[MPlayer-users] Re: recording from video tapes (a novice question)

Janusz S. Bień jsbien at mimuw.edu.pl
Sun Aug 10 22:32:11 CEST 2003

On Sat, 9 Aug 2003  GS HUNT <ghunt at cogeco.ca> wrote:

> I tried to play you AVI file.... with a 48000khz card and I got no sound

Thank you very much. At least one thing seems clear.

> The last few  Mplayer releases fixed any sound card issues I had.
> Even before the fix, I've always had sound.. It would just play at the wrong 
> speed.
> The fact that you are getting no sound consdering these things suggests a 
> recording problem rather than a playback.... 
> If I were to guess I would say that the sound feed is not hooked up correctly 
> to your computer... 

Please note I have no problem with sound when just watching TV with
mplayer, zapping or xawtv.

>or your mixer settings are too low or muted. 

I hear the sound while recoding. Is it the expected behaviour of mencoder?

The volume of the sound I hear while recording is sensitive to the
volume and line settings in xaumixer. However, the settings have no
effect on recording.

The strange thing is that the results of my experiments are not fully
consistent. Unfortunately, my experiments are rather chaotic as I
switch between xawtv, zapping and mplayer/mecoder. Perhaps the
settings in one program are inherited by others? There was a session
when I was able to record correctly on-air TV both with zapping and
mencoder. On next session I tried to record video tapes and the sound
was recorded but distorted when played back (unfortunately I have
erased the files). Now I don't have sound all the time when recording
with mencoder, zapping or xawtv. In the meantime I made no concious
changes to the configuration but perhaps (sorry, I don't remember) I
updated my unstable Debian.

I use an on-board sound card and my mainboard is ECS K7S5A. The
capture card is AverTV Studio 203.

Any new suggestions?

Best regards


> On Saturday 09 August 2003 03:59 am, Janusz S. Bień wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> >
> > On 08 Aug 2003  jsbien at mimuw.edu.pl (Janusz S. Bień) wrote:
> > > The problem described below occurs both in zapping and
> > > mplayer/mencoder, installed from packages on Debian unstable.
> >
> > [...]
> >
> > > I can also record the TV broadcast with good quality.
> >
> > When I tried to make more experiments, it appeared that the above
> > statement was too optimistic. Although I managed to do some recording
> > with mencoder and zapping, today I am unable to repeat the success :-)
> >
> > Actually I am not sure my problems concern recording or replaying. At
> >
> >         http://www.mimuw.edu.pl/~jsbien/poufne/tv.zip
> >
> > you can find an AVI file together with mencoder parameters used to
> > create it and the mencoder output.
> >
> > When I replay it, I have no sound. Can it be related to the fact that
> > mencoder says
> >
> >         AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 176400->176400 (1411.2
> > kbit)
> >
> > while my on-board card supports only 48000?
> >
> > However, I have the same problem with zapping despite the fact that I
> > changed the appropriate settings to 48000.
> >
> > Regards
> >
> > Janusz
> _______________________________________________
> RTFM!!!  http://www.MPlayerHQ.hu/DOCS
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dr hab. Janusz S. Bien, prof. UW
Prof. Janusz S. Bien, Warsaw Uniwersity
jsbien at mimuw.edu.pl, jsbien at uw.edu.pl

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