you are going to get -- unless they upconvert the sample rate to something higher.
        
        I'll try to remember to check out my R30 BD when I get back home. From memory, I didn't notice anything about the audio that was off.
        
        Blu-ray Profile 3.0 (audio only) should include the color options so that you can just put the disc in and select the format that you want (stereo, surround, etc) without any monitor involved. This is currently being done with the newer releases from AIX Records, even though they are not Profile 3.0 discs. Below is a link to discussion on this topic:
        colors (Open in New Window)
        
        Now they go and do something sensible like that... - cfraser 12:14:21 05/20/10 (0)
        
        In Reply to: RE: sample rate posted by Joe Murphy Jr on May 19, 2010 at 21:24:39
        
        after I've set up a small LCD just for DVD-A/SACD so I can see details of what I'm listening to, without turning on the big (and noisy) display.

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