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alsa - Pi 3 B+ no audio device found - Raspberry Pi Stack ...
https://raspberrypi.stackexchange.com/questions/100759/pi-3-b-no-audio-device-found#:~:text=Equivalently%20to%20going%20to%20raspi-config%20and%20forcing%20an,device%22%20until%20i%20clicked%20on%20the%20icon.%20Share
Why is my audio (sound) output not working? - Raspberry Pi ...
https://raspberrypi.stackexchange.com/questions/44/why-is-my-audio-sound-output-not-working
This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)! Edit the /boot/config.txt file (see Raspberry-Pi Configuration File) and add the following line to the configuration file: hdmi_drive=2 Sound does not …
Raspberry Pi Documentation - Configuration
https://www.raspberrypi.com/documentation/configuration/audio-config.md
Note that on Raspberry Pi devices that support the 5GHz band (Pi3B+, Pi4, CM4, Pi400), wireless networking is disabled for regulatory reasons, until the country code has been set. To set the country code, open the Raspberry Pi Configuration application from the Preferences Menu, select Localisation and set the appropriate code.
Pi4 Raspbian "No audio devices found" - can't get 3.5mm ...
https://forums.raspberrypi.com/viewtopic.php?t=314543
HDMI devices do not show unless they are actually plugged in. It may be worthwhile looking at the mmap setting in your application. It may need setting to 0. Check device is unmuted and set to 0dB or 4dB (or whatever). The card names are now Headphones, b1 and b2 (not ALSA). Don't expect great audio out of Headphones.
Using a USB Audio Device with the ... - Raspberry Pi Spy
https://www.raspberrypi-spy.co.uk/2019/06/using-a-usb-audio-device-with-the-raspberry-pi/
Set USB Audio as Default Audio Device. The USB sound device can be made the default audio device by editing a system file “alsa.conf” : sudo nano /usr/share/alsa/alsa.conf. Scroll and find the following two lines: defaults.ctl.card 0 defaults.pcm.card 0. Change the 0 to a 1 to match the card number of the USB device :
pi 4 - How can I change the audio output device from the ...
https://raspberrypi.stackexchange.com/questions/127515/how-can-i-change-the-audio-output-device-from-the-command-line
I can only use the amixer commands to turn off or on the device that is already selected in raspi-config. Edit: I think it has to do with the ~/.asoundrc file. If I own the file sudo chown myusername:myusername ~/.asoundrc and then edit the card value to 0 (hdmi) or 1 (headphones) in the following section.
Raspberry Pi Documentation - The config.txt file
https://www.raspberrypi.com/documentation/computers/config_txt.html
On the Raspberry Pi 4, if both HDMI ports are in use, then the EDID will be checked against both of them, and subsequent configuration applied only to the first matching device. You can determine the EDID names for both ports by first running tvservice -l in a terminal window to list all attached devices and then using the returned numerical IDs in tvservice -v <id> -n to find the EDID name …
Unable to output analog audio out of Raspberry Pi 4 ...
https://forum.libreelec.tv/thread/23401-unable-to-output-analog-audio-out-of-raspberry-pi-4/
dtparam=audio=on. If there's not such line or if it's commented by # , edit the /flash/config.txt file ( Config.txt - LibreELEC.wiki ) to add it or uncomment and reboot the device. Then you can set the analogue jack as output device (in LE 9.2.6 also together with HDMI audio) in Settings / System / Audio /Audio output device . If everything is set properly and audio output …
How do I enable USB audio for GUI applications on Raspbian ...
https://raspberrypi.stackexchange.com/questions/58193/how-do-i-enable-usb-audio-for-gui-applications-on-raspbian-alsa-command-line-i
So, by default, I get the built-in sound on the command line after login, but I can edit/delete .asoundrc and everything's fine on the CLI. The GUI (e.g., pimixer aka "Audio Device Manager") ONLY seems to see the built-in audio. The USB card is visible via e.g., aplay -l, but not in the pimixer drop-down.
New install on raspberry pi 4 audio not working ...
https://forum.manjaro.org/t/new-install-on-raspberry-pi-4-audio-not-working/46383
Test to verify sound is not playing via the headphone jack by default: $ aplay /usr/share/sounds/alsa/Front_Center.wav. Click on the microphone icon on the task bar to display popup panel. Hover over Built-in Audio Stereo to display a side popup panel with three button selections, all of them labeled Built-in Audio Stereo.
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