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Use 'ALSA' Audio Output in VLC to Lower the CPU Usage
https://www.hecticgeek.com/use-alsa-audio-output-in-vlc-to-lower-the-cpu-usage/
Now under the sub heading ‘Output’ -> ‘Output module’: click on the drop-down menu and choose ‘ALSA audio output’ as shown below. Now click on the ‘Save’ button at the bottom, and also close VLC as well. Step 4: Now reopen that same file with VLC and as it plays it, again switch over to ‘top’ utility and re-observe the CPU ...
alsa - Recording audio output - Unix & Linux Stack Exchange
https://unix.stackexchange.com/questions/27865/recording-audio-output
Go to the Recording tab on pavucontrol and set your recording software to "ALSA Capture from Monitor of Built-in Audio Analog Software". If nothing shows up in the "Recording" tab, then make sure your capture application is actually recording. Go to the Playback tab and adjust the levels for each process to your liking.
Output to Multiple Audio Devices with Alsa - Eliot Eshelman
http://www.6by9.net/output-to-multiple-audio-devices-with-alsa/
What caused difficulty was getting audio output to both the onboard and SoundBlaster audio devices at the same time. By default, Linux applications will send audio directly to one specific device. All you need is a properly structured ~/.asoundrc file to configure ALSA. I had to do a bit of hunting on the web and some trial-and-error.
Alsa audio Output error: cannot open alsa device "default ...
https://bbs.archlinux.org/viewtopic.php?id=272471
Re: Alsa audio Output error: cannot open alsa device "default" Afaik unconfigured standard ALSA defaults to hw:0,0 and if that isn't even present because HDMI likes to be 0,1 you need to change the ALSA setup anyway, assuming it would work in the first place, which I tried to find out with the speaker-tests.
Sound configuration on Raspberry Pi with ALSA
http://blog.scphillips.com/posts/2013/01/sound-configuration-on-raspberry-pi-with-alsa/
Looking at the top part of the output, we can see that the playback volume for the left and right channels are both at maximum (65536, which is 2^16) and are both unmuted (“on”). To control these settings we can use the alsamixer command which gives a graphical display (in your terminal) or the amixer command. Let’s look at amixer first:
[SOLVED] Pulseaudio/Alsa no sound output on Analog Stereo ...
https://bbs.archlinux.org/viewtopic.php?id=227875
alsa.name = "ALC892 Analog" alsa.id = "ALC892 Analog" alsa.subdevice = "1" alsa.subdevice_name = "subdevice #1" alsa.device = "1" if you were using the correct sink. You should have 2 sinks available from that 1 device, one for Analog and one for Digital. Only Digital is available for you to use. I don't know why. Offline
Noob’s Guide to Linux Audio: ALSA, OSS, and Pulse Audio ...
https://linuxhint.com/guide_linux_audio/
The job of PulseAudio is to pass sound data between your applications and your hardware, directing sounds coming from ALSA to various output destinations, such as your computer speakers or headphones. That’s why it’s commonly referred to as a sound server.
Configuring Linux sound services with ALSA | TechRepublic
https://www.techrepublic.com/article/configuring-linux-sound-services-with-alsa/
When ALSA first runs, all audio channels are set to mute by the mixer. This means that you have to adjust the volume level before you hear any sound. Almost all …
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