[Résolu]Son 5.1 - Pas de sortie sur front-center
J'espère trouver de l'aide auprès de cette sympathique communauté.
Je suis sous Xubuntu 18.04 Bionic x64.
J'utilise le pilote ALSA avec Pulseaudio
Mar carte son: Audio: High Definition Audio Realtek ALC892 8 canaux
Je ne parviens pas à obtenir de son sur le haut-parleur central.
J'ai effectué un speaker-test, dont coici la sortie:
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neelix@cochrane:~$ speaker-test -Dplug:surround51 -c6 -l1 -twav speaker-test 1.1.3 Le périphérique de lecture est plug:surround51 Les paramètres du flux sont 48000Hz, S16_LE, 6 canaux fichier(s) WAV La fréquence est 48000Hz (demandée 48000Hz) L'intervalle de la taille du tampon est de 64 à 5440 L'intervalle de la taille de la période est de 32 à 2720 Taille max. de tampon 5440 utilisée Périodes = 4 La durée de la période à été définie= 1088 La taille du tampon à été définie = 5440 0 - Front Left 4 - Front Center 1 - Front Right 3 - Rear Right 2 - Rear Left 5 - LFE Temps par période = 8,531733
Le front-center reste muet, alors que toutes les autres sorties fonctionnent.
Voici mes paramètres:
Pour /etc/pulse/daemon.conf:
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resample-method = src-sinc-best-quality ; avoid-resampling = false enable-remixing = yes remixing-use-all-sink-channels = yes enable-lfe-remixing = yes ; lfe-crossover-freq = 0 default-sample-format = s16le default-sample-rate = 44100 alternate-sample-rate = 48000 default-sample-channels = 6 default-channel-map = front-left,front-right,rear-left,rear-right,front-center,lfe
Pour ~/.asoundrc:
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pcm.a52 { @args [ CARD ] @args.CARD { type string default 0 } type plug slave { pcm { type a52 channels 6 bitrate 640 rate 48000 card $CARD } } hint.show on hint.description "encodage Dolby Surround avec a52" }
Pour /etc/pulse/default.pa:
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.fail ### Automatically restore the volume of streams and devices load-module module-device-restore load-module module-stream-restore load-module module-card-restore ### Automatically augment property information from .desktop files ### stored in /usr/share/application load-module module-augment-properties ### Should be after module-*-restore but before module-*-detect load-module module-switch-on-port-available ### Use hot-plugged devices like Bluetooth or USB automatically (LP: #1702794) .ifexists module-switch-on-connect.so load-module module-switch-on-connect .endif ### 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-alsa-sink device=hw:0,0 tsched=0 #load-module module-alsa-source device=hw:0,0 #load-module module-oss device="/dev/dsp" sink_name=output source_name=input #load-module module-oss-mmap device="/dev/dsp" sink_name=output source_name=input #load-module module-null-sink #load-module module-pipe-sink ### Automatically load driver modules depending on the hardware available .ifexists module-udev-detect.so load-module module-udev-detect tsched=0 .else ### Use the static hardware detection module (for systems that lack udev support) load-module module-detect .endif ### Automatically connect sink and source if JACK server is present .ifexists module-jackdbus-detect.so .nofail load-module module-jackdbus-detect channels=2 .fail .endif ### Automatically load driver modules for Bluetooth hardware .ifexists module-bluetooth-policy.so load-module module-bluetooth-policy .endif .ifexists module-bluetooth-discover.so load-module module-bluetooth-discover .endif ### Load several protocols .ifexists module-esound-protocol-unix.so load-module module-esound-protocol-unix .endif load-module module-native-protocol-unix ### Network access (may be configured with paprefs, so leave this commented ### here if you plan to use paprefs) #load-module module-esound-protocol-tcp #load-module module-native-protocol-tcp #load-module module-zeroconf-publish ### Load the RTP receiver module (also configured via paprefs, see above) #load-module module-rtp-recv ### Load the RTP sender module (also configured via paprefs, see above) #load-module module-null-sink sink_name=rtp format=s16be channels=2 rate=44100 sink_properties="device.description='RTP Multicast Sink'" #load-module module-rtp-send source=rtp.monitor ### Load additional modules from GConf settings. This can be configured with the paprefs tool. ### Please keep in mind that the modules configured by paprefs might conflict with manually ### loaded modules. .ifexists module-gconf.so .nofail load-module module-gconf .fail .endif ### Automatically restore the default sink/source when changed by the user ### during runtime ### NOTE: This should be loaded as early as possible so that subsequent modules ### that look up the default sink/source get the right value load-module module-default-device-restore ### Automatically move streams to the default sink if the sink they are ### connected to dies, similar for sources load-module module-rescue-streams ### Make sure we always have a sink around, even if it is a null sink. load-module module-always-sink ### Honour intended role device property load-module module-intended-roles ### Automatically suspend sinks/sources that become idle for too long load-module module-suspend-on-idle ### If autoexit on idle is enabled we want to make sure we only quit ### when no local session needs us anymore. .ifexists module-console-kit.so load-module module-console-kit .endif .ifexists module-systemd-login.so load-module module-systemd-login .endif ### Enable positioned event sounds load-module module-position-event-sounds ### Cork music/video streams when a phone stream is active load-module module-role-cork ### Block audio recording for snap confined packages unless they have ### the "pulseaudio" or "audio-record" interfaces plugged. .ifexists module-snap-policy.so load-module module-snap-policy .endif ### Modules to allow autoloading of filters (such as echo cancellation) ### on demand. module-filter-heuristics tries to determine what filters ### make sense, and module-filter-apply does the heavy-lifting of ### loading modules and rerouting streams. load-module module-filter-heuristics load-module module-filter-apply ### Make some devices default #set-default-sink output #set-default-source input load-module module-equalizer-sink load-module module-dbus-protocol
Voici pour les détails sur le matériel:
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neelix@cochrane:~$ lspci | grep [Aa]udio && lsusb | grep [Aa]udio 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40) 01:00.1 Audio device: NVIDIA Corporation GF116 High Definition Audio Controller (rev a1)
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neelix@cochrane:~$ cat /proc/asound/pcm 00-00: ALC892 Analog : ALC892 Analog : playback 1 : capture 1 00-01: ALC892 Digital : ALC892 Digital : playback 1 00-02: ALC892 Alt Analog : ALC892 Alt Analog : capture 1 01-03: HDMI 0 : HDMI 0 : playback 1 01-07: HDMI 0 : HDMI 0 : playback 1 01-08: HDMI 0 : HDMI 0 : playback 1 01-09: HDMI 0 : HDMI 0 : playback 1 02-00: USB Audio : USB Audio : capture 1
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sudo fuser -v /dev/snd/* [sudo] Mot de passe de neelix : UTIL. PID ACCÈS COMMANDE /dev/snd/controlC0: neelix 2554 F.... pulseaudio /dev/snd/controlC1: neelix 2554 F.... pulseaudio
Ainsi qu'une capture d'alsamixer:
