The Dolby A track on 35mm was notoriously poor. Some projectionists have whispered Universal did it on purpose to make the DTS sound that much better.

The LPCM stereo surround track on the laserdiscs are terrific though.

Also there are the Cinema DTS Stereo 2.0 discs for use with theaters that were not ready for discrete sound.

(2020-09-26, 05:52 PM)PDB Wrote: Also there are the Cinema DTS Stereo 2.0 discs for use with theaters that were not ready for discrete sound.

Oh that's cool! I wonder how that would sound compared to the laserdisc PCM.

(2020-09-25, 07:50 PM)borisanddoris Wrote: -LaserDisc LPCM bit perfect 44.1khz 16-bit (US and Japanese both?)

I could offer the Japanese PILF-1926 as for the PCM ...

(2020-09-25, 07:50 PM)borisanddoris Wrote: -LaserDisc DTS (preferably raw capture)

as well as the famous US DTS no. 43115.

Would have to capture both first though which calls for a leisure weekend.

(2020-09-25, 10:03 PM)borisanddoris Wrote: Is the suggestion that I've not contributed anything, because if so, that simply isn't true. 

Oh yes, I can definitely vouch for that. Even my file system still gives due credit for their pioneers of converting the track long before any foobar plugin spitting it out "of the box" now:

   

I had once read a thread and my apologies as I cannot find it now after reading it about a year ago where someone had compared the dynamic range and LFE and other of the various JP mixes. These comparisons included the original DTS laserdiscs and early Dolby Digital & DTS DVDs. Ignoring alterations to the mix, where the original DTS CD-ROM disc mix would be the unchallenged winner when it comes to being as original as it gets. And ignoring someone doing a strict channel count where the DTS-X mix would easily win. For sheer dynamic range they found the 3-D Bluray's 7.1 DTS mix to be the best of the bunch. And for the lowest not loudest measured LFE they felt the first 7.1 bluray mix may have had a slight advantage over the 3-D bluray mix, but also admitted that may be perceptual due some LFE range dynamic audio compression when compared to the later 3-D bluray mix.

Again am sorry I can't find the link on this, but had found the analysis very interesting and wish I had the time to do dynamic range values and LFE measurements myself.

(2020-11-28, 01:26 AM)Wisp of Smoke Wrote: I had once read a thread and my apologies as I cannot find it now after reading it about a year ago where someone had compared the dynamic range and LFE and other of the various JP mixes.

I also thought that I've seen some review(s) with waterfall diagrams and bass response comparisons. While this at lddb.com goes in that direction, unfortunately the usual issue of external image links occurs meanwhile. Here I had listed several sources when I mentioned the slight imperfections of even the original mix.

These here also compare different releases:

http://www.baudline.com/erik/ht/reviews/..._park.html

http://archive.thedigitalbits.com/review...cpark.html

I notice that the 3DBD also has a separate DTS 5.1 track. Since the 7.1 DTS-HD track already has an embedded 5.1 DTS core for compatibility, I'll assume this isn't just a downmix of the 7.1. So does anyone know what this is? The DVD DTS mix perhaps?

(2020-09-25, 07:50 PM)borisanddoris Wrote: LaserDisc DTS (preferably raw capture)

Since there is hardly any better way to spend an evening, I hooked up the stuff which normally rather collects dust again and just finished recording the DTS version so far.

As raw as sushi and for the sake of completeness or in case of any sync requirements, the video and its analog FM audio as well:

   
   

(2020-12-01, 02:20 AM)little-endian Wrote:

(2020-09-25, 07:50 PM)borisanddoris Wrote: LaserDisc DTS (preferably raw capture)

Since there is hardly any better way to spend an evening, I hooked up the stuff which normally rather collects dust again and just finished recording the DTS version so far.

As raw as sushi and for the sake of completeness or in case of any sync requirements, the video and its analog FM audio as well:

Nice. Have you got bit perfect capture working in Audacity?! I never managed to, didn't matter what type of driver mode etc.

Yes, was struggling with Audacity quite a bit myself at first but the key is to select "24-bit" as default sample format under "Quality", setting Dither to "none" and just saving is as 16-bit PCM, truncating the least significant bits which are zero anyways. Otherwise I suppose, Audacity always applies some sort of dithering, corrupting any AC3 or DTS frames which might be embedded.