[mythtv-users] Audio isn't working in MythTv, but it is in TvTime

Jason Barnett jbarnett74 at hotmail.com
Sat Jan 27 05:37:11 UTC 2007

I believe my tv card may not do audio encoding, but I do have a cable from 
my tv card to the line in of my audio card.  Again, I've tested my 
configuration using TvTime and that both video and sound work fine.  I'm 
using the saa7134 driver, with options set to card=65 and tuner=54

My sound card is an onboard Nvidia CK804 with the Realtek ALC850 rev 0 
chipset (according to the headings in ALSA Mixer).  It's integrated with the 
Abit KN8 Ultra motherboard I'm using.  I am using the line out to desktop 

When I run "dmesg | grep saa7134" I get:
"saa7134 IR (V-Stream Studio TV  as /class/input/input4"

I'm not sure what more to say, other than I'm new to Linux and I appreciate 
your patience.  : )

From: Rod Smith <mythtv at rodsbooks.com>
Reply-To: Discussion about mythtv <mythtv-users at mythtv.org>
To: Discussion about mythtv <mythtv-users at mythtv.org>
Subject: Re: [mythtv-users] Audio isn't working in MythTv,but it is in 
Date: Fri, 26 Jan 2007 23:56:38 -0500

On Friday 26 January 2007 22:31, Jason Barnett wrote:
 > Could someone explain to me how I might get audio to work in MythTv?  
 > got it working when I use TvTime.
 > I'm using a Kworld tv card, using the saa7134 driver, with Fedora Core 6.

First, most (all?) cards that don't do hardware encoding require you to feed
the audio output from the card to the audio input of your sound card. A 
Google suggests that your card probably doesn't do hardware encoding, but 
not 100% sure of that. Thus, the first thing to check is that your audio
input/output cabling is correct.

If so, then you'll need to start checking your mixer settings. This can be
tricky sometimes. One page that's likely to help a lot is:


If you've got digital audio out (for 5.1-channel sound through a receiver),
you might also want to read:


If these sources don't help, try posting back with more details. Most
importantly, report details of your physical connections (between the tuner
card and the sound card and from the sound card to your TV, receiver, or
speakers) and the type of sound card you're using and its Linux drivers.

Rod Smith
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