UbuntuStudio 12.04 pulseaudio 24bit/96kHzの再生

参考にしたところは、

https://wiki.archlinux.org/index.php/PulseAudio

zenlabo report Ubuntuで24bit/96kHzのファイルを再生

http://blog.zenlabo.com/?p=144

音源は

http://www.lessloss.com/high-resolution-audiophile-recordings-c-68.html

PulseAudioの初期設定の確認

$ pulseaudio --dump-conf

### 設定ファイルから読み込み: /etc/pulse/daemon.conf ###

daemonize = no

fail = yes

high-priority = yes

nice-level = -11

realtime-scheduling = yes

realtime-priority = 5

allow-module-loading = yes

allow-exit = yes

use-pid-file = yes

system-instance = no

local-server-type = user

cpu-limit = no

enable-shm = yes

flat-volumes = no

lock-memory = no

exit-idle-time = 20

scache-idle-time = 20

dl-search-path = /usr/lib/pulse-1.1/modules

default-script-file = /etc/pulse/default.pa

load-default-script-file = yes

log-target = auto

log-level = notice

resample-method = speex-float-1

enable-remixing = yes

enable-lfe-remixing = no

default-sample-format = s16le

default-sample-rate = 44100

default-sample-channels = 2

default-channel-map = front-left,front-right

default-fragments = 8

default-fragment-size-msec = 10

enable-deferred-volume = yes

deferred-volume-safety-margin-usec = 1

deferred-volume-extra-delay-usec = 0

shm-size-bytes = 0

log-meta = no

log-time = no

log-backtrace = 0

rlimit-fsize = -1

rlimit-data = -1

rlimit-stack = -1

rlimit-core = -1

rlimit-rss = -1

rlimit-as = -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

Visual Analyser 2011

設定ファイルを書き換えをします。

sudo gedit /etc/pulse/daemon.conf

 　以下の2行を修正します。

; default-sample-format = s16le

; default-sample-rate = 44100

　↓修正

default-sample-format = s24le

default-sample-rate = 96000

PulseAudioの再起動をします。

$ pulseaudio --kill && pulseaudio --start

Visual Analyser 2011