@related : Sound Audio ALSA M5451 Multimedia audio controller SPDIF Ubuntu OSS Linux Kernel MIDI MAO LenovO EsI HdA

todo

REFERENCE

[[Jack]] : [[SFX]] [[VST]]

alsa_pcm: xrun of at least 156.211 msecs

[[MIDI]]

$ cat /proc/asound/cards
cat /proc/asound/oss/sndstat | grep devices
# Audio devices:
# Synth devices: NOT ENABLED IN CONFIG
# Midi devices: NOT ENABLED IN CONFIG
$ lsmod | grep snd
pmidi -l
Port     Client name                       Port name
14:0     Midi Through                      Midi Through Port-0
pmidi -p 14:0  anna-magdalena-04-guitar-tab.mid

ToDo ; how to encode alsa input and stream

arecord -D plughw:0,0 -c 1 -r 8000 -f S16_LE - | aplay -D plughw:0,0 -c 1 -r 8000 -f S16_LE -
sox -V -r 48000 -w -t alsa /dev/snd/pcmC0D0c  -t .wav test.wav
ALSA lib pcm.c:2099:(snd_pcm_open_noupdate) Unknown PCM /dev/snd/pcmC0D0c
sox: Failed reading /dev/snd/pcmC0D0c: cannot open audio device

The goal was to make a .ogg file from this propaganda :

Misc, [[Debian]]

alsaconf
dpkg -L alsa-utils | grep alsamixer

http://www.sabi.co.uk/Notes/linuxSoundALSA.html#issues

[[Bug]]

Q:

 "ALSA lib pcm_dmix.c:1068:(snd_pcm_dmix_open) unable to open slave"

A:

 http://alsa.opensrc.org/index.php/FAQ#I_configured_dmix_but_still_get_unable_to_open_slave_or_Device_or_resource_busy
#  kill $(fuser -v /dev/snd/* ) 

Q:

alsamixer
# alsamixer: function snd_ctl_open failed for default: No such device
# https://bugtrack.alsa-project.org/wiki/wikka.php?wakka=TroubleShooting

A:

chmod -R a+rwX /dev/snd/

hardware

ANDROID

MISC

MORE

alsa.txt · Last modified: 2012/11/04 20:58 (external edit)
 
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