[mythtv-users] looking for A7N8X-E sound advice

[Jim Oltman]

I bought the plug on ebay.  Of course, I haven't used it yet.  Here is
my modprobe.conf for my A7N8X-E DLX.

alias eth0 sk98lin
alias eth1 forcedeth
alias snd-card-0 snd-intel8x0
options snd-card-0 index=0
install snd-intel8x0 /sbin/modprobe --ignore-install snd-intel8x0 &&
/usr/sbin/alsactl restore >/dev/null 2>&1 || :
remove snd-intel8x0 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ;
}; /sbin/modprobe -r --ignore-remove snd-intel8x0
alias usb-controller ehci-hcd
alias usb-controller1 ohci-hcd

Instead of a .asound, I made an asound.conf and placed it in the /etc
directory.  It works PERFECTLY for me.  You just have to make sure to
specify the correct settings in MythFrontend for MythTV and for
MythMusic.

# Override the default output used by ALSA.
# If you do not override the default, your default
# device is identical to the (unmixed) analog device
# shown below.  If you prefer mixed and/or digital
# output, uncomment the appropriate four lines below
# (only one slave.pcm line).
pcm.!default {
  type plug
## Uncomment the following to use mixed analog by default
#  slave.pcm "dmix-analog"
## Uncomment the following to use unmixed digital by default
  slave.pcm "digital-hw"
## Uncomment the following to use mixed digital by default
#  slave.pcm "dmix-digital"
}

# Alias for analog output on the nForce2 (hw:0,0)
# - This is identical to the device named "default"--which
# always exists and refers to hw:0,0 (unless overridden)
# - Therefore, we can specify "hw:0,0", "default", or "analog"
# to access analog output on the nForce2
pcm.analog {
 type plug
 slave.pcm "analog-hw"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.analog {
 type hw
 card 0
}

# Alias for (rate-converted) mixed analog output on the
# nForce2 (hw:0,0)
#  - This will accept audio input--regardless of rate--and
# convert to the rate required for the dmix plugin
# (in this case 48000Hz)
pcm.mixed-analog {
 type plug
 slave.pcm "dmix-analog"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-analog {
 type hw
 card 0
}

# Alias for (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
#  - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.digital {
 type plug
 slave.pcm "digital-hw"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.digital {
 type hw
 card 0
}

# Alias for mixed (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
#  - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.mixed-digital {
 type plug
 slave.pcm "dmix-digital"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-digital {
 type hw
 card 0
}

# The following devices are not useful by themselves.  They
# require specific rates, channels, and formats.  Therefore,
# you probably do not want to use them directly.  Instead use
# of of the devices defined above.

# Alias for analog output on the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.analog-hw {
 type hw
 card 0
 # The default value for device is 0, so no need to specify
}

# Control device (mixer, etc.) for the nForce2 card
ctl.analog-hw {
 type hw
 card 0
}

# Alias for digital (S/PDIF) output on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.digital-hw {
 type hw
 card 0
 device 2
}

# Control device (mixer, etc.) for the nForce2 card
ctl.digital-hw {
 type hw
 card 0
}

# Direct software mixing plugin for analog output on
# the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-analog {
 type dmix
 ipc_key 1234
 slave {
   pcm "analog-hw"
   period_time 0
   period_size 1024
   buffer_size 4096
   rate 48000
 }
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-analog {
 type hw
 card 0
}

# Direct software mixing plugin for digital (S/PDIF) output
# on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-digital {
 type dmix
 ipc_key 1235
 slave {
   pcm "digital-hw"
   period_time 0
   period_size 1024
   buffer_size 4096
   rate 48000
 }
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-digital {
 type hw
 card 0
}

In MythTVFrontend ---Setup for the audio device I put in ALSA:digital
(this is my default setting in the asound.conf above).  For the mixer
device, I put in:  default.  For MythMusic setup I did the same thing,
ALSA:digital.  I am not sitting in front of my machine right now or I
would have the exact menu structure down.  Good luck!

On Mon, 14 Mar 2005 13:05:56 -0800, Reza Naima <reza at reza.net> wrote:
> are you able to record and playback via the s/pdif connector?  I know
> that the record connector is a header on the motherboard itself,
> thinking of just making an adaptor myself as I've no idea where I can
> buy the special board that plugs into it.
> 
> Reza
> 
> On Fri, Jan 21, 2005 at 04:43:39AM -0800, Todd Tidwell sent me this...
> > Go here: http://www.mythtv.info/moin.cgi/DigitalSoundHowTo
> >
> > It has a great asoundrc file that has been running fantastically for me on
> > my A7n8x deluxe for nearly 9 months.
> >
> > -----Original Message-----
> > From: mythtv-users-bounces at mythtv.org
> > [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of John Freer
> > Sent: Wednesday, January 19, 2005 5:45 PM
> > To: mythtv-users at mythtv.org
> > Subject: [mythtv-users] looking for A7N8X-E sound advice
> >
> > Hey all:
> >
> > Wondering if someone could give me suggestions on how to best get the
> > A7N8X-E Deluxe's SPDIF port working.
> >
> > Fresh FC3 install
> >
> > Would appreciate a copy of someone's .asoundrc file and any special
> > modprobe.conf entries of note.
> >
> > I've been going over the alsa postings for the 810 module, but
> > haven't found a working combination yet.
> >
> > Thanks a lot.
> >
> > JF
> >
> >
> >
> 
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
> 
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
> 
>