[mythtv-users] PVR-150(non-mce) Sound Quality

[Chris Weisiger]

Robert Anderson wrote:

>
>
> On 5/30/06, *Brian Wood* <beww at beww.org <mailto:beww at beww.org>> wrote:
>
>
>     On May 30, 2006, at 8:05 AM, cweisiger at i-55.com
>     <mailto:cweisiger at i-55.com> wrote:
>
>     > I have a pvr-150(non-mce) and a pvr-350 in my system.
>     >
>     > The sound quality is wonderful on my pvr-350, of which I
>     > have the coax cable hooked directly to it.
>     >
>     > The pvr-150(non-mce) has my cable box hooked to it using
>     > the composite(yellow, red, white). The picture quality is
>     > great but the sound is scratchy, with a slight hissing sound.
>     > Could this be that the sound is going from the red, white jacks
>     > to the single sound input of the pvr-150.
>
>     What is the sound like coming directly from the cable box? If that's
>     bad the card will not fix it. The "single sound input" of the PVR-150
>     is just the two channels in one connector, the connector type will
>     not directly cause the sound to be poor.
>
>     Many cable boxes have a sound level control, usually set with the
>     remote. Be sure that you have set that to a reasonable setting,
>     probably near the middle of the range or a bit higher.
>
>     I have a satellite receiver going directly into a PVR-150 and it
>     sounds as good as the audio output of the receiver is to start with.
>
>     As was mentioned, be sure you are using decent cables.
>
>     >
>     > Would the sound quality be better with a pvr-150 MCE version?
>
>     No. Although the MCE uses two RCA connectors instead of the one 1/8"
>     jack of the non-MCE version, audio quality should be the same as far
>     as a human ear can determine.
>
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>
>
> This sounds like it might be the "tinny audio" issue discussed on the 
> ivtv-user list. Search the archives of that list for details. As far 
> as I know there is no fix yet. What I found was that setting the audio 
> input on the command line with ivtvctl fixes the issue, temporarily. 
> Something like:
>  
> ivtvctl -d /dev/video1 -q 1
>  
> Check the manual for ivtvctl and make sure the parameters are correct. 
> I have a script that runs every minute via cron and loops for 55 
> seconds running this command every 5 seconds. Kinda lame but it works 
> for me.
>
> -- 
> Rob Anderson
> riznob at gmail.com <mailto:riznob at gmail.com>
>
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>  
>
The tuner card (pvr-150) that is hooked up to my cable box.
pvr-150 = /dev/video1


If I run from the command line:

mplayer /dev/video1

the video and audio works like it is suppose to. it works wonderful.