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

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0answers
21 views

Reason for interrupt in device driver

In my Audio driver I have Interrupt handlers for Download audio i.e., Audio playback and Upload i.e., Audio Record Sometimes when music is playing smoothly I am getting interrupt because of which i ...
2
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1answer
43 views

Mapping metadata with avconv does not work

The way I understand man avconv (version 9.16-6:9.16-0ubuntu0.14.04.1), the following command should convert input.ogg to output.mp3 and carry over metadata: avconv -i input.ogg -map_metadata 0 ...
1
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1answer
52 views

Send sound output to application and speaker

I'm using my Ubuntu 14.04 LTS Laptop toplay music at a party. I'm using Mixxx and is performs very well for that task. Now I'd like to add some light effects and plan to use Qlcplus for that. So I ...
0
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1answer
46 views

Is there a way to check the losslessness of a FLAC file in Linux?

Let me explain my question with greater detail: I know FLAC is a lossless audio format with respect to the original file; this is, any piece of audio encoded with FLAC will be preserved completely. ...
23
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5answers
17k views

How can I play a sound when script execution is ready?

I am executing every now and then some python scripts which take quite long to execute. I execute them like this: $ time python MyScript.py How can I play a sound as soon as the execution of the ...
5
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1answer
259 views

Using OGG/Vorbis, is there a way to continue to record to an existing audio file?

I am using Vorbis/ogg to record audio (using arecord and then pipping to oggenc). I have downloaded oggvideotools, which gave me oggCat, which will let me join two previously recorded audio files into ...
3
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4answers
2k views

Sound Problems with pulseaudio

The overall question that my whole problem is kind of based on is regarding sound in linux. Should I be using alsa or pulse or what? I'm using pulse at the moment and this is my problem: I was in the ...
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1answer
118 views

Audio CD source plugin for .wav files . Linux

I have a CD which contains a number of .wav files. When I try to open one I get: The playback of this movie requires a Audio CD source plugin which is not installed. Can someone please sent me ...
27
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5answers
9k views

How do I split a flac with a cue?

I've got a full album flac, and a cue file for it. How can I split this into a flac per track. I'm a KDE user, so I would prefer a KDE/QT way, I would like to see command line and other gui answer's ...
0
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0answers
681 views

No audio codecs on Fedora 21

I've been trying to listen to music in Fedora 21 but unfortunately I cannot. Here is what I tried: yum update yum install gstreamer gstreamer-plugins-good gstreamer-plugins-bad ...
4
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1answer
50 views

Make a copy of the audio output into a file

How to get the sound that I can hear in my headphones into a file or into a variable in my C/C++ program? I'd like something like the framebuffer for images. My main goal is sending sound to another ...
5
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2answers
1k 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 ...
3
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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 ...
3
votes
1answer
44 views

How to stop gnome from muting my music?

I use ArchLinux, and I recently installed Spotify which is working fine, except for one thing: Every time any program triggers a system sound, the player volume is automatically muted in the mixer. ...
0
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0answers
67 views

Sound is messed up when using GNU/Linux and headphones - (chanels seem mixed)

When I use headphones under Linux Mint sound doesn't seem right. (Music/effects are usually ok but voices tend to be extremely quiet.) I think channels might be mixed or something. Headphones work ...
36
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1answer
3k views

redirect sound (microphone) via ssh, how to telephone via ssh?

How can I redirect the microphone of one computer to listen to it on another computer via ssh? Which is the right device or which is the right command line? Some years ago it was easy and fun to ...
0
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0answers
32 views

Sound not working in my Ubuntu desktop after the sudden power cut

i googled in many articles but does't fix this problem i tried this but does't help me sudo apt-get remove --purge alsa-base pulseaudio sudo apt-get install alsa-base ...
1
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1answer
59 views

Why most apps try to use OSS if /dev/dsp is present?

So why most applications apparently try to use OSS if /dev/dsp is present on a system where more advanced audio servers (ALSA or PulseAudio) are also available? I experience this after installing ...
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0answers
178 views

No sound in arch linux with xfce4

I have installed Arch Linux with Xfce4, I installed alsa-firmware, utils and plugins. I haven't installed PulseAudio. I have no sounds in my laptop at all :/ I have unmuted in alsamixer my speakers. ...
2
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2answers
404 views

How can I automatically silence my computer at night?

I would like to set my Ubuntu computer such that I can't hear any audio between 9:59pm and 8:00am. How can I do that?
1
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1answer
77 views

Pulseaudio complains about a lack of “org.bluez” and does not play any sound. How to fix?

My pulseaudio (5.0) on arch (Linux 3.17.2-1-ARCH) does not play any sound. When running the daemon explicitly as pulseaudio -vvvv --log-target=stderr, I get the error message GetManagedObjects() ...
0
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1answer
78 views

Why can I not split a .wv file?

I'm a Fedora 20 user and am trying to split a .wv file into separate .flac files. I used this command: cuebreakpoints file.cue | shnsplit -o flac file.wv but get the following output: 56: syntax ...
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0answers
32 views

Hissing at high sound levels

There is a hissing sound starts when I crank up the volume to 3/4 of the way (nothing is playing). I booted in Windows 7 and there is no such thing happening there. Is my sound setup wrong? (I use ...
6
votes
1answer
373 views

Realtek audio issues on OpenBSD 5.2

I am running OpenBSD/amd64 5.2 stable on a new machine, using a gigabyte motherboard with a realtek alc898 audio chipset. When I try to play any audio (sources include mpd, aucat, and cat > ...
1
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1answer
64 views

How to add ffmpeg/avconv command to Nemo actions?

I would like to have a command like this one ffmpeg -i video.mp4 -vn -acodec copy audio.m4a into a Nemo action (context menu). But that would mean using variables instead of real names of files. ...
5
votes
5answers
1k views

recording audio from web-based audio player using ALSA loop device

I am trying to save voicemail messages from Verizon Fios phone in best quality possible. The voicemail messages are available online, but for playing only (Java based player), no saving. Officially, ...
0
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1answer
84 views

Set maximum volume in Ubuntu/Gnome

I have the following issue with my volume settings (Ubuntu 12.04, 3.2.0-49-generic, Gnome 3, Lenovo X220): When I set the volume to maximum using the hardware volume keys, I get to "100%" in the Audio ...
0
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1answer
107 views

Command to extract audio from video without conversion

I know that flv and mp4 files contain aac audio, while avivideo usually mp3 audio streams. What command (avconv, ffmpeg) would extract the audio without transcoding it?
2
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0answers
60 views

Recording loopback doesn't work with alsa

I want to record a sound from speakers, not a microphone in my Linux desktop. I'm using Centos 7. I searched this subject and found this thread but it only partially works. I edited my .asoundrc ...
5
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1answer
69 views

sound in firefox via ssh -X

I have a headless debian box with speakers. Suppose I'm at my laptop and I do $ ssh headless -X $ audacious then audacious' window pops up on my laptop's screen. If I open a file then it ...
1
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1answer
57 views

JACK can't play ardour along with any other media

I recently downloaded Ardour2, and it appears that JACK cannot run Ardour along with any other media (Rhythmbox, YouTube, Pandora, etc.). The symptoms are as follows: If Ardour is the first thing I ...
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0answers
76 views

How to display audio visualization in VLC while playing video?

I've tried enabling all of the entries in Audio → Visualizations, but they don't show up. Disabling the video track didn't help either. Running VLC 2.1.5 Rincewind on Awesome WM.
5
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3answers
10k views

How I can record stream radio in Linux?

How can I record a radio stream in Linux like the screamer in Windows? Does anyone have any idea or suggestion?
4
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2answers
3k views

Set default sound card in Pulse Audio

I have two soundcards on my systems and pulseaudio always picks the wrong one. How do I set up the default soundcard in the pulse audio preferences?
0
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0answers
43 views

Using PulseAudio to receive RTP audio stream

I'm trying to set up simple communication between my Ubuntu distro and my Rasbian distro on the raspberry pi. I'm more concerned about the rPi side of this project. I've been looking around the ...
1
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0answers
38 views

real time kernel / low latency comes from the vanilla source

Does the vanilla source provide real time / low latency functionality ?
2
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0answers
5k 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
0answers
64 views

Is there simple applet mixer for pulseaudio

With new openSUSE 13.2 I find huge problem with sound -- with ALSA I lost the line out, and besides the sound was too quiet in general (today max out, is yesterday half). With help of pulseaudio ...
2
votes
0answers
41 views

Gnome screenshot: turn off camera sound *without* admin rights

Is there a way to disable the gnome screenshot camera sound, with needed admin access? There's an answer here, that involves moving a file from somewhere in /usr/... How can I disable the shutter ...
0
votes
1answer
35 views

Restarting all sound services and their configure settings

I am working on OpenSuse 12.3, to get sound in here I have to go the yast settings and reinstall the sound card interface to get the sound working. I noticed that , sometimes it is enough to remove ...
4
votes
1answer
230 views

Why can I not split a .ape file?

I would like to split a .ape album into individual tracks in .flac format using a .cue sheet. For this I followed a tutorial I found. In short I pass this command to the terminal: cuebreakpoints ...
2
votes
0answers
28 views

PC speaker device missing

I've just connected a small internal PC speaker to my motherboard. The beep command is producing sounds correctly. The pcspkr is loaded but there is no /dev/pcsp, so I cannot send audio to it. How ...
1
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1answer
82 views

I can't find my soundcard using lspci; does that mean it's not linux's fault?

Pretty straightforward question, and according to this diagram it would seem the answer is yes. My previous sound card stopped working (ie. stopped appearing when I ran lspci) so I bought a 2nd hand ...
3
votes
4answers
163 views

Convenient way to name files in Linux

I'm a beginner in Linux and want to learn to do things properly in this environment. Since the beginning I've noticed that a lot of people involved in Linux (like tutorials and guides) tend to name ...
5
votes
0answers
818 views

Debian systems seems to recognize speakers but not the headphones for Lenovo laptops

First of All, I know there are lot of questions out there on same topic but still I could not figure out the solution. Being a average system level programmer (beginner in kernel programming) I would ...
1
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0answers
20 views

How do I direct my audio to a bluetooth device?

I have successfully paired my "headset" (actually its a speaker) with KDE. Now where can I go to tell it to send audio to the speaker. My multimedia settings don't seem to list the device as an ...
4
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0answers
148 views

Why does music still loop, when my PC freezes? [closed]

Unfortunately it happens rather regularly, that some i/o job or some other activity clogs all the cpu power on my rather old linux machine and leaves me with a frozen desktop, where not even the mouse ...
1
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0answers
108 views

Why don't I hear audio playing from my CentOS 6.5 Vagrant box?

I want to play a wave file from my CentOS 6.5 Vagrant box using aplay and of course I want to hear the sound. This is what I do: > aplay sine.wav Playing WAVE 'sine.wav' : Signed 16 bit Little ...
1
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1answer
966 views

Is there an easy way to switch playback soundcards?

I recently purchased the roccat kulo headset which comes with a nice USB soundcard, completely functional under linux :). Howsoever I now struggle to easily siwtch between my laptops integrated ...
1
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0answers
77 views

Change audio volume when headphones are plugged in KDE

I am working on Debian 7 with KDE Version 4.8.4. I want the volume to be reduced automatically when I plug my headphones, I know it is not a problem with my computer (at least directly) because it ...