I have the following warnings while instantiating pyaudio.
chris@chris-Inspiron-3847:~/Documents/Projects/Papinhio player/setup/database_init$ python
Python 3.9.7 (default, Sep 10 2021, 14:59:43)
[GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyaudio
>>> p = pyaudio.PyAudio()
ALSA lib pcm_dmix.c:1075:(snd_pcm_dmix_open) unable to open slave
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
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:1075:(snd_pcm_dmix_open) unable to open slave
>>> exit()
chris@chris-Inspiron-3847:~/Documents/Projects/Papinhio player/setup/database_init$file: /usr/share/alsa/alsa.conf
#
# ALSA library configuration file
#
# pre-load the configuration files
@hooks [ { func load files [ "/usr/etc/alsa/conf.d" "/etc/alsa/conf.d" "/etc/asound.conf|||/usr/etc/asound.conf" "~/.asoundrc" { @func concat strings [ { @func getenv vars [ XDG_CONFIG_HOME ] default "~/.config" } "/alsa/asoundrc" ] } ] errors false }
]
# load card-specific configuration files (on request)
cards.@hooks [ { func load files [ { @func concat strings [ { @func datadir } "/cards/aliases.conf" ] } ] } { func load_for_all_cards files [ { @func concat strings [ { @func datadir } "/cards/" { @func private_string } ".conf" ] } ] errors false }
]
#
# defaults
#
# show all name hints also for definitions without hint {} section
defaults.namehint.showall on
# show just basic name hints
defaults.namehint.basic on
# show extended name hints
defaults.namehint.extended on
#
defaults.ctl.card 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.pcm.subdevice -1
defaults.pcm.nonblock 1
defaults.pcm.compat 0
defaults.pcm.minperiodtime 5000 # in us
defaults.pcm.ipc_key 5678293
defaults.pcm.ipc_gid audio
defaults.pcm.ipc_perm 0660
defaults.pcm.tstamp_type default
defaults.pcm.dmix.max_periods 0
defaults.pcm.dmix.channels 2
defaults.pcm.dmix.rate 48000
defaults.pcm.dmix.format unchanged
defaults.pcm.dmix.card defaults.pcm.card
defaults.pcm.dmix.device defaults.pcm.device
defaults.pcm.dsnoop.card defaults.pcm.card
defaults.pcm.dsnoop.device defaults.pcm.device
defaults.pcm.front.card defaults.pcm.card
defaults.pcm.front.device defaults.pcm.device
defaults.pcm.rear.card defaults.pcm.card
defaults.pcm.rear.device defaults.pcm.device
defaults.pcm.center_lfe.card defaults.pcm.card
defaults.pcm.center_lfe.device defaults.pcm.device
defaults.pcm.side.card defaults.pcm.card
defaults.pcm.side.device defaults.pcm.device
#defaults.pcm.surround21.card defaults.pcm.card
#defaults.pcm.surround21.device defaults.pcm.device
#defaults.pcm.surround40.card defaults.pcm.card
#defaults.pcm.surround40.device defaults.pcm.device
#defaults.pcm.surround41.card defaults.pcm.card
#defaults.pcm.surround41.device defaults.pcm.device
#defaults.pcm.surround50.card defaults.pcm.card
#defaults.pcm.surround50.device defaults.pcm.device
#defaults.pcm.surround51.card defaults.pcm.card
#defaults.pcm.surround51.device defaults.pcm.device
#defaults.pcm.surround71.card defaults.pcm.card
#defaults.pcm.surround71.device defaults.pcm.device
defaults.pcm.iec958.card defaults.pcm.card
defaults.pcm.iec958.device defaults.pcm.device
defaults.pcm.modem.card defaults.pcm.card
defaults.pcm.modem.device defaults.pcm.device
defaults.pcm.file_format raw
defaults.pcm.file_truncate true # truncate files via file or tee PCM
defaults.rawmidi.card 0
defaults.rawmidi.device 0
defaults.rawmidi.subdevice -1
defaults.hwdep.card 0
defaults.hwdep.device 0
defaults.timer.class 2
defaults.timer.sclass 0
defaults.timer.card 0
defaults.timer.device 0
defaults.timer.subdevice 0
#
# PCM interface
#
pcm.hw { @args [ CARD DEV SUBDEV ] @args.CARD { type string default { @func getenv vars [ ALSA_PCM_CARD ALSA_CARD ] default { @func refer name defaults.pcm.card } } } @args.DEV { type integer default { @func igetenv vars [ ALSA_PCM_DEVICE ] default { @func refer name defaults.pcm.device } } } @args.SUBDEV { type integer default { @func refer name defaults.pcm.subdevice } } type hw card $CARD device $DEV subdevice $SUBDEV hint { show { @func refer name defaults.namehint.extended } description "Direct hardware device without any conversions" }
}
pcm.plughw { @args [ CARD DEV SUBDEV ] @args.CARD { type string default { @func getenv vars [ ALSA_PCM_CARD ALSA_CARD ] default { @func refer name defaults.pcm.card } } } @args.DEV { type integer default { @func igetenv vars [ ALSA_PCM_DEVICE ] default { @func refer name defaults.pcm.device } } } @args.SUBDEV { type integer default { @func refer name defaults.pcm.subdevice } } type plug slave.pcm { type hw card $CARD device $DEV subdevice $SUBDEV } hint { show { @func refer name defaults.namehint.extended } description "Hardware device with all software conversions" }
}
pcm.plug { @args [ SLAVE ] @args.SLAVE { type string } type plug slave.pcm $SLAVE
}
pcm.shm { @args [ SOCKET PCM ] @args.SOCKET { type string } @args.PCM { type string } type shm server $SOCKET pcm $PCM
}
pcm.tee { @args [ SLAVE FILE FORMAT ] @args.SLAVE { type string } @args.FILE { type string } @args.FORMAT { type string default { @func refer name defaults.pcm.file_format } } type file slave.pcm $SLAVE file $FILE format $FORMAT truncate { @func refer name defaults.pcm.file_truncate }
}
pcm.file { @args [ FILE FORMAT ] @args.FILE { type string } @args.FORMAT { type string default { @func refer name defaults.pcm.file_format } } type file slave.pcm null file $FILE format $FORMAT truncate { @func refer name defaults.pcm.file_truncate }
}
pcm.null { type null hint { show { @func refer name defaults.namehint.basic } description "Discard all samples (playback) or generate zero samples (capture)" }
}
# redirect to load-on-demand extended pcm definitions
pcm.cards cards.pcm
pcm.default cards.pcm.default
pcm.sysdefault cards.pcm.default
pcm.front cards.pcm.front
#pcm.rear cards.pcm.rear
#pcm.center_lfe cards.pcm.center_lfe
#pcm.side cards.pcm.side
#pcm.surround21 cards.pcm.surround21
#pcm.surround40 cards.pcm.surround40
#pcm.surround41 cards.pcm.surround41
#pcm.surround50 cards.pcm.surround50
#pcm.surround51 cards.pcm.surround51
#pcm.surround71 cards.pcm.surround71
pcm.iec958 cards.pcm.iec958
pcm.spdif iec958
pcm.hdmi cards.pcm.hdmi
pcm.dmix cards.pcm.dmix
pcm.dsnoop cards.pcm.dsnoop
pcm.modem cards.pcm.modem
pcm.phoneline cards.pcm.phoneline
#
# Control interface
#
ctl.sysdefault { type hw card { @func getenv vars [ ALSA_CTL_CARD ALSA_CARD ] default { @func refer name defaults.ctl.card } } hint.description "Default control device"
}
ctl.default ctl.sysdefault
ctl.hw { @args [ CARD ] @args.CARD { type string default { @func getenv vars [ ALSA_CTL_CARD ALSA_CARD ] default { @func refer name defaults.ctl.card } } } type hw card $CARD hint.description "Direct control device"
}
ctl.shm { @args [ SOCKET CTL ] @args.SOCKET { type string } @args.CTL { type string } type shm server $SOCKET ctl $CTL
}
#
# RawMidi interface
#
rawmidi.default { type hw card { @func getenv vars [ ALSA_RAWMIDI_CARD ALSA_CARD ] default { @func refer name defaults.rawmidi.card } } device { @func igetenv vars [ ALSA_RAWMIDI_DEVICE ] default { @func refer name defaults.rawmidi.device } } hint.description "Default raw MIDI device"
}
rawmidi.hw { @args [ CARD DEV SUBDEV ] @args.CARD { type string default { @func getenv vars [ ALSA_RAWMIDI_CARD ALSA_CARD ] default { @func refer name defaults.rawmidi.card } } } @args.DEV { type integer default { @func igetenv vars [ ALSA_RAWMIDI_DEVICE ] default { @func refer name defaults.rawmidi.device } } } @args.SUBDEV { type integer default -1 } type hw card $CARD device $DEV subdevice $SUBDEV hint { description "Direct rawmidi driver device" device $DEV }
}
rawmidi.virtual { @args [ MERGE ] @args.MERGE { type string default 1 } type virtual merge $MERGE
}
#
# Sequencer interface
#
seq.default { type hw hint.description "Default sequencer device"
}
seq.hw { type hw
}
#
# HwDep interface
#
hwdep.default { type hw card { @func getenv vars [ ALSA_HWDEP_CARD ALSA_CARD ] default { @func refer name defaults.hwdep.card } } device { @func igetenv vars [ ALSA_HWDEP_DEVICE ] default { @func refer name defaults.hwdep.device } } hint.description "Default hardware dependent device"
}
hwdep.hw { @args [ CARD DEV ] @args.CARD { type string default { @func getenv vars [ ALSA_HWDEP_CARD ALSA_CARD ] default { @func refer name defaults.hwdep.card } } } @args.DEV { type integer default { @func igetenv vars [ ALSA_HWDEP_DEVICE ] default { @func refer name defaults.hwdep.device } } } type hw card $CARD device $DEV hint { description "Direct hardware dependent device" device $DEV }
}
#
# Timer interface
#
timer_query.default { type hw
}
timer_query.hw { type hw
}
timer.default { type hw class { @func refer name defaults.timer.class } sclass { @func refer name defaults.timer.sclass } card { @func refer name defaults.timer.card } device { @func refer name defaults.timer.device } subdevice { @func refer name defaults.timer.subdevice } hint.description "Default timer device"
}
timer.hw { @args [ CLASS SCLASS CARD DEV SUBDEV ] @args.CLASS { type integer default { @func refer name defaults.timer.class } } @args.SCLASS { type integer default { @func refer name defaults.timer.sclass } } @args.CARD { type string default { @func refer name defaults.timer.card } } @args.DEV { type integer default { @func refer name defaults.timer.device } } @args.SUBDEV { type integer default { @func refer name defaults.timer.subdevice } } type hw class $CLASS sclass $SCLASS card $CARD device $DEV subdevice $SUBDEV hint { description "Direct timer device" device $DEV }
}Despite the warnings, the module seems to work well (not fully tested).
Still I'd like to remove them if possible. Any suggestions?
1 Reset to default
