Dica:
ubuntu audio 5.1
ubuntu caixas de som 5.1
ubuntu home theater 5.
como configurar som Ubuntu Surround 5.1 CMI8738, placa genius
tive uma certa dificuldade com essa placa de som CMI8738, 5.1, 6ch da genius.
estava com o problema,
a cada musica ou video o audio desconfigurava,
dai tinha que clicar nas opções de audio
e trocar a opcao de 5.1 para 5.0
e clicar novamente na 5.1 que voltava a tocar as 6 caixas.
muito chato.
ja estava quase compilando o kernel com dicas encontradas ne web.
e achei varias dicas. que resumi todas abaixo.
sendo:
; para comentar e descomentar as opçẽs de configuração.
; comentado
descomentado
como fazer:
1.
abra o arquivo de configuração com o comando abaixo:
$ sudo gedit /etc/pulse/daemon.conf
2.
inclua essas linhas no final do arquivo removendo as repetidas.
#incluir esse truque
resample-method = speex-float-3
enable-remixing = yes
enable-lfe-remixing = yes
#trocar
; default-sample-format = s16le
; default-sample-format = float32le
default-sample-format = s16le
#trocar
; default-sample-rate = 44100
default-sample-rate = 48000
#trocar
; default-sample-channels = 2
default-sample-channels = 6
#trocar
; default-channel-map = front-left,front-right
default-channel-map = front-left,front-right,rear-left,rear-right,front-center,lfe
#trocar
default-fragments = 8
default-fragment-size-msec = 10
#trocar
; enable-deferred-volume = yes
deferred-volume-safety-margin-usec = 1
; deferred-volume-extra-delay-usec = 0
depois dde modificar o arquivo
$ sudo reboot
ao reiniciar vai funcionar o 5.1.
se não tem algo errado.
abraços.
arquivo:
# /etc/pulse/daemon.conf
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.
## Configuration file for the PulseAudio daemon. See pulse-daemon.conf(5) for
## more information. Default values are commented out. Use either ; or # for
## commenting.
; daemonize = no
; fail = yes
; allow-module-loading = yes
; allow-exit = yes
; use-pid-file = yes
; system-instance = no
; local-server-type = user
; enable-shm = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
; lock-memory = no
; cpu-limit = no
; high-priority = yes
; nice-level = -11
; realtime-scheduling = yes
; realtime-priority = 5
; exit-idle-time = 20
; scache-idle-time = 20
; dl-search-path = (depends on architecture)
; load-default-script-file = yes
; default-script-file = /etc/pulse/default.pa
; log-target = auto
; log-level = notice
; log-meta = no
; log-time = no
; log-backtrace = 0
#comentei aqui resample-method = speex-float-1
; enable-remixing = yes
; enable-lfe-remixing = no
flat-volumes = no
; rlimit-fsize = -1
; rlimit-data = -1
; rlimit-stack = -1
; rlimit-core = -1
; rlimit-as = -1
; rlimit-rss = -1
; rlimit-nproc = -1
; rlimit-nofile = 256
; rlimit-memlock = -1
; rlimit-locks = -1
; rlimit-sigpending = -1
; rlimit-msgqueue = -1
; rlimit-nice = 31
; rlimit-rtprio = 9
; rlimit-rttime = 1000000
; default-sample-format = s16le
; default-sample-rate = 44100
; alternate-sample-rate = 48000
; default-sample-channels = 2
; default-channel-map = front-left,front-right
#audio 5.1
#default-sample-channels = 6
default-fragments = 8
default-fragment-size-msec = 10
; enable-deferred-volume = yes
deferred-volume-safety-margin-usec = 1
; deferred-volume-extra-delay-usec = 0
#dicas web
resample-method = speex-float-3
enable-remixing = yes
enable-lfe-remixing = yes
default-sample-rate = 48000
default-sample-channels = 6
default-channel-map = front-left,front-right,rear-left,rear-right,front-center,lfe
#fim