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Getting Audio Out Working on the Raspberry Pi
https://projects-raspberry.com/getting-audio-out-working-on-the-raspberry-pi/
Therefore, to force the Raspberry Pi to use the analog output: amixer cset numid=3 1. Sound Check. With this done, you should be ready for a simple test. Plug a speaker into the (RPi) Audio Output 3.5mm jack. I used a simple battery powered iHM60 iHome speaker. The jack will not deliver much power, so the speaker needs to be powered.
RPi Zero 2 W Audio Gadget - Hackster.io
https://www.hackster.io/masonrf/rpi-zero-2-w-audio-gadget-448a6a
First, unload the current g_audio instance: sudo modprobe -r g_audio. Now start g_audio with parameters: sudo modprobe g_audio c_srate=96000 c_ssize=4 p_srate=96000 p_ssize=4 iProduct="Testing Device" You can read the current values by using: grep -H '' /sys/module/g_audio/parameters/*
audio - Playing sound through /dev/dsp? - Raspberry Pi ...
https://raspberrypi.stackexchange.com/questions/31277/playing-sound-through-dev-dsp
sudo modprobe snd_pcm_oss which created /dev/dsp and /dev/dsp1. /dsp corresponds to the internal soundcard whereas /dsp1 corresponds to the outer devie. When I type in: sudo cat sample.wav > /dev/dsp1 all I get is glitchy and extremely distorted sound. The same goes to when I cat the sound sample into the internal soundcard.
How do I load a module at boot time? - Raspberry Pi …
https://raspberrypi.stackexchange.com/questions/761/how-do-i-load-a-module-at-boot-time
Modprobe on Boot - Debian. To answer the specific question about sudo modprobe snd_bcm2835, add the module to /etc/modules and reboot. (You will need to be root to do this.) Starting services - Debian. Debian using initscripts to initialise the system, and you can use them to run arbitrary commands.
Raspberry Pi Command Line Audio - Raspberry Pi Spy
https://www.raspberrypi-spy.co.uk/2013/06/raspberry-pi-command-line-audio/
sudo apt-get -y install omxplayer. To play a sound file you simply need to type : omxplayer bubbling_water_1.mp3. The plus (+) and minus (-) keys can be used to adjust the volume of the playback. This post covers basic audio playing from the command line.
Using a USB Audio Device With a Raspberry Pi
https://computers.tutsplus.com/articles/using-a-usb-audio-device-with-a-raspberry-pi--mac-55876
Step 1. Before continuing, make sure your Raspberry Pi is switched off and then connect the USB audio device to its USB port. Remember, if you need access to both USB ports then use the USB audio device in conjunction with a USB extension cable, preventing the second port from being blocked.
disabling audio without editing config.txt - Raspberry Pi ...
https://forums.raspberrypi.com/viewtopic.php?t=151822
Location: A small cave in deepest darkest Basingstoke, UK. Re: disabling audio without editing config.txt. Sun Jun 19, 2016 10:55 am. You need to rmmod (or modprobe -r) all of these modules. Code: Select all. snd_pcm 95441 1 snd_bcm2835 snd_timer 22396 1 snd_pcm snd 68368 3 snd_bcm2835,snd_timer,snd_pcm.
Raspberry Pi Documentation - Configuration
https://www.raspberrypi.com/documentation/configuration/device-tree.md
The Raspberry Pi has up to three audio output modes: HDMI 1 and 2, if present, and a headphone jack. You can switch between these modes at any time.
Disable the Built-in Sound Card of Raspberry Pi : 3 Steps ...
https://www.instructables.com/Disable-the-Built-in-Sound-Card-of-Raspberry-Pi/
Step 1: Test That Raspberry Pi's Sound Chip Is Not Faulty. Complete the "Test sound card and speaker" instructable. This step is to eliminate the possibilty that Raspberry Pi build-in sound chip is not faulty. So that you know sound is not coming from the speaker is due to your configuration and not because of Raspberry Pi's sound card is faulty. Ask Question.
Updating ALSA Config | USB Audio Cards with a Raspberry Pi ...
https://learn.adafruit.com/usb-audio-cards-with-a-raspberry-pi/updating-alsa-config
sudo nano /etc/modprobe.d/alsa-base.conf. For all but the most recent Raspbian Wheezy releases, look for the line that reads: #options snd-usb-audio index=0. Change this to: options snd-usb-audio index=0. Note we removed the # at the start of the line. For the latest Raspbian Wheezy versions, look for this line instead: options snd-usb-audio index=-2
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