Difference between revisions of "Talk:ALSA"
From Free Knowledge Base- The DUCK Project: information for everyone
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If you have at least the devices controlC0 and pcmC0D0p or similar, then your sound modules have been detected and loaded properly. | If you have at least the devices controlC0 and pcmC0D0p or similar, then your sound modules have been detected and loaded properly. | ||
| − | == display | + | == display sound cards and capture devices == |
As an example: | As an example: | ||
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Subdevices: 1/1 | Subdevices: 1/1 | ||
Subdevice #0: subdevice #0 | Subdevice #0: subdevice #0 | ||
| + | |||
| + | == microphone boost == | ||
| + | |||
| + | check | ||
| + | amixer -c0 controls | grep -i mic | ||
| + | numid=15,iface=MIXER,name='Mic Boost (+20dB)' | ||
| + | numid=32,iface=MIXER,name='Mic Select' | ||
| + | numid=13,iface=MIXER,name='Mic Playback Switch' | ||
| + | numid=14,iface=MIXER,name='Mic Playback Volume' | ||
Latest revision as of 01:25, 26 March 2021
checking things
You can assume that udev will autodetect your sound properly. You can check this with the command:
lsmod | grep '^snd' | column -t
If the output looks similar, your sound drivers have been successfully autodetected.
You might also want to check the directory /dev/snd/ for the right device files:
ls -l /dev/snd
If you have at least the devices controlC0 and pcmC0D0p or similar, then your sound modules have been detected and loaded properly.
display sound cards and capture devices
As an example:
$ aplay -l && arecord -l **** List of PLAYBACK Hardware Devices **** card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: AudioPCI [Ensoniq AudioPCI], device 1: ES1371/2 [ES1371 DAC1] Subdevices: 1/1 Subdevice #0: subdevice #0 **** List of CAPTURE Hardware Devices **** card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC] Subdevices: 1/1 Subdevice #0: subdevice #0
microphone boost
check
amixer -c0 controls | grep -i mic numid=15,iface=MIXER,name='Mic Boost (+20dB)' numid=32,iface=MIXER,name='Mic Select' numid=13,iface=MIXER,name='Mic Playback Switch' numid=14,iface=MIXER,name='Mic Playback Volume'
