[mythtv-users] Audio from SAA7134

[Andrew Osborn]

Guys,
That all worked very well. I have sound now. I am having 2 problems though.

First, I only get audio from the Left channel, that was reported a few
places but I don't know if a fix was ever given out.

Second, the audio quality isn't good at all. During dead air it has a
fairly loud hiss and during speaking/other sounds it is staticy.
Anything to easily fix this? It isn't really usable in this condition
because of it.

Thanks for everything!


On 11/24/06, Michael Lynch <lynchmv at gmail.com> wrote:
> On 11/24/06, Andrew Osborn <aosborn at gmail.com> wrote:
> > Hello All,
> >
> > Has anyone had problems getting an SAA7134 TV Tuner card working? Mine
> > is not being detected as an audio device, and I'm not sure what steps
> > I have to go through to get it in the audio device list. The card is a
> > Compro VideoMate TV Gold Plus which uses the SAA7134 driver (I use: #
> > modprobe saa7134 card=41 tuner=17).
> >
> >
>
> I have this exact card (I actually put up the original mythtv wiki
> page for it) and here is my configuration
> (http://www.mythtv.org/wiki/index.php/User:Lynchmv):
>
> #> lspci -v
> 02:09.0 Multimedia controller: Philips Semiconductors SAA7133 Video
> Broadcast Decoder (rev 10)
>        Subsystem: Compro Technology, Inc. Compro VideoMate TV Gold+
>        Flags: bus master, medium devsel, latency 64, IRQ 5
>        Memory at feafe800 (32-bit, non-prefetchable) [size=2K]
>        Capabilities: [40] Power Management version 2
>
> #> arecord -l
> **** List of CAPTURE Hardware Devices ****
> card 0: ICH5 [Intel ICH5], device 0: Intel ICH [Intel ICH5]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 0: ICH5 [Intel ICH5], device 1: Intel ICH - MIC ADC [Intel ICH5 - MIC ADC]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 0: ICH5 [Intel ICH5], device 2: Intel ICH - MIC2 ADC [Intel ICH5
> - MIC2 ADC]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 0: ICH5 [Intel ICH5], device 3: Intel ICH - ADC2 [Intel ICH5 - ADC2]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 1: SAA7134 [SAA7134], device 0: SAA7134 PCM [SAA7134 PCM]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>
> RELEVANT INFO FROM /etc/modprobe.conf
> ### Begin Capture Cards
> alias char-major-81 videodev
>
> # Compro VideoMate Gold+ as video0
> alias char-major-81-0 saa7134
> options saa7134 card=41 tuner=17
>
> ### Get onboard sound to dsp0
> alias snd-card-0 snd-intel8x0
> options snd-card-0 index=0
> options snd-intel8x0 index=0
> remove snd-intel8x0 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ;
> }; /sbin/modprobe -r .ignore-remove snd-intel8x0
>
> ### Get sound from Compro to dsp1
> alias snd-card-1 saa7134-alsa
> options snd-card-1 index=1
> options saa7134-alsa index=1
> remove saa7134-alsa { /usr/sbin/alsactl store 1 >/dev/null 2>&1 || : ;
> }; /sbin/modprobe -r .ignore-remove saa7134-alsa
>
> RELEVANT INFO FROM /etc/rc.d/rc.local
> ## V4L Cards
> /usr/local/bin/v4lctl -c /dev/video0 volume mute off
>
> RELEVANT MythTV info (from mysql tables)
> videodevice: /dev/v4l/video0
> audiodevice: /dev/dsp1
> vbidevice: /dev/v4l/vbi0
> cardtype: V4L
> defaultinput: Composite1 (this will be different if you're using the
> coax, I'm capturing from an STB using RCA and line in)
> audioratelimit: 32000
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>


-- 

Andy Osborn