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arecord: Linux Command to List all Soundcards and …
https://www.cyberciti.biz/tips/howto-display-soundcards-digital-audio-devices.html
Just use the arecord command line sound recorder and player for ALSA soundcard driver. The -l option List all soundcards and digital audio devices. The -L option list all PCMs defined. The information obtained from following command can be used to play various media files or digital stream such as radio, tv and more. ADVERTISEMENT
sound - How to list/access all the available audio input ...
https://askubuntu.com/questions/891623/how-to-list-access-all-the-available-audio-input-and-output-ports-channels-of-a
In Windows 7, I used to use pymedia, a python library, to list the available interfaces as well as use them for playing and recording audio.A typical query would look like this: Now, I'm no longer using Windows 7 as I have migrated to Ubuntu 16.04. So, I used ALSA commands to see the available audio interfaces.
List available ALSA audio devices - MATLAB ...
https://ch.mathworks.com/help///supportpkg/raspberrypi/ref/listaudiodevices.html
To list all connected ALSA audio output devices: Create a connection to the Raspberry Pi hardware. raspPiObj = raspberrypi ( '192.168.1.5', 'pi', 'raspberrypi') Use the listAudioDevices function. In the function, specify audioType as 'playback'.
Finding all the devices I can use to play PCM with ALSA
https://stackoverflow.com/questions/6866103/finding-all-the-devices-i-can-use-to-play-pcm-with-alsa
Then I need to use these devices to capture and plaback the audio. What I have done is pretty simple. There is a linux/unix command which is used to find the devices through alsa utility in linux. It is: aplay -l. Now what I did is just …
DeviceNames - AlsaProject
https://www.alsa-project.org/main/index.php/DeviceNames
Playback device names default. This is the recommended device name for most applications. The default device will usually use Pulseaudio or dmix, i.e. software mixing, which ensures that your application won't prevent other audio applications from working at the same time, in case the hardware doesn't provide mixing support itself.
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