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How to reset PulseAudio and ALSA on Ubuntu …
https://www.mind-overflow.net/post/how-to-reset-pulseaudio-and-alsa-on-ubuntu/
As long as your audio configuration and settings were working when you installed Ubuntu, and the malfunctioning state is caused by your misconfiguration and/or fault, restoring the audio driver to default state might actually be helpful. First of all, completely purge and remove your pulseaudio and alsa packages by running:
What is the relation between ALSA and PulseAudio sound ...
https://askubuntu.com/questions/581128/what-is-the-relation-between-alsa-and-pulseaudio-sound-architecture
ALSA is unable by itself to be used by multiple applications, so PulseAudio provides this functionality among others. Summarized: ALSA - dealing with the hardware, basically owning it PulseAudio - a software proxy providing additional featues (mixing, equalizer) between your application and the ALSA/OSS subsystem
What is PulseAudio Ubuntu? - frameboxxindore.com
https://frameboxxindore.com/linux/what-is-pulseaudio-ubuntu.html
Ubuntu uses both ALSA, and Pulseaudio for controlling sound input and output. Do I need Pulseaudio? If you want to be able to play audio from two sources at once, ever, for any reason, you need multiplexing. … That’s where PulseAudio comes in, doing the multiplexing in software, regardless of your sound card / driver situation.
How to Remove PulseAudio & use ALSA in Ubuntu Linux?
https://www.hecticgeek.com/how-to-remove-pulseaudio-use-alsa-ubuntu-linux/
1. First let’s remove PulseAudio from your Ubuntu OS. I don’t remember since when Ubuntu used to come installed it by default, but for the recent versions such as: 12.04 Precise Pangolin, 11.10 Oneiric Ocelot, 11.04 Natty Narwhal, 10.10 and 10.04 the below command should remove it. sudo apt-get autoremove pulseaudio 2.
PulseAudio - Ubuntu Wiki
https://wiki.ubuntu.com/PulseAudio
Because Lubuntu 16.04 does not use pulseaudio, it can be useful in determining whether an audio issue is caused by pulseaudio, the ALSA driver, or another program. If the issue still occurs in a Lubuntu environment, pulseaudio is probably not causing it. Note: Modern Lubuntu does use pulseaudio. Static, Underruns
How to Use PulseAudio to Manage Sounds on Ubuntu 18.04
https://linuxhint.com/pulse_audio_sounds_ubuntu/
Ubuntu 18.04 LTS uses ALSA for sound management by default. You can easily replace it with PulseAudio sound server. PulseAudio is available in the official package repository. So it’s easy to install. You can install PulseAudio with the following command: $ sudo apt install pulseaudio Now press y and then press <Enter>.
Noob’s Guide to Linux Audio: ALSA, OSS, and Pulse Audio ...
https://linuxhint.com/guide_linux_audio/
PulseAudio If you don’t remember the last time you interacted with ALSA when changing your audio settings, that’s probably because the user-facing layer of the Linux audio system in most modern distributions is called PulseAudio.
Linux の Audio 機能をコマンドラインで設定 - Qiita
https://qiita.com/propella/items/4699eda71cd742cba8d3
ALSA と PluseAudio の関係. 歴史的な理由からか、Linux の音声入出力は PulseAudio と ALSA の二階建てになっている。ALSA は個々のサウンドカードを担当するのだが、一つのサウンドカードには一つのアプリしかアクセス出来ない。
Ubuntu – Pulseaudio/ALSA/Kodi audio passthrough on 20.04 ...
https://itectec.com/ubuntu/ubuntu-pulseaudio-alsa-kodi-audio-passthrough-on-20-04/
Ubuntu – Pulseaudio/ALSA/Kodi audio passthrough on 20.04 alsa hdmi kodi pulseaudio sound I am using an Intel NUC linked to a Marantz audio-video-receiver via HDMI, which is then linked to my TV via HDMI also. I am running Kodi in order to use this setup as a media player.
Audio/Alsamixer - Ubuntu Wiki
https://wiki.ubuntu.com/Audio/Alsamixer
Audio/Alsamixer - Ubuntu Wiki PulseAudio controls underlying ALSA-level volume controls. To change the ALSA-level volume controls directly, you can do the following: Open a terminal. (The quickest way is the Ctrl-Alt-T shortcut.) Enter "alsamixer" and press the Enter key. You will now see a user interface.
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