[mythtv-users] Asus Pundit Audio Problems
hpoley at dds.nl
Sat Apr 10 18:54:51 EDT 2004
Op zaterdag 10 april 2004 22:15, schreef Dave Stocker:
> Been searching through the archives and seen mention of this same
> hardware but nothing has seemed to make a difference yet. I am using an
> Asus Pundit with an Asus TV FM card and have a couple problems with the
> onboard audio (SIS SI7012, chip reports as Realtek ALC650 rev 2).
> The audio out from the TV card is hooked into the motherboard's CD-in
> jack. I have muted the CD-IN under ALSA and set it to be CAPTUR. When
> watching live TV or a recording from live TV the audio is filled with
> static/interference. I can faintly hear the actual audio from the
> channel if I turn the volume way up on the receiver.Using xawtv and
> aplay /dev/dsp seems to work fine. Another topic said this problem can
> be caused if the soundcard is not full duplex. Searching for specs on
> this card, some say it is and some say it isn't. Does anyone know for
Well, people have used the audio in (loopback cable outside the case?) to
record sound with Pundit. I hear some complain about the quality (in the
sense that a dedicated soundcard will be a bit better), but not that you
can't hear anything. The onboard sound is full duplex.
I myself use the 'digital loopback' of my saa7134 based TV card, so I have no
idea about the recording quality of my Pundit. YMMV...
> The second problem is that I can't seem to get the card to output in
> 5.1. I have the Optical SPDIF output hooked into a receiver and the
> receiver only seems to detect 2 channels no matter what options I set in
> myth or for the dvd player (tried both xine and mplayer). Could be some
> ALSA configuration options I am missing. I have never played with 5.1
> through a computer before.
MythTV per default uses OSS output (don't know about xine/mplayer). The OSS
emulation layer of ALSA then doesn't output the audio to the SPDIF output
(from what I've heard... I don't have an SPDIF receiver so can't try).
Try specifying that you want them to use ALSA output.
Henk Poley <><
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