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

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2
votes
0answers
161 views

Audio quality issues with mpd

I have been using mpd for a long time now and absolutely love it. However, I recently added a few video files to the mpd database. Now I understand mpd won't play the video files, I don't want it to. ...
3
votes
1answer
384 views

How can I make Debian with KDE louder?

I am running KDE in Debian Testing and I just noticed that the system is really quiet. This is my office laptop, so to be honest I turned the sound on for the first time since I got it 2 years ago. ...
12
votes
2answers
331 views

Possible to configure Login TTY over Audio device (Morse code or similar)?

One of the most miserable aspects of my day job is the need to occasionally investigate problems with machines scattered in remote locations all over the world that don't have network access to the ...
2
votes
1answer
519 views

Sound not working in Debian except in google chrome and test utilities

Yesterday, I had Archlinux on my Dell Latitude E6520 and the sound was working perfectly fine (I even had the loud beep I couldn't get rid of). Today, I installed Debian and alsa. The first surprise ...
3
votes
2answers
20k views

Getting sound working on Linux mint 13 Mate

I have just installed linux mint 13 and I haven't used linux before so I apologise upfront if this question seems basic. I am unable to hear any form of audio on file which I try to play in any ...
1
vote
2answers
180 views

Open-Source Audio Playlist 'Standard'

I know there are quite a few types of audio/music playlists out in the wild. Are there any that are specifically approved as FLOSS? That is, are there are that are particularly encouraged by the ...
1
vote
3answers
9k views

How do I enable sound in Fedora 17?

I did a minimal install of Fedora 17 some months ago and only until today did I try playing some audio with it only to find out that sound is not working. How do I get the sound to work on Fedora 17? ...
2
votes
4answers
1k views

system volume is changed when vlc volume is increased over 100%

When I increase my vlc sound more than 100% and after stoping or pausing vlc if I use clementine to play music the volume is same as vlc, i.e, more than 100% but in the indicator it shows whatever the ...
5
votes
1answer
248 views

How do I get sound to work outside lightdm

If for whatever reason I sudo stop lightdm running on mint and just use a simple xinit session with mutter, is there some way I can get sound to work? Whenever I do that, it seems there's no sound.
3
votes
0answers
364 views

Using Creative Sound Blaster on Ubuntu Server

I just got a Creative Sound Blaster for playing audio wirelessly. I connected it to a virtual version of Ubuntu desktop and just had to go into the sound settings and switch it to the USB and the ...
2
votes
1answer
2k views

ubuntu usb sound card sometimes recognized and sometimes not at boot

I have a linux ubuntu 12.04 server machine which works with an usb sound card. When rebooting the machine, sometimes the usb sound card is recognized and sometimes not, I cannot figure out a reason ...
5
votes
3answers
1k views

Disable KDE system sounds

How to disable KDE system sounds? I mean all sounds on startup, on dialog box popup, on error and so on, without turning off the actual media sound. I use KDE 4.7.4
2
votes
4answers
3k views

mp3 extraction with avconv or ffmpeg doesn't work properly anymore

Before upgrade to the latest Ubuntu I used the following command to extract mp3 from an avi file: $ for x in *.avi; do ffmpeg -vol 100 -ab 160k -ar 44100 -i "$x" "`basename "$x" .avi`.mp3"; done ...
2
votes
1answer
415 views

Web browser hooked pulseaudio sound, how to release?

It seems that Chrome (and its Flash component) has grabbed all the audio on the machine for itself, leaving no sound for any other applications. I am running KDE with PulseAudio. Is there a way in ...
3
votes
2answers
438 views

Tmux makes a sound when I launch it, how could I disable that?

When I launch tmux in the terminal, is causes my Linux Mint to play a sound in the speakers. The sound is a Linux Mint system sound. Perhaps it's the "alert" sound, but I cannot identify it by name. ...
1
vote
0answers
134 views

To which audio format can I convert aac lost-free with ffmpeg?

Since I did not manage to get the audio work with ffmpeg -i video.mp4 -acodec copy -vcodec copy out.avi I'm searching for an audio format to which I can convert aac lost-free. Does such an ...
0
votes
0answers
365 views

ffmpeg: problems when copying the audio

When I run this ffmpeg -i video.mp4 -codec copy video.avi I get a broken audio: a crackling like a stuck LP. The input-audio is aac When I re-encode the audio like this ffmpeg -i video.mp4 -codec:v:0 ...
3
votes
2answers
762 views

Where can I find the Linux driver for headphones in the kernel tree?

I have headphones with three buttons on them which allow me to control my music player with my phone. I want to write a driver for my headphones to make it control my music player on my pc (Ubuntu ...
2
votes
4answers
764 views

Pipe system sound to another computer

I have no speakers in my PC (Cent-OS 5.5) but there is a stereo speaker connected to the computer next to my computer (also Cent-OS 5.5). Both computers are networked. Is there any way to pipe my ...
3
votes
0answers
130 views

Restricting sound control

I need to restrict users so that they cannot output sound from built-in speakers. They should plug their headphones to hear any sound. They should be able to control headphone volume level, but not ...
0
votes
0answers
288 views

Macbook pro 8,1 skype audio

I cannot seem to get skype to use my microphone on this macbook pro 8,1. I've used alsamixer to set all speaker/mic setting to unmute with max volume, nothing. (although when I set the "digital" ...
2
votes
2answers
402 views

How to burn mp3 files to an audio CD under Scientific-Linux 6.1?

It should be an easy thing.. but a strange thing happened when I tried in Brasero: "XXX.mpg is not suitable for audio or video media" I had the same problem with K3B. What package did I forget to ...
3
votes
1answer
569 views

Pulseaudio, Phonon, KDE and forwarding sound to headset

Some days ago I bought headet (Jabra BT2045) and I want to use it in Skype voicechat and for example to forward to it another sound streams from my KDE. I've successfully paired and setup as headset ...
5
votes
2answers
561 views

How to encode huge FLAC files into MP3 and other files like AAC?

My problem is very long recordings, longer than supported by WAV. I'm talking about continuous recordings of around eight hours in length. Now, I do most of my recording using sox into FLAC, which ...
1
vote
1answer
652 views

Is it possible to redirect system-beeps to the normal audio?

When I run this script I don't here any beeps - I suppose it is because there is no speaker attached to the mainboard. Is there a way to redirect this beeps to the "normal" audio? #!/usr/bin/env perl ...
3
votes
3answers
725 views

command line audio with mpg123 - how to save position in audio and begin from that location next time?

I am contemplating using mpg123 as an audiobook player. I can't find any other good audiobook players for Linux, and I think mpg123 may be my best option. My audiobooks are organized by directories ...
3
votes
2answers
856 views

Volume on Linux much lower than on Windows

I dualboot Slackware64 and Windows 7. The volume under Linux when maxed seems a lot lower than when it is maxed on Windows. My soundcard chip is Realtek ALC662. Volume is set to 100% for PCM and ...
3
votes
1answer
320 views

How to grab the audio channel from an MP4 video file into a separate audio file?

Having an MPEG4 (MP4 container, H264 AVC video, AAC audio) video clip downloaded from YouTube, how to separate its audio channel into an independent audio (without de&re-compressing the audio ...
4
votes
1answer
534 views

Finding the current speaker volume (signal strength)

I'm trying to create a widget for awesome wm that controls and monitors volume. Getting and setting the speaker volume is easy in ALSA and PulseAudio, but how about getting the actual signal ...
1
vote
0answers
279 views

No sound with fresh Kubuntu install

I've just taken the plunge and installed Kubuntu as my main desktop env but I can't get the sound to work, and was wondering if anyone would be so kind as to help me work out what the problem is. I ...
3
votes
1answer
78 views

How do I prevent a program from playing sound?

I have a program which does not have an option to disable sound. I could mute the computer globally, but there are other programs for which I do want sound. Is there any way to locally disable sound? ...
0
votes
1answer
954 views

Activating Audio System in Arch Linux

I wanted to get the audio system going on Arch Linux, and I followed the very concise instruction I found on Archlinux.org, but it didn't help. Has anyone done this personally, therefore knowing the ...
3
votes
1answer
1k views

Command line audio - piping for simultaneous playback and recording

I am trying to generate sound data, convert it and store it to a WAV format. I'm almost there - except I'd like to hear the generated sound "while" it is being "recorded". This command line just ...
5
votes
1answer
793 views

playing a sound/notification in finch over ssh on my local machine

So I have finch, a command line chat client (think pidgin) running on a remote machine that I ssh into. finch has notification sounds and can run a command when certain events occur, letting you pass ...
5
votes
1answer
480 views

ALSA dummy device - how to configure?

I am working on an audio stream between two virtual servers. For that, I have set up a dummy soundcard (as the vservers don't have a hw card) using modprobe snd-dummy. That seems to work fine - I am ...
18
votes
3answers
16k views

Set volume from terminal

Is it possible to set the audio volume using the terminal?, instead of clicking the speaker icon in the topbar, the reason I want need to do this is because my keyboard does not have a volume ...
1
vote
1answer
260 views

Have working headphone controller under Linux?

I have headphones with a controller (+/- volume, play/pause). They work when using an iPad. My question is if it's possible to make it work under Fedora 16 (using GNOME 3)? I assume some drivers ...
1
vote
1answer
864 views

No sound in USB headphones using fedora 16

The volume control buttons on the usb headphone work, they can increment or decrement the system sound. However the headphone have no sound. How to make it work? kernel 3.2, pusleaudio is used by ...
3
votes
3answers
832 views

FreeBSD 9 Sound Driver

I installed FreeBSD 9. I'm trying to make a sound to work but no luck. My Sound Card: Realtek ALC898 Can someone help me how to make it to work (I'm creating custom kernel)? Base on FreeBSD ...
6
votes
1answer
5k views

How to check why sound over HDMI doesn't work

I installed Gentoo clean on my system, except my /home but I deleted all hidden folders that might have an impact on sound (.mplayer .pulse* .config .esd_auth and more) and with a fresh user adduser ...
2
votes
3answers
4k views

How do I display the name of my audio card driver from the command line in Lubuntu 11.10?

I am running Lubuntu 11.10 and I want to display my Audio / Sound Card Driver from the command line.
0
votes
1answer
778 views

G722 in gstreamer is not available or its need to be activated? How do i do that?

Gstreamer how to use G.722 enc and dec? Is this not available or missing in there implementation? $ gst-inspect | grep ffmpeg ffmpeg: ffaudioresample: FFMPEG Audio resampling element ffmpeg: ...
3
votes
1answer
2k views

Sound volume control does not work in Ubuntu

My sound volume control does not work when I'm logged in with my regular user, though the sound works correctly. What's weirder is that the sound control works when I'm logged in as guest. With my ...
4
votes
1answer
477 views

Linux support for RTP-MIDI?

I have been spoiled by the ease with which I can connect my iPad up to MIDI applications on my Macbook using the native support for midi-over-the-network (apparently RTP-MIDI) provided by the CoreMIDI ...
3
votes
2answers
1k views

Recording audio output

I've been following these instructions for recording the output of a program I wrote (that uses rtaudio to synthesize music) ...
0
votes
2answers
490 views

What Linux distro is good for music and well supported?

I'm pretty disappointed with Ubuntu. It's never been easy to sort out the mess that is Alsa / Jack / whatever and have it work with Pd, Supercollider, Ardour, Lillypad. I've upgraded to the latest ...
1
vote
2answers
2k views

pulseaudio suddenly stopped working?

I am using arch linux and i was using pulseaudio suddenly today pulseaudio stopped working and no sound is coming in both my speaker and headphone. I can see pulseaudio is running properly and I am ...
1
vote
1answer
407 views

How to demux audio and know what type it is?

How to demuxed audio and know what type it is? When muxing an audio into a video, ffmpeg, mencoder, etc require to know what the audio's encoding is. The encoder typically uses the file name's ...
1
vote
1answer
625 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
190 views

Music Server for WLAN-Speakers

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 ...