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linux:pulse_audio [2015/08/06 06:03] – created niziak | linux:pulse_audio [2023/02/10 10:33] (current) – niziak | ||
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====== Pulse Audio ====== | ====== Pulse Audio ====== | ||
- | killall pulseaudio | + | Some nice graphical tools: |
- | pulseudio -v | + | <code bash> |
+ | sudo apt-get install paprefs pavucontrol | ||
+ | </ | ||
+ | <code bash>killall pulseaudio</ | ||
+ | < | ||
+ | <code bash> | ||
pacmd list-sinks | pacmd list-sinks | ||
pacmd list-cards | pacmd list-cards | ||
+ | </ | ||
+ | |||
+ | |||
+ | |||
+ | ====== disable autospawn ====== | ||
+ | |||
+ | <file | / | ||
+ | ; autospawn = yes | ||
+ | </ | ||
+ | |||
+ | <code bash> | ||
+ | pulseaudio --kill | ||
+ | pulseaudio -v | ||
+ | </ | ||
+ | |||
+ | ===== mpd player ===== | ||
+ | * add user '' | ||
+ | * Configure pulse to connect to existing pulseaudio server using network | ||
+ | |||
+ | < | ||
+ | audio_output { | ||
+ | type " | ||
+ | name "MPD PulseAudio Output" | ||
+ | server | ||
+ | } | ||
+ | </ | ||
+ | * Add TCP server module to pulseaudio | ||
+ | <file | / | ||
+ | load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1 | ||
+ | </ | ||
+ | |||
+ | |||
+ | ===== no alsa MIC input ===== | ||
+ | |||
+ | Check for existence of arecord process. It can be used to sample noise and feed a kernel entropy (package **randomsound**) | ||
+ | |||
+ | [[https:// | ||
+ | |||
+ | randomsound has to be started AFTER pulse audio. It is hard to achieve because pulse is started as from user graphical session. | ||
+ | As workaround it is nice to disable or remove rendomsound package. | ||
+ | |||
+ | |||
+ | ===== Simultaneous on HDMI and Analog ===== | ||
+ | Run paprefs, go to last tab " | ||
+ | This will add new device for both HDMI and Analog output and set it as default one. | ||
+ | |||
+ | ===== No sound ===== | ||
+ | As as normal user try to start <code bash> | ||
+ | < | ||
+ | E: [pulseaudio] core-util.c: | ||
+ | </ | ||
+ | |||
+ | <code bash> | ||
+ | ls -l / | ||
+ | </ | ||
+ | shows that pulse dir is owned by root (Probably pusleaudio was spawned when user switch to root using su or sudo) | ||
+ | < | ||
+ | |||
Line 30: | Line 93: | ||
device.product.name = " | device.product.name = " | ||
</ | </ | ||
+ | |||
+ | |||
+ | <code bash> | ||
+ | $ aplay -l | ||
+ | **** List of PLAYBACK Hardware Devices **** | ||
+ | card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog] | ||
+ | Subdevices: 1/1 | ||
+ | Subdevice #0: subdevice #0 | ||
+ | card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital] | ||
+ | Subdevices: 1/1 | ||
+ | Subdevice #0: subdevice #0 | ||
+ | card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] | ||
+ | Subdevices: 1/1 | ||
+ | Subdevice #0: subdevice #0 | ||
+ | card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0] | ||
+ | Subdevices: 1/1 | ||
+ | Subdevice #0: subdevice #0 | ||
+ | card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0] | ||
+ | Subdevices: 1/1 | ||
+ | Subdevice #0: subdevice #0 | ||
+ | card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0] | ||
+ | Subdevices: 1/1 | ||
+ | Subdevice #0: subdevice #0 | ||
+ | </ | ||
+ | |||
+ | Reloeading UDEV detecection module doesn' | ||
+ | <code bash> | ||
+ | pacmd unload-module module-udev-detect && pacmd load-module module-udev-detect | ||
+ | </ | ||
+ | After this I got doubled USB camera and NVIDIA output :( | ||
+ | |||
+ | |||
+ | |||
+ | <file / | ||
+ | ### Load audio drivers statically | ||
+ | ### (it's probably better to not load these drivers manually, but instead | ||
+ | ### use module-udev-detect -- see below -- for doing this automatically) | ||
+ | # | ||
+ | # | ||
+ | # | ||
+ | # | ||
+ | # | ||
+ | # | ||
+ | ... | ||
+ | load-module module-udev-detect | ||
+ | ... | ||
+ | </ | ||
+ | |||
+ | |||
+ | |||
+ | |||
pusleaudio -v shows lots of | pusleaudio -v shows lots of | ||
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<code bash> | <code bash> | ||
killall pulseaudio | killall pulseaudio | ||
- | rm ~/ | + | rm -r ~/ |
pulseaudio -v | pulseaudio -v | ||
</ | </ | ||
+ | |||
+ | load-module module-alsa-sink device=hdmi: | ||
+ | load-module module-combine-sink sink_name=combined | ||
+ | set-default-sink combined | ||