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#73331 - 12/17/07 02:08 PM Re: DVD movies, esp. DD sound lossy???
RedSIinPA Offline
Gunslinger

Registered: 12/28/06
Posts: 278
Loc: Outside Phila.
No, thanks, I was just curious. One 1070 is good for me. Good luck with the new unit.
_________________________
Model 1070
Toshiba HD-A35 & Pioneer BDP-51
Tivo Series 3
Elite 50" / Aquos 32"
Squeezebox Radio

Stereo Setup:
NAD C326BEE (50Wx2)
Elite DV-47Ai Universal SACD/DVD-A
Citypulse DA7.2x II + TXCO DAC
B&W 685s
JL Fathom F112
Denon AH-D2000 Headphones


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#73332 - 12/18/07 09:41 PM Re: DVD movies, esp. DD sound lossy???
squebel Offline
Deputy Gunslinger

Registered: 11/12/07
Posts: 11
I guess that maybe I can ask another question that is sort of along these lines...

Does anyone else experience a much quieter volume level when decoding a digital signal, say from a movie or digital cable box, compared to the same volume setting when listening to a source across an analog connection? Is it the amp, the source, cabling?

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#73333 - 12/18/07 09:48 PM Re: DVD movies, esp. DD sound lossy???
gonk Offline
Desperado

Registered: 03/21/01
Posts: 14054
Loc: Memphis, TN USA
There may be a couple things happening there. First, Dolby Digital and DTS tracks included on DVD's are intentionally mixed much lower than other sources to preserve headroom and avoid clipping during sudden loud passages. As a result, DVD's will typically be as much as 10dB quieter than other sources.

If you switch between digital and analog output from a given source and experience noticeably different volume levels, I'd suspect the source primarily - especially for multichannel digital sources that must be decoded and downmixed before being output as analog stereo. I haven't noticed it myself, but I have very rarely switched between digital and analog output in this manner.
_________________________
gonk
HT Basics | HDMI FAQ | Pics | Remote Files | Art Show
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#73334 - 12/18/07 10:20 PM Re: DVD movies, esp. DD sound lossy???
squebel Offline
Deputy Gunslinger

Registered: 11/12/07
Posts: 11
It could very well be the source. It's an older Onkyo S-555... nothing fancy at all. I will try switching between digital and analog just to see what happens. I think I will also test whether or not decoding the Dolby Digital signal at the source helps.

The 10db's less in volume is about right from my experience so maybe I'm seeing "normal" results.

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