Questions related to PulseAudio, the default sound server in Ubuntu, which manages all audio devices like internal and external sound cards (and therefore all speakers, microphones, headsets, etc.) through its ALSA backend.

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6
votes
0answers
8k views

How to switch audio output between laptop speakers and docking station, or at least disable jack sense? [closed]

I got an HP 8530w Elitebook laptop which is in a docking station quite often. When it's in the docking station, I'd like to be able to choose if sound comes from my built-in laptop speakers (for ...
11
votes
2answers
13k views

How to change volume of pulseaudio playback-apps / -streams that aren't currently in use?

I can change sound volumes with "gnome-volume-control ". But there are listed only playback-apps / -streams that are currently in use. In "~/.pulse "-directory I found e.g. "*-stream-volumes.tdb" and ...
7
votes
1answer
12k views

How do I stream my microphone via VLC?

I'm sure this is a quick one if you know it but I'm stuck been searching around for a long while now. All AUDIO works mic/Spkers/Skype etc... which is great. What I am trying to do is get the mic to ...
0
votes
1answer
969 views

FA-66 sound card sometimes cuts out and stops working, causing me to restart Jack

I have setup Ubuntu 11.04 to use Jack and PulseAudio just to get sound working. It was a little tough, but I got it to work. Now as I use my computer - like Banshee, Youtube, or VLC - the FA-66 will ...
13
votes
1answer
12k views

How can I apply a LADSPA plugin to a PulseAudio stream?

I want to apply a LADSPA plugin to everything that streams through the default PulseAudio sink. How should I set this up?
3
votes
2answers
2k views

Skype - voice fine, but no notification sounds

I have Skype installed via Software Center on clean copy of Ubuntu 11.04. Skype package version is 2.2.0.25-1maverick1. Voice calls work perfectly fine both ways. But notification sounds do not work ...
2
votes
1answer
356 views

Sound application indicator for Esound is missing after I uninstalled PulseAudio?

I removed PulseAudio as it seemed to be in conflict with Skype and VLC but now the volume indicator applet is gone and the action keys won't turn up nor down the volume. Is there a solution? or Is ...
2
votes
0answers
389 views

Enabling system-wide dynamic range compression [closed]

I need to enable dynamic range compression system wide. I've tried looking around some but couldn't find anything precise on how to set it up. The target system is running Ubuntu Karmic, but ...
10
votes
4answers
7k views

Why can the volume go higher than 100%?

How come the maximum volume on the sound menu isn't actually the maximum volume possible? If I select "Sound Preferences..." and look at the volume slider in the window, it can go quite a bit higher. ...
2
votes
2answers
2k views

Pulse Audio not sending sound to speakers

I've been wrestling with this problem for two days. Since upgrading from 10.10 to 11.04, I can no longer get multichannel (5.1) sound to my speakers. Stereo 2-channel sound was working, but it was ...
4
votes
2answers
797 views

Xine always starts muted [closed]

I'm suffering from the issue that xine is always starting up muted so that I have to manually increase the volume. I tried all options (with Configuration experience level set to maximum). The startup ...
1
vote
3answers
4k views

Ubuntu 11.04 doesn't distinguish between audio outputs?

My PC has two audio 3.5mm audio outputs: back - used for speaker system front - used for headset This is my audio controller: id: multimedia description: Audio device product: N10/ICH 7 ...
0
votes
1answer
171 views

Sound is played in a loop without mouse or keyboard activity [closed]

I have a weird problem with my linux. if I run a mp3-file with the rhythm box or also run a video in youtube that results in that if I do not move my mouse or touch the keyboard for about 3 seconds, ...
4
votes
1answer
1k views

How do I write raw bytes to a sound-device?

In the olden days, you used to be able to open /dev/dsp for reading and writing, now, with PulseAudio this doesn't work anymore. I thought you could do it with padsp, but this code doesn't run: ...
10
votes
1answer
13k views

What user settings control audio access?

Running a regularly updated 10.04 LTS we have a weird issue with access to audio with pulseaudio 0.9.22. Sound device is ATI Technologies Inc SBx00 Azalia (Intel HDA) Login user1 after reboot: sound ...
0
votes
1answer
695 views

Kubuntu 10.4 No Sound Since Latest Update

Yesterday I preformed a standard update routine using KPackageKit. Everything went smooth. However, today I found out there is no sound anymore on my machine. Since I was listening to music yesterday ...
1
vote
3answers
10k views

Adjust PCM volume?

The default sounds levels of master volume 100%, application/stream 100%, are too loud through my headphones. I can adjust applications or the master volume down, but if a new application makes a ...
2
votes
2answers
2k views

Surround Sound and Video Setup

Ok. We're trying (really hard) to port from Windows to Linux (Ubuntu to be exact) Problem is... I just doesn't work as good as a Windows Box... The box is to function as a media centre and all ...
13
votes
1answer
7k views

Is there a way of leveling/compressing the sound system-wide?

As a Laptop user, I'm sure that a lot of people, even the ones using Netbooks would have already gone through this problem. Especially when listening to podcasts, and using it as an example, the sound ...
4
votes
2answers
894 views

Attenuate applications while receiving output from Mumble

This relates to Mumble. The attenuate other applications feature does not work (lowers volume of other applications while someone is talking). I was wondering if there was native feature built into ...
5
votes
5answers
8k views

Why are my speakers working but not my headphones?

I have Ubuntu 10.10 installed on my Asus G50VTX5. Sound works for the speakers but there's no sound from the headphones. Headphones are working fine in other devices.
5
votes
1answer
4k views

How do I setup Audacity and PulseAudio to Record from a line in?

This is pretty confusing to me, even after reading through Audacity and PulseAudio's Wiki and Docs. I know this may be a pretty detailed and long explanation, so thank you in advance for any advice ...
5
votes
3answers
3k views

mpd conflicting with other applications — taking control of pulse?

Simple explanation If mpd is playing and sound attempts to play through another application, x, sound from x will not be output. If sound from another application, x, is playing and mpd then ...
4
votes
2answers
768 views

Strange sound artifacts when using Firefox while music is played

I listen to music using Rhythmbox. Meanwhile I browse web with Firefox. When a page is loading, I switch tabs or I scroll up-down a site (and sometimes randomly), terrible "cracks" are audible, and I ...
10
votes
1answer
18k views

How do I run PulseAudio in a headless server installation?

PulseAudio is the standard audio server in desktop installations. However in a server installation audio services and thus PulseAudio are not provided. How do I install and make use of PulseAudio in ...
9
votes
5answers
54k views

Using microphone input port as headphone output

I have one audio output jack and one audio input jack on my laptop. I want to use it for real time audio mixing, and I need to have another discrete output for headphones that is independent of the ...
1
vote
1answer
1k views

Fix pavucontrol Alsa mixer with creative card

I have been desperately trying to get my creative x-fi soundcard to work with my 10.10 install and I am almost there! I have 1 speaker working and when I open volume control I see that my device is ...
6
votes
2answers
8k views

Setting microphone input volume using the command line?

I have a USB mic I keep plugging into my laptop dock. When I drop into the dock I'd like the mic setup as my current audio input automatically. I do have a "I'm docked" script I run which sets ...
55
votes
4answers
22k views

How do you mute from the command line?

How do you mute the sound system from the command line?
15
votes
3answers
8k views

My sound stopped working today, how can I fix it?

This seems to be a problem with pulseaudio. I was logged in over VNC on my phone and started playing a video this caused X to crash (as sometimes happens). I restarted and suddenly the sound doesn't ...
9
votes
2answers
2k views

How to disable Alert volume from the command line?

There is an option in the Sound Preferences dialog, Sound Effects tab, to toggle Alert volume 'mute'. It works and suffices for my needs to disable the irritating system beep/bell. However, I ...
8
votes
3answers
3k views

Stream audio to mobile device

I'd like to stream the audio from Ubuntu 10.10 to my HTC Desire HD (Android 2.2). I've seen solutions so far for streaming from audio players, but I'd like to stream any audio output from the PC to ...
11
votes
3answers
2k views

Assign programs permanently to different sound-outputs in Pulseaudio?

I want to assign Skype input and output to my USB-headset while the rest of my laptop uses the internal sound-card. This is an easy task with PulseAudio Volume control (pavucontrol). The only problem ...
1
vote
2answers
2k views

How do I use my headphones and microphone?

The headphones and microphone on my Ubuntu 10.10 work fine. But when I start an audio conversation using empathy or pidgin, my computer hangs, the microphone doesn't work, and I can't record anything. ...
3
votes
1answer
2k views

Flash Breaking Pulseaudio?

Since posting this question, it has been revealed that the problem was with mpd — not Flash. Here is the question I posted in an attempt to find a fix. Every time a Flash object with sound (such as a ...
34
votes
9answers
6k views

How to automatically change volume level when un-/plugging headphones?

What I want is the following: When I plug in my headphones, I want the sound to be un-muted and set to a specific volume level. When I unplug my headphones, I want the sound to be muted (or set to ...
6
votes
3answers
6k views

Revert audio configuration to defaults

I messed up the audio on my 10.10 installation. I had a problem of having no sound when plugging in the headphones and following many different solutions for that problem I (de)installed several ...
5
votes
2answers
1k views

How do I control Front and Back volume independently with cloned stereo signal

I have my 7.1 soundcard set to stereo and plugged in two stereo thingies (a. my desktop speakers b. my stereo) to the front respectively rear plug. Now I would like to an easy way to mute/volume ...
5
votes
2answers
4k views

“Waiting for Sound System to respond.” error dialog

I'm having a nasty problem with the Sound Menu on my Ubuntu 10.10 Installation. What happens is that the sound control icon is blocked, and I can't control the master volume. If I try to get to the ...
1
vote
1answer
2k views

Internal microphone does not work

I have an Acer Aspire One D250 with Ubuntu Netbook Edition 10.10. The internal microphone is not working. What can I do to fix this? Audio Device: N10/ICH 7 Family High Definition Audio Controller
5
votes
1answer
743 views

How can I determine what codec is being used? [closed]

This forum comment and this superuser answer suggest that the audio compression contributes to loss of quality. I've noticed that music played over my BT setup sometimes pitch bends in ways I don't ...
8
votes
1answer
2k views

What is the command to know my PulseAudio version?

What is the command to know my PulseAudio version?
9
votes
2answers
2k views

How can I automatically switch to USB headset when plugged in?

Whenever I plugged in my old audio jack headset, sound was immediately diverted from my speakers to the headset speakers, and the microphone was immediately available. When I plug in my new USB ...
15
votes
2answers
2k views

How do I make my volume indicator operate in decibels instead of percentage?

When I want to adjust the volume of anything I'm doing, I find that using the volume controls built into Ubuntu is little but confusion. When the volume is around 100%, dropping it several increments ...
12
votes
4answers
6k views

Realtime noise-removal with PulseAudio?

Is it possible to do realtime noise-removal with PulseAudio, so the sound output that's coming out is smoother?
1
vote
3answers
872 views

How to get non-delayed sound and VOIP working in ETQW?

The sound in Enemy Territory: Quake wars used to work fine before, except that using the VOIP hotkey would crash it outright. Now, after some fiddling, I at first had sound that was delayed by half a ...
2
votes
0answers
620 views

Audio input disappears randomly [closed]

Same question asked in Launchpad and Ubuntu Forums and LinuxQuestions I'm running Lubuntu 10.10 on a HP Compaq nx6325. I use it to digitize tape records - connecting the tape deck's headphone output ...
4
votes
4answers
4k views

No sound after PulseAudio reinstall

I encountered an audio bug and reported it on Launchpad. There I was asked to reinstall PulseAudio. That sounded dangerous, so I tried it on a VirtualBox virtual machine I had lying around. (this VM ...
3
votes
2answers
2k views

How to understand the Audio Subsystem?

I already used a lot of Ubuntu versions, I started with 5.10. But eversince I had issues with the audio subsystem. No matter what hardware, currently I have two computers and both have issues. On my ...
2
votes
2answers
472 views

Rhythmbox sound cuts, cracks when other programs are running

I upgraded to Ubuntu 10.10. When Firefox or my photo album is open the sound in Rhythmbox cracks and cuts like someone scratching a disc with a needle. On its own or with Evolution open the sound is ...