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Old 08-24-06, 07:58 AM   #17 (Link)
 
bobgpsr
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Re: HD DVD 2.0 firmware (leaked out); enables TrueHD 5.1


Quote:
Sonnie wrote: View Post
Sounds like it went smooth.

Is the 5.1 TrueHD only passed via HDMI?
The decoded 5.1 TrueHD audio goes out of the player the same way all decoded audio (i.e. DD+) has always done. It works with linear PCM via HDMI, with the 5.1 analog outputs, and even with the re-encode to 1.5Mbps DTS sent via S/PDIF.

Using the HDMI or analog outputs is better in that the "re-encode to DTS" is a lossy process and limits the ultimate sound quality.

The linear PCM via HDMI (if your AVR/Pre-Pro supports it) has the advantage that you can use the DSP functions in your AVR/Pre-Pro, for instance apply DD PLIIx to 5.1 audio to drive the rear surrounds in a 7.1 system. A very few high end systems have the option of digitizing the 5.1 analog inputs and doing the same (the Sherwood preamp is one IIRC).

Bob


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