[OT]: AC-3 Encoded vs PCM Encoded Stereo

rtbond wrote on 6/1/2005, 1:56 AM
Folks,

Compression issues aside, when creating a DVD video disc, is AC-3 or PCM encoded audio perferred? I believe in using Vegas/DVD-A my stereo recording have always been AC-3 encoded.

With a PCM encoded DVD video disc I've discovered that I get no audio from my home theater connected (via the TOSLINK-S/PDIF) DVD video player. It appears the player disables the stereo (RCA) ouput if a TOSLINK cable is connected to the video player. Disconnect the TOSLINK cable from the video player and audio is heard.

So, is this an unusual DVD video player behavior? Does this suggest AC-3 encoded stereo is a better way to go to minimize field DVD-video player/home theater playback issues?

Thanks

--Rob

p.s.. I did find by changing the DVD video player's Digital Audio menu setting from "ALL" to "PCM Only" then I can hear the PCM encoded stereo DVD audio track via the TOSLINK fed signal, unfortunately when I insert a Dobly Digital encoded commercial movie in the player my home theater receiver no longer indicates it is receivering Dobly Digita audio, but rather only PCM audio.

Rob Bond

My System Info:

  • Vegas Pro 22 Build 194
  • OS: Windows 11.0 Home (64-bit), Version: 10.0.26100 Build 26100
  • Processor: i9-10940X CPU @ 3.30GHz (14 core)
  • Physical memory: 64GB (Corsair Vengeance LPX 64GB (2 x 32GB) DDR4 DRAM 3200MHz C16 memory kit)
  • Motherboard Model: MSI x299 Creator (MS-7B96)
  • GPU: EVGA GeForce RTX 2070 SUPER XC ULTRA (Studio Driver Version =  536.40)
  • Storage: Dual Samsung 970 EVO 1TB SSD (boot and Render); WDC WD4004FZWX, 7200 RPM (media)
  • Primary Display: Dell UltraSharp 27, U2723QE, 4K monitor with 98% DCI-P3 and DisplayHDR 400 with Dell Display Manager
  • Secondary Display: LG 32UK550-B, entry-level 4k/HDR-10 level monitor, @95% DCI-P3 coverage