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Groups > comp.os.linux.hardware > #3379

Re: Low audio in recorded videos with desktop screen recorders.

From ant@zimage.comANT (Ant)
Subject Re: Low audio in recorded videos with desktop screen recorders.
Newsgroups comp.os.linux.hardware
References <p4CdnS62t96zcPTBnZ2dnUU7-I3NnZ2d@earthlink.com> <q4cv9m$35f$1@dont-email.me> <u-mdnahXv5ZohPfBnZ2dnUU7-SvNnZ2d@earthlink.com>
Message-ID <cI-dnTYjKZAPvffBnZ2dnUU7-cmdnZ2d@earthlink.com> (permalink)
Date 2019-02-17 21:03 -0600

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Ant <ant@zimage.comant> wrote:
> J G Miller <miller@yoyo.org> wrote:
> > On Sun, 17 Feb 2019 17:24:30 -0600, Ant wrote:

> > On Sunday, February 17th, 2019, at 17:24:30h -0600, Ant explained:

> > > I tried changing so many mixer volumes in ALSA, Pulse Audio, etc. in KDE 
> > > v4. It's confusing! My recorded videos' audios are always low.

> > You should only change one thing at a time.

> > And in order to track down the problem, the following points must be
> > addressed:

> > 1) Which application are you using to playback videos?  Some applications
> >    have their own volume control which can sometimes (eg mplayer) be difficult
> >    to find how to adjust.

> Many players like VLC, MPC-HC, etc. on multiple computers when I try to play the 
> recordings back.


> > 2) Are you running pulseaudio?  If so, when you fire up pavucontrol and
> >    go to the "Playback" tab (the first tab in fact), do you see in addition
> >    to System Sounds, your application name and a volume control slider?

> > 3) If you fire up alsamixer, does it show pulseaudio as the first (default)
> >    device with volume control?   The hitting F6, can you select the sound card
> >    device for your Intel onboard output.  Warning, on changing the alsamixer
> >    volume control for the real sound card hardware device, some older pulseaudio
> >    setups had a habit of resetting the level by themselves, so attempting to
> >    change it manually actually served no purpose.

> > Old versions of pulseaudio at times had major problems messing with
> > sound levels and upgrading to a recent version (8.0 at least) would be
> > a sensible course of action.

> Hmm, maybe that's why:
> $ dpkg -l |grep pulseaudio
> ii  gstreamer0.10-pulseaudio:amd64        0.10.31-3+nmu4+deb8u2                       amd64        GStreamer plugin for PulseAudio
> ii  gstreamer1.0-pulseaudio:amd64         1.4.4-2+deb8u3                              amd64        GStreamer plugin for PulseAudio
> ii  pulseaudio                            5.0-13                                      amd64        PulseAudio sound server
> ii  pulseaudio-esound-compat              5.0-13                                      amd64        PulseAudio ESD compatibility layer
> ii  pulseaudio-module-x11                 5.0-13                                      amd64        X11 module for PulseAudio sound server
> ii  pulseaudio-utils                      5.0-13                                      amd64        Command line tools for the PulseAudio sound server


> > The other issue is, are you actually recording the videos with a sensible
> > audio level for playback?

> Yes. When I just do my normal playing, it is fine. It's just my recordings' audio 
> volume isn't.

> Now, the bad news. I lost the audio completely in my recordings. Argh. I need to 
> figure how to get it back even if it is low.

I forgot to share my http://screenshot.cz/F5/F55QQ/audiomixers.gif 
screen capture if it helps.
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Thread

Low audio in recorded videos with desktop screen recorders. ant@zimage.comANT (Ant) - 2019-02-17 17:24 -0600
  Re: Low audio in recorded videos with desktop screen recorders. J G Miller <miller@yoyo.org> - 2019-02-18 00:46 +0000
    Re: Low audio in recorded videos with desktop screen recorders. ant@zimage.comANT (Ant) - 2019-02-17 20:35 -0600
      Re: Low audio in recorded videos with desktop screen recorders. ant@zimage.comANT (Ant) - 2019-02-17 21:03 -0600

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