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

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2
votes
0answers
244 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
660 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
520 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 ...
1
vote
1answer
2k 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
0answers
834 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
652 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 ...
4
votes
0answers
145 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
384 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
594 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 ...
1
vote
1answer
1k 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 ...
4
votes
3answers
2k 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
1answer
2k 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 ...
1
vote
0answers
340 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
107 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?
1
vote
1answer
3k 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 ...
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
920 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 ...
6
votes
1answer
4k views

Can someone diagnose this JACK error message?

OK. I start JACK without starting the JACK server. I get: 23:09:22.730 Patchbay deactivated. 23:09:22.765 Statistics reset. Cannot connect to server socket err = No such file or directory Cannot ...
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 ...
2
votes
1answer
653 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 ...
1
vote
1answer
525 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 ...
3
votes
1answer
1k views

Issues with ardour and jackd

I'm trying to play with ardour. When I started it up, it complained that jackd isn't running, so I ran jackd -d alsa, which displayed: jackdmp 1.9.6 Copyright 2001-2005 Paul Davis and others. ...
8
votes
1answer
8k 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 ...
5
votes
1answer
976 views

Is the Zalman ZM-RSSC 5.1 USB Sound Card supported in Linux?

And to what extent does this card have support in Linux?
2
votes
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 ...
1
vote
1answer
1k views

What app can I use to change sound levels in GNOME 3 (fallback)?

With GNOME 2, I use my the volume control applet to change loudness levels. It doesn't load on GNOME 3 (fallback) applet, so I wonder what other UI can I use for this, preferably a GNOME one.
6
votes
3answers
21k 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
1k 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: ...
1
vote
1answer
529 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 ...
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?
2
votes
0answers
213 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 ...
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 ...
2
votes
1answer
360 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)?
0
votes
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 ...
1
vote
0answers
804 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
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.
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 ...
2
votes
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?
4
votes
1answer
919 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
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 ...
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.
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......
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 ...
4
votes
2answers
7k views

Flash using wrong audio output with Pulseaudio

I'm using Arch Linux x86_64 with Gnome and PulseAudio. I have USB speakers, which work for the sounds in system menus and most other applications. But whenever I play Flash videos, they output their ...
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 ...
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 ...
7
votes
2answers
861 views

How to disable system beep for non-privileged user

How to disable system beep on Linux? I don't have superuser powers so I cannot recompile kernel/unload module.
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 ...
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 ...
5
votes
2answers
370 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 ...