[vdr] Re: Audio & hardware question

[Andreas Mair <Andreas.Mair@linogate.com>]

Hi,

I've connected my DD receiver (Yamaha) to the J2 of my v1.3 card.
I notice different audio volums, too. Recordings are always softer than 
LiveTV, while DD recordings and DVD playback being even more softer.
This is very annoying, if you watch anything with DD sound and e.g. the DVD 
player crashes: it almost blows you off your couch.
I think there should be a more constant volume.
I'm using vdr1.0.4-aio1009.

Regards,
Andreas

On Thursday 14 November 2002 08:42, Reinhard Walter Buchner wrote:
> Hi all,
>
> I have a question to those of you using either the S/P-Dif
> coax or the TOSLink (i.e. digtal) output of the DVB.
>
> I am working on a few addons for VDR. My main problem at
> the moment ist the audio volume. I haven't gotten around to
> making a small PCB in order to use the digital sound & video
> connectors on the DVB, so I am using the normal analog
> 3.5mm output connector on the rear of the card.
>
> The sound volume is awfully low. I am running the DVB card
> on an 8 channel (@170W p. c.) Denon amp. I have to turn up the
> amp quite bit to get a suitable volume. If I use the same volume
> setting for my other HiFi components, it would blow my ears
> away ;o))
>
> Controlling the volume thru VDR I noticed that any values
> below ~~220-225 (range 0-255) pretty much equals absolute
> silence. In other words: the useable volume range is between
> 220-255 for me.
>
> I have noticed this "low output" effect on many PC cards that
> have anything to do with sound output (same goes for my Onkyo
> amp, so it's not a Denon specifical problem). I suppose card
> manufacturers don't spec their cards to the 0dB /  775mV standard
> of HiFi equipment. It wouldn't be a problem for me to change the
> feedback resistor of the LM 386 on the DVB, to increase the drive,
> but what I would like to know if the output via coax or optical digital
> output (which is what I will be using anyway) of the DVB is louder
> (properly spec'd via a voltage divider, of course) than the DVB's
> analog outputs, before I experiment any further. Your experiences
> with the analog output in terms of loudness would also interest me ,
> of course. In what "VDR volume range" can you hear the output of
> the DVB card (although I don't think my DVB card is defective).
> And no, I am not deaf ;o)), it really is the low output of the DVB.
>
> Greetz,
> Reinhard



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