Originally Posted by comfynumb
. . .
Has anyone tried blu-ray audio, and what they think of it? I got the Led Zep one and didn't care too much for the sound of it. There isn't very many of them, that I see anyway.
With Blu-ray disks, if you want to hear the best version of the soundtrack - which has room for more bandwidth than even a DVD-A or an SACD - you have to be careful:
(1) To use the disk's "Setup" or "Language" menu to select the lossless version of the soundtrack (Dolby TrueHD, DTS HD Master-Audio, or LPCM) not the "lossy" compatibility track (conventional Dolby or DTS), as many disks default to the compatibility track
(2) To use multichannel analog cables or an HDMI cable to connect the Blu-ray player's audio to your receiver or amplifier, since optical or coax cables are limited to conventional Dolby and DTS, and will force the Blu-ray player's output section to down-shift back to those even if you've selected the lossless version using the disk's menu
(C) That you've turned "secondary audio" OFF in the player's setup menu, as the vast majority of Blu-ray players will down-shift the audio to conventional Dolby or DTS to be able to mix the two soundtracks together - even if there is no secondary audio track on the disk to mix in!
DVD-A and SACD players tend to default to the lossless version of the sound, but with Blu-ray, each disk sets its own default, and many default to the compatibility track - just as many Blu-ray players are shipped with secondary audio enabled, to avoid an avalanche of support calls from buyers saying "This thing is broken! I can't hear the Picture-In-Picture's soundtrack or the commentary track!"
However, while there are many Blu-ray disks that have 24-bit sound, the vast majority of those - even concert disks - are at 48/24 - very few are 96/24. This is because video production equipment has standardized at a 48 KHz sampling rate for a very long time. 48/24 can sound very good, however, since it can carry a top audio frequency of 24KHz with excellent dynamic range.
You can check what a particular disk's specs are by going to cinemasquid.com
(run by a member of AVS, by the way) and entering the disk's name. When it comes up, click the "specs" link to get a page with the video and audio specs of the disk.
Two producers of 96/24 Blu-ray disks are AIXrecords.com and 2L in the Netherlands. 2L is a classical label, but AIX is heavily into blues, rock, and jazz. They're not a "reissue" label, however - they record musicians themselves.
--PhilEdited by Philnick - 2/20/13 at 3:48pm