PulseAudio-10.0
Introduction to PulseAudio
PulseAudio is a sound system for
POSIX OSes, meaning that it is a proxy for sound applications. It
allows you to do advanced operations on your sound data as it
passes between your application and your hardware. Things like
transferring the audio to a different machine, changing the sample
format or channel count and mixing several sounds into one are
easily achieved using a sound server.
This package is known to build and work properly using an LFS-8.0
platform.
Package Information
PulseAudio Dependencies
Required
JSON-C-0.12.1 and libsndfile-1.0.27
Recommended
alsa-lib-1.1.3, dbus-1.10.14,
GLib-2.50.3, libcap-2.25
with PAM, OpenSSL-1.0.2k, Speex-1.2rc2 and Xorg
Libraries
Optional
Avahi-0.6.32, BlueZ-5.43
(runtime), Check-0.11.0, ConsoleKit2-1.0.2 (runtime),
GConf-3.2.6, GTK+-3.22.8, libsamplerate-0.1.9, SBC-1.3 (Bluetooth support),
Valgrind-3.12.0, FFTW, JACK, libasyncns,
LIRC, ORC,
TDB,
WebRTC AudioProcessing and XEN
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/pulseaudio
Installation of PulseAudio
Install PulseAudio by running the
following commands:
./configure --prefix=/usr \
--sysconfdir=/etc \
--localstatedir=/var \
--disable-bluez4 \
--disable-rpath &&
make
To test the results, issue: make
check.
Now, as the root user:
make install
While still as the root user,
remove the D-Bus configuration
file for the system wide daemon to avoid creating unnecessary
system users and groups:
rm /etc/dbus-1/system.d/pulseaudio-system.conf
Command Explanations
--disable-bluez4: This
switch disables support for BlueZ
version 4 in favour of BlueZ
version 5 since the latter also installs compatibility library for
the earlier version.
--disable-rpath: This
switch prevents linker from adding a hardcoded runtime path to the
installed programs and libraries.
Configuring PulseAudio
Config
Files
There are system wide configuration files: /etc/pulse/daemon.conf, /etc/pulse/client.conf, /etc/pulse/default.pa, and user configuration
files with the same names in ~/.config/pulse. User configuration files take
precedence over system wide ones.
Configuration Information
The default configuration files allow setting up a working
installation. However, a reference to Console-Kit needs to be
removed if it is not installed. For example, issue the following
command as the root user:
sed -i '/load-module module-console-kit/s/^/#/' /etc/pulse/default.pa
You may also have to configure the audio system. You can start
pulseaudio in command line mode
using pulseaudio -C
and then list various information and change settings. See
man
pulse-cli-syntax.
Contents
Installed Programs:
esdcompat, pacat, pacmd, pactl, padsp,
pamon (symlink to pacat), paplay (symlink to pacat), parec
(symlink to pacat), parecord (symlink to pacat), pasuspender,
pax11publish, pulseaudio, and start-pulseaudio-x11
Installed Libraries:
libpulse-mainloop-glib.so,
libpulse-simple.so and libpulse.so
Installed Directories:
/etc/pulse, /usr/include/pulse,
/usr/lib/cmake/PulseAudio, /usr/lib/{pulseaudio,pulse-10.0},
/usr/libexec/pulse, and /usr/share/pulseaudio
Short Descriptions
|
esdcompat
|
is the PulseAudio ESD
wrapper script.
|
|
pacat
|
plays back or records raw or encoded audio streams on a
PulseAudio sound server.
|
|
pacmd
|
is a tool used to reconfigure a PulseAudio sound server during
runtime.
|
|
pactl
|
is used to control a running PulseAudio sound server.
|
|
padsp
|
is the PulseAudio OSS
Wrapper.
|
|
pamon
|
is a symbolic link to pacat.
|
|
paplay
|
is used to play audio files on a PulseAudio sound server.
|
|
parec
|
is a symbolic link to pacat.
|
|
parecord
|
is a symbolic link to pacat.
|
|
pasuspender
|
is a tool that can be used to tell a local PulseAudio sound server to
temporarily suspend access to the audio devices, to allow
other applications to access them directly.
|
|
pax11publish
|
is the PulseAudio X11
Credential Utility.
|
|
pulseaudio
|
is a networked low-latency sound server for Linux.
|
|
start-pulseaudio-x11
|
starts PulseAudio and
registers it to the X11 session manager.
|
Last updated on 2017-02-17 16:10:58 -0800