[mythtv-users] MythTV Hauppauge PVR-150 RecordingsfromComposite are destorted
lorenzo.mueller at mail2web.com
Tue Nov 6 21:16:20 UTC 2007
Thx for your reply, but I have this problem also when I use the "Live TV" - Profile.
When I watch Live-TV (from the composite input) and record the show by pressing "r" the sound is OK. It is only in combination with the scheduled record.
It is also not a problem with firmware/driver of the card, as when I do a
cat /dev/video0 > temp.mpg the sound is OK (I switched to the composite-input before).
It must have something to do with mythtv or the settings used at mythtv.
From: mythtv-users-bounces at mythtv.org on behalf of Normand Dugas
Sent: Tue 11/6/2007 3:42 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] MythTV Hauppauge PVR-150 RecordingsfromComposite are destorted
I'd look at your recording profiles to make sure the audio format is ok. I'm trying to recall but I may have seen this on a PVR-350 about 2 years ago and it was my default recording profile that had some strange audio setting. I'm not at home right now so I can't really tell exactly where to look.
----- Original Message ----
From: Lorenzo Mueller <lorenzo.mueller at mail2web.com>
To: Discussion about mythtv <mythtv-users at mythtv.org>
Sent: Tuesday, November 6, 2007 12:26:27 PM
Subject: Re: [mythtv-users] MythTV Hauppauge PVR-150 Recordings fromComposite are destorted
Nobody who can help me ?
I do not want to install a windows media-center instead of mythtv, but when nobody can help me - I need to record upcoming shows....
Hope someone can help me...
From: mythtv-users-bounces at mythtv.org on behalf of Lorenzo Mueller
Sent: Sun 11/4/2007 12:48 PM
To: Discussion about mythtv
Subject: AW: [mythtv-users] MythTV Hauppauge PVR-150 Recordings fromComposite are destorted
Thx for your input, but it still does not work.
As I have a new version of ivtv, the ivtvctl-command with your parameters does not work.
I used instead:
v4l2-ctl -a 0 and
v4l2-ctl -a 1 and
v4l2-ctl -a 2
With input 0 i got the sound of the tuner.
With input 1 i got the distorted sound of the composite-input
With input 2 i heard nothing.
I do not know if it is "distorted". It sounds like when I would record this with 11 kHz or so...
when I did:
cat /dev/video0 > test.mpg
The sound of the composite-input is OK. So I assume that it is something mythtv-related (Maybe a setting or so...)
Hope go hear from someone a new "hint" or workaround or so...
Thx in advance
Von: mythtv-users-bounces at mythtv.org im Auftrag von Cool Frood
Gesendet: Sa 03.11.2007 14:39
An: Discussion about mythtv
Betreff: Re: [mythtv-users] MythTV Hauppauge PVR-150 Recordings fromComposite are destorted
On 11/2/07, Lorenzo Mueller <lorenzo.mueller at mail2web.com> wrote:
> Hi all,
> I have a Hauppauge PVR-150. When I record from the build-in tuner,
> everything works fine.
> I have problems when I want to record shows from the composite-input. The
> video is fine, but the sound is distorted and sounds really strange.
> It is very serious that when I watch LIVE-TV from the Composite, the sound
> is OK. Also when I record from LIVE-TV (Press "r") the sound is OK. It is
> only when I make a scheduled record.
> Maybe someone could help me, because I cannot explain why the sound is only
> destorted from the composite-input at scheduled records.
> Thx in advance
> mythtv-users mailing list
> mythtv-users at mythtv.org
I had this problem too back when I was using the composite input from
my cable box. Now I don't have a cable box anymore and I'm using the
tuner on the PVR-150 so I don't have this issue any more. I came
across this hack when I was trying to deal with the problem:
# Some variables used to remember if the device is in use or not
# Loop forever
# Is the video device in use ?
fuser /dev/video0 2>/dev/null >/dev/null
if [ $? -eq 0 ]
# Something is using video device and this is the first time
we notice this
if [ "$record_video0" = "NO" ]
echo " recording on video0"
/usr/local/bin/ivtvctl -d /dev/video0 -q 0
# Not recording
if [ "$record_video0" = "YES" ]
echo " not recording anymore on video0"
I put this in a script called sound_fixer and started this in my
.xinitrc (or .xserverrc, I forget). You might have to play with the
"-q" value in the ivtvctl command to figure out which one works for
Hope this helps,
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