Questions about audio hardware and software in Linux and other UNIX operating systems.

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1answer
1k views

gnome 3 system sounds not working

On my System (Debian Wheezy x64, Gnome 3) I don't have any system sounds. Other audio is working well. When I go to settings > Audio > Sounds (hope it is called like this in english) as normal user, ...
2
votes
0answers
214 views

Music Server for WLAN-Speakers [closed]

There are several systems with WLAN-Speakers for sale. Most of them consist of several Boxes with WLAN-Recievers and a WLAN-Router/Storage-Device to spread the sound information. The WLAN-Speakers ...
2
votes
1answer
194 views

How do I run Gnome 3 sound control from KDE?

Skype is using pulse audio, which is part of Gnome and the main place I found to configure microphones was in the standard Gnome sound control. How can I configure the microphones from KDE?
0
votes
1answer
128 views

Applying an IO redirection&audio device example in Fedora

Here is an example I saw in a webpage which uses IO redirection to make the audio device make sound. less sound.wav > /dev/audio But I cannot do it in Fedora. It outputs the input data format is ...
3
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0answers
6k views

No sound with Mint 12 and Realtek ALC892

Installed Mint 11 last week and I've got no sound. I've read around, went through the trouble shooters. Poked and prodded. Still no sound. It worked right out of the install with this hard ware in ...
2
votes
1answer
365 views

Extract pitch information from audio file

Is there a command-line utility which would allow me to extract pitch information from an audio file and store it in a numerical form (i.e. as a list of comma-separated values)?
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0answers
1k views

How to make front audio jack work again after waking up from suspend?

Sometimes, after I wake up from suspend (using pm-suspend), the front audio jack stops working (no sound) after I wake up my laptop. Only after a full reboot I get it to work again. My laptop is an ...
3
votes
2answers
2k views

How do I know if my microphone is mute or unmute when I have more than one microphone?

How do I find out if my microphone is muted or unmuted, when I have more than one microphone such as Motherboard, USB and HDMI? 1) I can't find it with this: $ cat /proc/asound/cards 0 [PCH ...
4
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2answers
473 views

Ubuntu 11.10 with gnome shell - suspend wake up sound

I would like to be able to enable some sound file to play whenever I suspend and wake up my netbook (MSI Wind u100) but I can't found a way to do this in gnome shell. I'm using PinguyOS 11.10, which ...
5
votes
3answers
11k views

What and how is the encoding of a raw (headerless) audio file?

I have done this: me@riverbrain:~/sgf$ echo "test" | text2wave -otype raw -F 16000 >> test.raw which produced a headerless audio file. The wonderful thing about this file is that it can be ...
17
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5answers
9k views

Detecting headphone connection/disconnection in Linux

I am trying to detect a signal when a headphone is connected or disconnected from the system. What is the best way to do this? If there is a special board with drivers, that will be my preferred way....
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0answers
810 views

Why is this ALSA configuration file preventing aplay and arecord from listing PCM devices?

In my embedded system I have this configuration file in /etc/asound.conf: pcm_slave.sl2 { pcm "hw:0,0" rate 48000 channels 2 format S16_LE } pcm.rate_convert { ...
3
votes
1answer
1k views

How to remotely turn “up” sounds?

So I have to Skype with someone, but he is not...well let's just say not a "geek", so I have to log in via SSH to his Fedora machine, and turn on sound [because he can't hear me when using Skype, but ...
4
votes
1answer
1k views

VLC surround to stereo problem

I noticed a problem with certain video files where speech volume component is just too low. I googled a bit and it seems that the problem is that it tries to play surround sound on stereo speakers and ...
3
votes
3answers
3k views

Speakers make popping sound when on battery power. What should I do?

I am running Linux Mint 11 on my notebook, which is basically a variation of Ubuntu. I have been hearing a popping noise in the speakers ever since I installed the OS, but just now realizing that the ...
2
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1answer
180 views

How can the log-in screen sound of linux mint 11 be changed?

How can I customize the sound that occurs when the log-in screen pops up on linux mint 11?
3
votes
1answer
549 views

Audio file as an audio input device

I want to play an audio file over VoIP in order that people can listen to it with a phone call. One way to do this would be to set up the audio file as an audio device where the audio starts playing ...
5
votes
1answer
2k views

Samson Meteor Mic under Linux/ALSA [closed]

Has anybody gotten a Samson Meteor Mic working under Linux/ALSA? I tried to google it but I found no mention of Samson Meteor under Linux at all. Kernel/ALSA/Audacity see the device. Unfortunately I ...
3
votes
1answer
930 views

FLAC correctness using MD5 placed in STREAMINFO

I know from [Sources], that FLAC computes CRC and MD5. What I am afraid that flac --test only does CRC test - as stated in man flac : same as -d except no decoded file is written . How to check flac ...
5
votes
2answers
2k views

How can I create a direct 8khz audio pipe in Ubuntu?

I'm interested in creating musical programs like these: http://www.youtube.com/watch?v=GtQdIYUtAHg&feature=player_embedded Essentially these programs just generate sequences of integers, which (...
4
votes
3answers
10k views

amixer - How to change recording channel?

So fat, I am setting up microphone settings : $ amixer set 'Rear Mic' 90% mute cap $ amixer set 'Rear Mic Boost' 80% But, after some sys. update, my default recoding chanell changed to 'Front Mic' :...
4
votes
2answers
1k views

No sound on Ubuntu 11.04

I have a problem on my notebook (MSI E-620) running Ubuntu Natty Narwhal x86. When I installed it there was just output, when I plugged my headphones in. The speakers in my notebook do not play ...
1
vote
1answer
186 views

Audio stopped working in Xine in Debian

Recently sound stopped working in all the Xine-based applications. I get the error: the audio device is unavailable. I am using latest Debian Testing with KDE. I haven't been fiddling with the ...
27
votes
2answers
51k views

How to use command line to change volume?

I am trying to control the volume using my programming script. How can I do the following in Fedora 15, Ubuntu linux? Mute/ Unmute Volume up and volume down Note: Please note that I use a web USB ...
3
votes
2answers
1k views

Is there a linux distro that uses Jack audio server all the time?

By this I mean a distro that does not use pulse audio at all. So when you are runing programs like miro or mumbles you do not lose audio playback becuase Jack took over the audio stack.
2
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1answer
1k views

Debian linux installation cannot play sound

I am trying to get my Linux installation to play musix. I have debian linux. The contents of /etc/debian_version are: 6.0.2 I cannot seem to get any sound to play from my speakers and after looking ...
2
votes
2answers
1k views

Streaming all local audio to Icecast Server

Does anyone know if it's possible to stream all audio on a computer to a local icecast server. I was able to stream individual files using ices2 but not all audio generated from my computer. Any ...
2
votes
1answer
2k views

How to turn microphone jack to headphones jack?

I've picked out my headphones jack. Can i change my microphone jack to headphones jack only by soundsystem configuration? My soundcard is Intel82801I (ICH9 Family) HD.
4
votes
1answer
693 views

Why is vlc not syncing audio and video correctly?

max@linux-vwzy:~> vlc --version VLC media player 1.1.11 The Luggage (revision exported) VLC version 1.1.11 The Luggage (exported) Compiled by abuild on messiah (Aug 17 2011 15:23:16) Compiler: gcc ...
6
votes
2answers
1k views

Automatic Volume settings?

When I watch a Movie on my Desktop PC - Fedora 14 - In many times the Movie is too quiet to hear, but sometimes....it's too loud - Because there's suddenly music, or an explosion, that's really loud......
5
votes
2answers
1k views

Output sound by writing to /dev/dsp

I know that it is possible to write arbitrary data into /dev/dsp and a noise will come up from the speakers. But whatever data I pass to this file the noise is the same. I wonder is it possible to ...
2
votes
1answer
666 views

Renaming alsa controls

Is it possible to rename alsa controls? My front panel is controlled using "Speaker" and my the back plugs are "PCM". Since this isn't very descriptive I would like to rename them to something more ...
2
votes
1answer
6k views

Play RTMP stream from command-line

I've managed to get flvstreamer to read a radio station's RTMP stream with the options --live -r [url], and it outputs what I guess is the raw audio data + stream info to stdout. Can I make it play ...
4
votes
1answer
926 views

How to get Debian's volume control working with Pulse

I finally configured Pulse to work with every application, however using the volume control on my keyboard still controls the default ALSA selected device. How do I change it so it adjusts the current ...
4
votes
1answer
4k views

How to disable the beep sound system-wide

If I want to disable beep sounds from stuff like bash, I add this line to "/etc/inputrc": set bell-style none Sadly, this doesn't work for some other events like GDM start-up and shut down. I ...
3
votes
1answer
2k views

How to get recordmydesktop to record application's audio on Debian/Squeeze?

I'm on an amd64 Debian/Squeeze install on an Intel DX58SO motherboard. I want to use recordmydesktop to record application's audiovisual output. It's important any audio generated by the ...
1
vote
1answer
78 views

Shift every mode by a constant factor of an audio signal

Is there any tool for linux which can shift every frequency of the spectrum of a sound signal by a constant factor and output the resulting sound? Especially I am looking for a way to simulate the ...
4
votes
1answer
294 views

Audio frequency spectrum of a video at a given time

Is there a simple way to get the audio frequency spectrum at a given time of a video? My motivation is the following: I was wondering if it is possible to "measure" the Doppler shift from YouTube ...
4
votes
3answers
1k views

Mathematica makes no sound under Ubuntu 11.04

After waiting for days for my license I now got the opportunity to install Wolfram Mathematica 8 at home. However, neither the Play nor the Speak functions are doing anything as it seems that ...
11
votes
2answers
5k views

How to record my full screen with audio?

If I want to record my desktop, I use: ffmpeg -f x11grab -s `xdpyinfo | grep -i dimensions: | sed 's/[^0-9]*pixels.*(.*).*//' | sed 's/[^0-9x]*//'` -r 25 -i :0.0 -sameq valami.avi But it doesn't ...
5
votes
2answers
372 views

Is it possible to record audio directly to a computer's optical drive?

There's a question over at audio.SE at the moment and I thought it may attract some answers here. I asked the user and he's happy to have it posted here to see if anyone has some ideas. Here it is ...
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votes
1answer
1k views

MP3 to Audio converter under Fedora

I have a folder that has ~10 mp3 files. How can I convert them to "Audio format"? - I have an older CD player that doesn't handles MP3 files, only "Audio".... I need a simple, GUI app for it (extra ...
8
votes
1answer
2k views

Changing default audio device in Pulseaudio

I would like to use HDMI on my graphic card for audio output. ALSA shows it as a card with 4 devices and I can get sound through one of them (the other three are different channels, perhaps? I have ...
1
vote
1answer
3k views

Fedora 15 - Audio Configuration

I have a Macbook Pro 6,1 that I have dual booting OSX and now Fedora 15. I'm working on getting the audio working. In System Settings > Sound > Output there are two options for audio devices: High ...
30
votes
4answers
23k views

Generating random noise for fun in /dev/snd/

Recently I have been exploring the enchanted /dev folder. I want to write some random data to an audio device in order to generate some noise. I am using ALSA. So I instruct cat to pipe some random ...
2
votes
1answer
1k views

I don't have a /dev/dsa yet I have audio!

I was hacking around and hoping to direct some random data using pipes at /dev/dsa as follows cat random.file > /dev/dsa ...to get some random noise, but I can't manage to find an audio device....
8
votes
1answer
5k views

Sound input issue with skype, selecting a microphone?

Ok, Skype yet again has issues with sound. This time, it is unable to record audio. The system is using PulseAudio and I am using a web cam as a microphone. Actually, I tried another web cam and ...
2
votes
0answers
331 views

System beep not working in TigerVNC

I just upgraded my Gentoo Linux computer (where I'm running Xvnc from TigerVNC 1.0.90 (1.1 beta 1) compiled myself against xorg-server 1.9.5), and I'm no longer getting any bell sounds, just silence. ...
2
votes
0answers
316 views

Mouse click sound on fedora

I have a USB touch screen system with Fedora 14 installed. I couldn't get to play sound on any mouse click (on touch). Is there anyway to play a click sound, either by changing some configuration or ...
13
votes
4answers
7k views

Can I setup a loopback audio device?

If I can send audio to the output devices, then I can record the same audio as a wave. With filesystems, you can just setup a loopback filesystem and write binary data on a file instead of a device. ...