Ask Ubuntu
Ask Ubuntu

Questions tagged [alsa]

The Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system.

The official Wiki is located at: http://www.alsa-project.org/

Have a look at for troubleshooting suggestions.

2564 questions
284
votes
10 answers

Is there another way to restart the sound system if pulseaudio/ALSA don't work?

I was listening to music, and my sound suddenly went dead in all my applications. I'm using Ubuntu 12.04, which uses pulseaudio, so I tried sudo /etc/init.d/pulseaudio restart, but nothing happened. According to lsof | grep pcm, nothing is using the…
Ricardo Altamirano
  • 3,129
196
votes
9 answers

Is there any Sound enhancers/equalizer?

What I am looking for is to have system wide implementation of sound enhancements like bass boosts, echoes, Fidelity, Stereo enhancement and so on. Audio Video players have their own equalizer but they enhance only the audio / video files they are…
user15873
  • 2,063
150
votes
14 answers

Headphone jack not working?

I have a Dell Studio XPS 1647 and headphones do not work (though , internal speakers work like a charm) , I have dual boot Windows 7 and headphones work perfectly fine ... I also tried -adding in options snd-hda-intel model=eapd probe_mask=1…
lexical lemon
  • 2,018
119
votes
7 answers

How do you mute from the command line?

How do you mute the sound system from the command line?
myusuf3
  • 35,659
103
votes
13 answers

How to save AlsaMixer settings

Hello I have tried out the program "EarCandy", now I had/have a lot of problems. At first I did not get any sound and now it is very low volume. PS Earcandy is now deleted from my hard disk. When I open the Alsamixer with: alsamixer I see that the…
jsterr
  • 2,387
90
votes
1 answer

How can I tell if I'm using alsa or pulse-audio by default? (Switching to i3-wm)

I might not be understanding the core concept, in which case correct me if I'm wrong. Ubuntu comes with two different audio rendering servers, pulse and alsa. Is Alsa an intermediary layer to pulse? Essentially I need to know which one I'm…
Nikole
  • 1,135
88
votes
1 answer

What is the relation between ALSA and PulseAudio sound architecture?

Well, this confuses me for a long time. As far as I know, ALSA is a package of many sound card drivers, and PulseAudio is a audio application that operate the sound data like mixing or equalizer. But why there is a control bar called PCM in the…
Kevin Dong
  • 1,135
62
votes
7 answers

No sound output devices listed after upgrade from 21.10 to 22.04

Problem: No sound after upgrade from ubuntu 21.10 to 22.04 (using development release) both built in speakers and hdmi output. Some background: running on ubuntu 21.04, I noticed that my sound was not so great so I did some research for sound and I…
ThdK
  • 731
57
votes
15 answers

PulseAudio fails to set card profile to 'a2dp_sink'. How can I see the logs and figure out whats wrong?

I have currently installed ubuntu 16.04 and a2dp used to work on fresh install, which I'd prefer to leave as a last option. When the pairing is erased from bluetooth settings and is paired again sometimes it manages to be on a2dp profile, but if the…
Juan Lopez
  • 671
50
votes
14 answers

Command to mute and unmute a microphone

During voice / video conversations I would like to mute/unmute the microphone without having to go through all these steps each time: Sound indicator, Sound preferences, Select Input, Mute or unmute the microphone. I'm looking for either: an…
Lucian Adrian Grijincu
  • 7,495
46
votes
5 answers

How to record any internal sound in and out using Ubuntu and Audacity

How cna I record any internal sound like mic in and speaker out from the same PC running Ubuntu, using Audacity or something else? For example under Windows it can be done like this (I want to do something similar): Recording internal sound on…
user25165
43
votes
7 answers

Replacing Pulseaudio with Pipewire in Ubuntu 20.04

Since I installed Ubuntu 20.04 I have been facing problems with my Bluetooth headset microphone not detected by the system. My headset worked perfectly with Windows. Also, I am not able to switch to HFP from AD2P in Ubuntu. So my final thought is to…
1nfern0
  • 2,499
41
votes
3 answers

No sound device detected

I just installed Ubuntu 16.04 LTE on a new Lenovo E470 machine. No sound device is detected, I mean: And similarly, no input device is detected. Some information that may be helpful: aplay -l returns **** List of PLAYBACK Hardware Devices **** card…
Giovanni De Gaetano
  • 1,322
40
votes
9 answers

How to switch between headphones and speakers without unplugging headphones

When I plug in my headphones the audio output device switches to the headphones from my speakers. Rather than plugging/unplugging the headphones all the time, which will eventually wear out my cord/jack I would like to just use a software…
user276318
  • 633
  • 1
  • 5
  • 9
40
votes
3 answers

Equalizer in Ubuntu 18.04

Is there any build in Equalizer in Ubuntu 18.04 or a third party program that works with this version best?
HelloWorld0815
  • 533
1
2 3
…
99 100