[vdr] Re: AC3 and Denon AVR

["Ray Glendenning" <ray.glendenning@hackery.demon.co.uk>]

Well, I still can't believe that sony would skimp on the circuits neither,
but then again.... :->

Anyone got this working? (In my case STR-BD940)

Ray

----- Original Message -----
From: "Reinhard Walter Buchner" <rw.buchner@freenet.de>
To: <vdr@linuxtv.org>
Sent: Tuesday, February 25, 2003 5:55 PM
Subject: [vdr] Re: AC3 and Denon AVR


> Hi Ulrich, Andre,
>
> > > Erhm, not sure there. It could quite well be that your amp is
> > > running on the *edge* with PCM. Running the extra AC3 packets
> > > could just push it over the edge.
>
> > Either the input PLL can sync onto a 5V sp/dif or not.
>
> Well that is pretty much my point. The input was NOT designed
> for 5V. So feeding a 5V signal into an input designed for 0.5
> to 1V may very well still work (depending on how good the
> rejection is), but adding more complex information (AC3)
> may well make locking impossible. That like asking a 800x600
> 72 Hz monitor to sync to an 85 Hz signal. It may still work
> at 75Hz or even 78-80Hz, but at 85 it just won't display.
>
> I'm not even sure if it just the PLL. It may well be the D/A,
> too. That will depend on the true input circuitry of the amp.
>
> If the signal coming from the DVB is a little bit noisy, you
> may never reach the intended 0 Volts long enough to be seen
> as such and a input which has it max sensitivity between 0-1V
> will be more susceptable to noise than an input made for
> 0-5V, simply because the "dead zone" is greater on the 0-5V
> input. Extending the complexity of the signal isn't going to
> be beneficial, either.
>
> Using  an optical connection will surely remove all stray
> ground interferences from the audio signal.
>
> I didn't say it *IS* this way, but surely it is possible. I will
> not risk the life of my Denon or my loudspeakers by testing
> it with 5V. This is also the reason why my extension board
> has a buffer driven ferrit transformer to make the signal as
> HiFi conform as possible.
>
> Testing it with a resistor divider sure won't hurt. Its up to
> Andre to try it (or go for an optical solution). I just can't
> believe Denon would skimp out on the input circuitry, just
> because its a cheaper (smaller) model. Of course the D/A,
> etc may well be different.
>
> Greetz,
> Reinhard
>
>
> ---
> Mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.443 / Virus Database: 248 - Release Date: 10.01.2003
>
>
>
>
> --
> Info:
> To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe vdr" as
subject.
>



-- 
Info:
To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe vdr" as subject.