[linux-dvb] Antwort: Re: Antwort: Re: Best sound card with S/PDIF output for VDR and AC3/DolbyDigital sound?

[Stefan.Hagendorn@lindy.cc]

Hi Carsten ...

Yes the CMedia 8738 is the Chipset and the Winfast ist the Card. There is 
another Card on the Market which you can get from Pearl: Zoltrix xxxx 
don't know the exact Name ...

And yes you can run vdr all the time with the "-a ac3dec -C" parameter ... 
thanx to Robert Schneider .. he patched ac3dec this way that it only mutes 
the inputs only if ac3 data is sent (and not only when the pipe is opened)

My next Mainboard will be with onboard cmedia 8738 Chipset ... I really 
like the Card .... And thanks to Takashi Iwai@SuSE .. he is the driver 
developer for ALSA .. we stuck together for nearly half an year to include 
and fix the AC3 replay ....

Stefan




Carsten Koch <Carsten.Koch@icem.de>
Gesendet von: cko@icem.de
30.07.2001 23:44

 
        An:     linux-dvb <linux-dvb@linuxtv.org>
        Kopie: 
        Thema:  [linux-dvb] Re: Antwort: Re: Best sound card with S/PDIF output for VDR 
and AC3/DolbyDigital sound?


Stefan.Hagendorn@lindy.cc wrote:
> 
> I agree ... :-)
> 
> Robert: The cabel is included .. even it is a "low" quality optical 
cabel.

I personally believe that quality differences in optical
cables are a myth created by the vendors of the more
expensive cables. I bought a DM 6 optical cable for my
DVD player from Reichelt. I have no problems at all with
it, the sound is excellent and there are no dropouts.
I think it should not be too hard to transmit the bits
without errors. As long as that is the case, what difference 
can a higher quality cable make (except for maybe looking
better)?


> Carsten: The advantages of a C-Media 8738 Card are the optical and kabel
> digital input and output and a very good driver and tool support by the
> ALSA Project ... 

Is C-Media 8738 the chip name and Leadtek Winfast 4XSound
one card using the chip or is C-Media 8738 another similar
card altogether?



> Yiu can route the digital output of the dvb-s card into
> the digital input of the soundcard and connect the output of the card to
> your receiver .. this way you can hear the sound of the dvb-s card and 
can
> mix other data into it (like mp3). If you play raw-data (like ac3) the
> driver mutes the input and give you only the raw data at the output ..

Great idea!
That means I do not have to switch receiver inputs when
I play back an AC3 recording.

Can I keep vdr running with the -a "ac3play" parameter all 
the time?


> I have that working error free with a Leadtek Winfast Soundcard which is
> about DM 65,-- at http://www.atelco.de.

Thanks!
I'll go to Hamburg on Wednesday and get one.


> There are some things that need to be considered when switching that all
> on, I will do a FAQ in the near future and will ask Stephan to put it on
> his FAQ site.

Wonderful!
I'd appreciate this very much.

Thanks,

Carsten.


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