F12: volume decreases during playing mp3 files with gnome-mplayer

[Joachim Backes]

Hi,

Having weird effect during playing mp3 files with gnome-mplayer in F12:

very often, the volume level decreases more and more (simetimes down to
0) during playback of mp3 files, without any manual change of the volume
knob.

Somebody can confirm this behaviour with
gnome-mplayer-0.9.8-1.fc12.i686 ?

Regards

Joachim Backes <[hidden email]>

http://www.rhrk.uni-kl.de/~backes




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[Michael Schwendt]

On Fri, 06 Nov 2009 14:15:24 +0100, Joachim wrote:

> Hi,
>
> Having weird effect during playing mp3 files with gnome-mplayer in F12:
>
> very often, the volume level decreases more and more (simetimes down to
> 0) during playback of mp3 files, without any manual change of the volume
> knob.
>
> Somebody can confirm this behaviour with
> gnome-mplayer-0.9.8-1.fc12.i686 ?

All I can confirm is that it affects lots of other audio/media players,
too. There are many tickets about that assigned to pulseaudio _and_ also
the individual players (such as totem, rhythmbox or audacious) or media
playing backends (such as GStreamer). Where the tickets are still open,
they are easy to find with the http://bugz.fedoraproject.org/SRC-RPM-NAME
web pages - replace SRC-RPM-NAME appropriately, e.g.:
http://bugz.fedoraproject.org/gstreamer-plugins-good

As I understand some of the comments related to this problem, it won't
be fixed in PulseAudio but must be fixed for any app that uses the
PulseAudio API to set the volume.

In Audacious I've fixed it by not resetting the default pulseaudio output
stream volume and being more conservative in storing/reusing volume level
changes, which are made with external volume preferences tools.

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[Kevin DeKorte]

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Hash: SHA1

On 11/06/09 06:31, Michael Schwendt wrote:

> On Fri, 06 Nov 2009 14:15:24 +0100, Joachim wrote:
>
>> Hi,
>>
>> Having weird effect during playing mp3 files with gnome-mplayer in F12:
>>
>> very often, the volume level decreases more and more (simetimes down to
>> 0) during playback of mp3 files, without any manual change of the volume
>> knob.
>>
>> Somebody can confirm this behaviour with
>> gnome-mplayer-0.9.8-1.fc12.i686 ?
>
> All I can confirm is that it affects lots of other audio/media players,
> too. There are many tickets about that assigned to pulseaudio _and_ also
> the individual players (such as totem, rhythmbox or audacious) or media
> playing backends (such as GStreamer). Where the tickets are still open,
> they are easy to find with the http://bugz.fedoraproject.org/SRC-RPM-NAME
> web pages - replace SRC-RPM-NAME appropriately, e.g.:
> http://bugz.fedoraproject.org/gstreamer-plugins-good
>
> As I understand some of the comments related to this problem, it won't
> be fixed in PulseAudio but must be fixed for any app that uses the
> PulseAudio API to set the volume.
>
> In Audacious I've fixed it by not resetting the default pulseaudio output
> stream volume and being more conservative in storing/reusing volume level
> changes, which are made with external volume preferences tools.
>

The problem is not pulseaudio it is a bug in the gnome-mplayer code. It
has been fixed in SVN. I also believe there is a patched binary for
fedora floating around...

See this bug.. http://bugzilla.rpmfusion.org/show_bug.cgi?id=853

Kevin




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[Joachim Backes]

On 11/06/2009 02:55 PM, Kevin DeKorte wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 11/06/09 06:31, Michael Schwendt wrote:
>> On Fri, 06 Nov 2009 14:15:24 +0100, Joachim wrote:
>>
>>> Hi,
>>>
>>> Having weird effect during playing mp3 files with gnome-mplayer in F12:
>>>
>>> very often, the volume level decreases more and more (simetimes down to
>>> 0) during playback of mp3 files, without any manual change of the volume
>>> knob.
>>>
>>> Somebody can confirm this behaviour with
>>> gnome-mplayer-0.9.8-1.fc12.i686 ?
>>
>> All I can confirm is that it affects lots of other audio/media players,
>> too. There are many tickets about that assigned to pulseaudio _and_ also
>> the individual players (such as totem, rhythmbox or audacious) or media
>> playing backends (such as GStreamer). Where the tickets are still open,
>> they are easy to find with the http://bugz.fedoraproject.org/SRC-RPM-NAME
>> web pages - replace SRC-RPM-NAME appropriately, e.g.:
>> http://bugz.fedoraproject.org/gstreamer-plugins-good
>>
>> As I understand some of the comments related to this problem, it won't
>> be fixed in PulseAudio but must be fixed for any app that uses the
>> PulseAudio API to set the volume.
>>
>> In Audacious I've fixed it by not resetting the default pulseaudio output
>> stream volume and being more conservative in storing/reusing volume level
>> changes, which are made with external volume preferences tools.
>>
>
> The problem is not pulseaudio it is a bug in the gnome-mplayer code. It
> has been fixed in SVN. I also believe there is a patched binary for
> fedora floating around...
>
> See this bug.. http://bugzilla.rpmfusion.org/show_bug.cgi?id=853
>
> Kevin

Hi Kevin,

after installing

gnome-mplayer-0.9.8-1.20091021svn1582.fc11.i586.rpm and
gnome-mplayer-common-0.9.8-1.20091021svn1582.fc11.i586.rpm

from http://belegdol.fedorapeople.org/gnome-mplayer/, all mp3 files are
played properly with constant volume level.

Thank you very much for your advice.

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Joachim Backes <[hidden email]>

http://www.rhrk.uni-kl.de/~backes




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[Bruno Wolff III]

On Fri, Nov 06, 2009 at 14:15:24 +0100,
  Joachim Backes <[hidden email]> wrote:
> Hi,
>
> Having weird effect during playing mp3 files with gnome-mplayer in F12:
>
> very often, the volume level decreases more and more (simetimes down
> to 0) during playback of mp3 files, without any manual change of the
> volume knob.

In xmms the work around was to have the system volume at max and adjust
the volume in xmms. (xmms doesn't have this issue any more though.)

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[Kevin DeKorte]

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On 11/06/09 13:17, Bruno Wolff III wrote:

> On Fri, Nov 06, 2009 at 14:15:24 +0100,
>   Joachim Backes <[hidden email]> wrote:
>> Hi,
>>
>> Having weird effect during playing mp3 files with gnome-mplayer in F12:
>>
>> very often, the volume level decreases more and more (simetimes down
>> to 0) during playback of mp3 files, without any manual change of the
>> volume knob.
>
> In xmms the work around was to have the system volume at max and adjust
> the volume in xmms. (xmms doesn't have this issue any more though.)
>

Yes there are several different kind of volume settings but they
basically boiled down to two.

1. volume in gnome-mplayer is the same as the system volume
        as seen with oss, alsa (without dmix), pulseaudio >= 0.9.15 with flat
volume enabled (default)

2. volume in gnome-mplayer is a percentage of the system volume
        alsa with dmix (I believe), pulseaudio < 0.9.15 with flat volume is
disabled (flat volume only exists on 0.9.15 and higher) and mplayer softvol

all of these combinations can make getting the volume "right" kinda of
annoying. Also the fact that a volume knob is being altered from several
locations (system volume, application volume, other mixer) can really
lead to confusion as to which volume source is currently the right one.

Kevin

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