<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body 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
href="http://unix.stackexchange.com/questions/138810/low-pass-filter-on-lfe-using-pulseaudio">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>
<br>
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>
<br>
You can see at the end of this message the content of my default.pa
(placed in ~/.pulse).<br>
<br>
Any help would be appreciated.<br>
<br>
Yours,<br>
Zsolt<br>
<br>
<blockquote><tt>#!/usr/bin/pulseaudio -nF</tt><tt><br>
</tt><tt>#</tt><tt><br>
</tt><tt># This file is part of PulseAudio.</tt><tt><br>
</tt><tt>#</tt><tt><br>
</tt><tt># PulseAudio is free software; you can redistribute it
and/or modify it</tt><tt><br>
</tt><tt># under the terms of the GNU Lesser General Public
License as published by</tt><tt><br>
</tt><tt># the Free Software Foundation; either version 2 of the
License, or</tt><tt><br>
</tt><tt># (at your option) any later version.</tt><tt><br>
</tt><tt>#</tt><tt><br>
</tt><tt># PulseAudio is distributed in the hope that it will be
useful, but</tt><tt><br>
</tt><tt># WITHOUT ANY WARRANTY; without even the implied warranty
of</tt><tt><br>
</tt><tt># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU</tt><tt><br>
</tt><tt># General Public License for more details.</tt><tt><br>
</tt><tt>#</tt><tt><br>
</tt><tt># You should have received a copy of the GNU Lesser
General Public License</tt><tt><br>
</tt><tt># along with PulseAudio; if not, write to the Free
Software Foundation,</tt><tt><br>
</tt><tt># Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.</tt><tt><br>
</tt><tt><br>
</tt><tt># This startup script is used only if PulseAudio is
started per-user</tt><tt><br>
</tt><tt># (i.e. not in system mode)</tt><tt><br>
</tt><tt><br>
</tt><tt>.nofail</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load something into the sample cache</tt><tt><br>
</tt><tt>#load-sample-lazy x11-bell
/usr/share/sounds/gtk-events/activate.wav</tt><tt><br>
</tt><tt>#load-sample-lazy pulse-hotplug
/usr/share/sounds/startup3.wav</tt><tt><br>
</tt><tt>#load-sample-lazy pulse-coldplug
/usr/share/sounds/startup3.wav</tt><tt><br>
</tt><tt>#load-sample-lazy pulse-access
/usr/share/sounds/generic.wav</tt><tt><br>
</tt><tt><br>
</tt><tt>.fail</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically restore the volume of streams and
devices</tt><tt><br>
</tt><tt>load-module module-device-restore</tt><tt><br>
</tt><tt>load-module module-stream-restore restore_device=false</tt><tt><br>
</tt><tt>load-module module-card-restore</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically augment property information from
.desktop files</tt><tt><br>
</tt><tt>### stored in /usr/share/application</tt><tt><br>
</tt><tt>load-module module-augment-properties</tt><tt><br>
</tt><tt><br>
</tt><tt>### Should be after module-*-restore but before
module-*-detect</tt><tt><br>
</tt><tt>load-module module-switch-on-port-available</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load audio drivers statically</tt><tt><br>
</tt><tt>### (it's probably better to not load these drivers
manually, but instead</tt><tt><br>
</tt><tt>### use module-udev-detect -- see below -- for doing this
automatically)</tt><tt><br>
</tt><tt>#load-module module-alsa-sink</tt><tt><br>
</tt><tt>#load-module module-alsa-source device=hw:1,0</tt><tt><br>
</tt><tt>#load-module module-oss device="/dev/dsp"
sink_name=output source_name=input</tt><tt><br>
</tt><tt>#load-module module-oss-mmap device="/dev/dsp"
sink_name=output source_name=input</tt><tt><br>
</tt><tt>#load-module module-null-sink</tt><tt><br>
</tt><tt>#load-module module-pipe-sink</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically load driver modules depending on the
hardware available</tt><tt><br>
</tt><tt>.ifexists module-udev-detect.so</tt><tt><br>
</tt><tt>load-module module-udev-detect tsched=0</tt><tt><br>
</tt><tt>.else</tt><tt><br>
</tt><tt>### Use the static hardware detection module (for systems
that lack udev support)</tt><tt><br>
</tt><tt>load-module module-detect tsched=0</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically connect sink and source if JACK server
is present</tt><tt><br>
</tt><tt>.ifexists module-jackdbus-detect.so</tt><tt><br>
</tt><tt>.nofail</tt><tt><br>
</tt><tt>load-module module-jackdbus-detect channels=2</tt><tt><br>
</tt><tt>.fail</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically load driver modules for Bluetooth
hardware</tt><tt><br>
</tt><tt>.ifexists module-bluetooth-policy.so</tt><tt><br>
</tt><tt>load-module module-bluetooth-policy</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>.ifexists module-bluetooth-discover.so</tt><tt><br>
</tt><tt>load-module module-bluetooth-discover</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load several protocols</tt><tt><br>
</tt><tt>.ifexists module-esound-protocol-unix.so</tt><tt><br>
</tt><tt>load-module module-esound-protocol-unix</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt>load-module module-native-protocol-unix</tt><tt><br>
</tt><tt><br>
</tt><tt>### Network access (may be configured with paprefs, so
leave this commented</tt><tt><br>
</tt><tt>### here if you plan to use paprefs)</tt><tt><br>
</tt><tt>#load-module module-esound-protocol-tcp</tt><tt><br>
</tt><tt>#load-module module-native-protocol-tcp</tt><tt><br>
</tt><tt>#load-module module-zeroconf-publish</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load the RTP receiver module (also configured via
paprefs, see above)</tt><tt><br>
</tt><tt>#load-module module-rtp-recv</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load the RTP sender module (also configured via
paprefs, see above)</tt><tt><br>
</tt><tt>#load-module module-null-sink sink_name=rtp format=s16be
channels=2 rate=44100 sink_properties="device.description='RTP
Multicast Sink'"</tt><tt><br>
</tt><tt>#load-module module-rtp-send source=rtp.monitor</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load additional modules from GConf settings. This can
be configured with the paprefs tool.</tt><tt><br>
</tt><tt>### Please keep in mind that the modules configured by
paprefs might conflict with manually</tt><tt><br>
</tt><tt>### loaded modules.</tt><tt><br>
</tt><tt>.ifexists module-gconf.so</tt><tt><br>
</tt><tt>.nofail</tt><tt><br>
</tt><tt>load-module module-gconf</tt><tt><br>
</tt><tt>.fail</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically restore the default sink/source when
changed by the user</tt><tt><br>
</tt><tt>### during runtime</tt><tt><br>
</tt><tt>### NOTE: This should be loaded as early as possible so
that subsequent modules</tt><tt><br>
</tt><tt>### that look up the default sink/source get the right
value</tt><tt><br>
</tt><tt>load-module module-default-device-restore</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically move streams to the default sink if the
sink they are</tt><tt><br>
</tt><tt>### connected to dies, similar for sources</tt><tt><br>
</tt><tt>load-module module-rescue-streams</tt><tt><br>
</tt><tt><br>
</tt><tt>### Make sure we always have a sink around, even if it is
a null sink.</tt><tt><br>
</tt><tt>load-module module-always-sink</tt><tt><br>
</tt><tt><br>
</tt><tt>### Honour intended role device property</tt><tt><br>
</tt><tt>load-module module-intended-roles</tt><tt><br>
</tt><tt><br>
</tt><tt>### Automatically suspend sinks/sources that become idle
for too long</tt><tt><br>
</tt><tt>load-module module-suspend-on-idle</tt><tt><br>
</tt><tt><br>
</tt><tt>### If autoexit on idle is enabled we want to make sure
we only quit</tt><tt><br>
</tt><tt>### when no local session needs us anymore.</tt><tt><br>
</tt><tt>.ifexists module-console-kit.so</tt><tt><br>
</tt><tt>load-module module-console-kit</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt>.ifexists module-systemd-login.so</tt><tt><br>
</tt><tt>load-module module-systemd-login</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>### Enable positioned event sounds</tt><tt><br>
</tt><tt>load-module module-position-event-sounds</tt><tt><br>
</tt><tt><br>
</tt><tt>### Cork music/video streams when a phone stream is
active</tt><tt><br>
</tt><tt>load-module module-role-cork</tt><tt><br>
</tt><tt><br>
</tt><tt>### Modules to allow autoloading of filters (such as echo
cancellation)</tt><tt><br>
</tt><tt>### on demand. module-filter-heuristics tries to
determine what filters</tt><tt><br>
</tt><tt>### make sense, and module-filter-apply does the
heavy-lifting of</tt><tt><br>
</tt><tt>### loading modules and rerouting streams.</tt><tt><br>
</tt><tt>load-module module-filter-heuristics</tt><tt><br>
</tt><tt>load-module module-filter-apply</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load DBus protocol</tt><tt><br>
</tt><tt>.ifexists module-dbus-protocol.so</tt><tt><br>
</tt><tt>load-module module-dbus-protocol</tt><tt><br>
</tt><tt>.endif</tt><tt><br>
</tt><tt><br>
</tt><tt># X11 modules should not be started from default.pa so
that one daemon</tt><tt><br>
</tt><tt># can be shared by multiple sessions.</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load X11 bell module</tt><tt><br>
</tt><tt>#load-module module-x11-bell sample=bell-windowing-system</tt><tt><br>
</tt><tt><br>
</tt><tt>### Register ourselves in the X11 session manager</tt><tt><br>
</tt><tt>#load-module module-x11-xsmp</tt><tt><br>
</tt><tt><br>
</tt><tt>### Publish connection data in the X11 root window</tt><tt><br>
</tt><tt>#.ifexists module-x11-publish.so</tt><tt><br>
</tt><tt>#.nofail</tt><tt><br>
</tt><tt>#load-module module-x11-publish</tt><tt><br>
</tt><tt>#.fail</tt><tt><br>
</tt><tt>#.endif</tt><tt><br>
</tt><tt><br>
</tt><tt>### Make some devices default</tt><tt><br>
</tt><tt>set-default-sink output
alsa_output.pci-0000_05_02.0.analog-surround-51</tt><tt><br>
</tt><tt>#set-default-source input</tt><tt><br>
</tt><tt><br>
</tt><tt>### Load the integrated pulseaudio equalizer</tt><tt><br>
</tt><tt>load-module module-equalizer-sink sink_name=equalized</tt><tt><br>
</tt><br>
</blockquote>
</body>
</html>