修正する:今日のアップグレードでalsa-lib-1.1.7-2この問題が解決されました。 (2018-11-23)
Arch Linux、最新。いつものように-Syuアップグレードすると、すべてが再び中断されます。今回は大胆だ。一般的に大胆どの他の再生/録音アプリが表示されますpauvcontrol。太字で表示されなくなりました。pauvcontrolこれで、音声を録音したり、再生したいシンクとソースを選択したりするために、大胆さを使用できるようになりました。
Fearless Preferencesでは、ALSAトップドロップダウンメニューにのみ表示されており、もともとそうであるのか、それともPulseAudio以前に言及されたことがあるのかわかりません。私のデバイスはすべて再生タブにもありません。録音デバイスの選択も同じですが、録音する必要があるループバックデバイスがそこにあるので機能します。
ところで、今は果敢な音も出したいのですが、それはもうダメだったんですよ。私のUSB再生デバイスは一覧表示されず、設定するとエラーsysdefaultメッセージのみが表示されます。
$ pulseaudio -v
pulseaudio 12.2
$ audacity --version
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-params>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-params.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-params.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-midigate>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-midigate.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-midigate.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-fifths>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-fifths.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-fifths.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-metro>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-metro.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-metro.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-amp>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-amp.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-amp.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-sampler>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-sampler.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-sampler.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-scope#Mono>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-scope.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-scope.lv2/ (ignored)
lilv_world_add_plugin(): warning: Duplicate plugin <http://lv2plug.in/plugins/eg-scope#Stereo>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/eg-scope.lv2/
lilv_world_add_plugin(): warning: ... and file:///usr/lib64/lv2/eg-scope.lv2/ (ignored)
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-params>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-midigate>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-fifths>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-metro>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-amp>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-sampler>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-scope#Mono>
lilv_world_add_plugin(): warning: Reloading plugin <http://lv2plug.in/plugins/eg-scope#Stereo>
これらの警告が何を意味するのかわからないので、バージョンは印刷されません。
パッケージはaudacity-2.3.0-1-x86_64.pkg.tar.xz
Audacityを起動したときのコンソールログ全体：
ALSA lib pcm_dmix.c:1099:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM iec958
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM spdif
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM spdif
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.hdmi.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM hdmi
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.hdmi.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM hdmi
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.modem.0:CARD=0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline:CARD=0,DEV=0
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.modem.0:CARD=0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline:CARD=0,DEV=0
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.modem.0:CARD=0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM phoneline
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.Loopback.pcm.modem.0:CARD=0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM phoneline
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
Expression 'alsa_snd_pcm_hw_params_set_period_size_near( pcm, hwParams, &alsaPeriodFrames, &dir )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 924
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_dmix.c:1099:(snd_pcm_dmix_open) unable to open slave
Expression 'alsa_snd_pcm_hw_params_set_period_size_near( pcm, hwParams, &alsaPeriodFrames, &dir )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 924
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
これらのエラーがALSAによるものなのか、PulseAudioの問題と全く関係がないのかは不明です。