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On 2014-07-08 12:40, Jason Newton wrote:<br>
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cite="mid:CAGou9MhQhabmS=tJ61=tjChhSmiqf1EFhwaJBkFeY4o=FZ9O8g@mail.gmail.com"
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<div class="gmail_quote">On Mon, Jul 7, 2014 at 8:47 AM,
Zsolt Szakács<span dir="ltr"></span> wrote:<br>
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<div bgcolor="#FFFFFF" text="#000000"> Hello,<br>
<br>
I'm using the equalizer sink for PulseAudio 4.0 under
SolydK so that my subwoofer emits sound only about 80
Hz and below in my 5.1 sound system. (I wanted to try
another solution to do this, as I wrote in my post on
Stackexchange <a moz-do-not-send="true"
href="http://unix.stackexchange.com/questions/138810/low-pass-filter-on-lfe-using-pulseaudio"
target="_blank">here</a>, but it wasn't successful.)
Also, I'm using gstreamer.<br>
<br>
One problem is that every time I reboot, the settings
in qpaeq don't seem to take effect. Even if I open
qpaeq and start moving the scales, the change is not
reflected in the sound at all. However, if I enter <i>pulseaudio
-k</i> and then <i>pulseaudio -D</i> in the
terminal, I can hear that equalization is applied.<br>
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<div>Hi,<br>
<br>
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<div>Re the equalizer, this sounds very odd, perhaps
somehow one of the modules is not loaded when your
desktop environment starts pulse? Could you try using
pacmd list-modules and look for module-dbus-protocol and
module-equalizer-sink on such conditions? Are you sure
applications are being routed through the equalizer? A
good way to check is pavucontrol.<br>
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Another problem is that when the equalized sink is the
default sink, sound stutters when watching a video on
YouTube with Firefox and Flash or playing an mp3 with
VLC. However, there is stuttering only at the
beginning or the end of playing (when I select stop)
or jumping to a particular position while playing a
video in SMplayer, Mplayer, VLC, or listening to music
in Clementine.<br>
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<div>These are buffering issues manifesting with flash and
others with events causing a rewind (start/stop/seek)
when multiple sources are active - my advice for now is
to not use flash and the equalizer together and instead
have flash content go directly to the device sink. The
rewind issues on multiple sources is another long
standing issue to fix but if you do not have multiple
sources active, it will not manifest. For what its
worth, they are problems I want to look into to
characterize better and fix but I am months out from
having the luxury of time to do it.<br>
<br>
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<div>Regards,<br>
</div>
<div>-Jason<br>
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Hi Jason,<br>
<br>
I've checked the loaded modules and both before and after restarting
PA both module-dbus-protocol and module-equalizer-sink are loaded.
However, I also noticed that a few modules are not loaded again
after restarting PA, namely <i>module-device-manager</i><i>,
module-x11-publish, </i><i>module-x11-cork-request</i>, and <i>module-x11-xsmp</i>.<br>
<br>
I've also checked pavucontrol (thanks for mentioning it), and it
looks like the equalized sink doesn't get any signal until I switch
the output in the playback tab (but then it reverts back to the
unequalized 5.1 sink after playing another audio or video file) or I
restart PA from terminal.<br>
<br>
Also, as for the issue with Flash, interestingly, if I switch to the
equalized sink inside pavucontrol, there is no stuttering apart from
for a short time after I switch, but, again, this is a temporary
solution.<br>
<br>
Regards,<br>
Zsolt<br>
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