Questions about audio hardware and software in Linux and other UNIX operating systems.
3
votes
1answer
561 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 ...
5
votes
2answers
381 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 ...
4
votes
1answer
456 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
174 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
2k 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
392 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 ...
2
votes
1answer
1k 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 ...
2
votes
1answer
1k 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 ...
4
votes
1answer
492 views
Saving alsa settings
After a new update, there is no sound by default in my Debian Squeeze box until running alsactl init, but whenever rebooting the computer I have to run the command again to gain sound.
How can I ...
1
vote
1answer
72 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
186 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
1answer
718 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 ...
10
votes
2answers
3k 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
207 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 ...
-1
votes
1answer
545 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 ...
5
votes
1answer
888 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 ...
9
votes
3answers
5k 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
681 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 ...
5
votes
1answer
2k 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 ...
1
vote
0answers
304 views
alsa and 5.1 surround through three front stereo jacks on the Dell Studio XPS 13
I know this is not a tech support forum, but I am not etting an answer from alsa people and have tried much, if not everything.
I can upload the alsa-info output if needed, but here is the info ...
1
vote
0answers
216 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
192 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 ...
10
votes
4answers
2k 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.
...
1
vote
1answer
862 views
Splitting WavPack files when the .cue file and .wv file have different names?
If a directory contains an album encoded as one large .wv file and a .cue file, splitting the entire album into individual .flac tracks is a simple task:
$ cuebreakpoints foo.cue | shnsplit -o flac ...
1
vote
1answer
913 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.
1
vote
2answers
2k views
“lsmod |grep audio” doesn't return anything?
I am running Debian Squeeze. I installed and removed Gnome3 and reinstalled Gnome2.x (epic fail and stupidity) and in the process I have lost audio, lspci returns following
# lspci | grep Audio
...
0
votes
0answers
375 views
Ubuntu no sound [closed]
I just installed Ubuntu 10.10 and I've no sound. I tried few method suggested in ubuntu forums like reinstall alsa but nothing works? My PC is old and my audio card is Realtek's AC'97. Any suggestions ...
2
votes
0answers
659 views
No sound in webex player in wine
I am using Fedora Core 10. I have installed wine with both wine-alsa and wine-oss sound drivers. I am able to hear test sounds by running winecfg, but when I run the webex player there is no sound, ...
9
votes
4answers
2k 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 ...
7
votes
2answers
422 views
No sound when attached to docking station
I have been using Linux and Ubuntu only since the last two months on my (2006) Sony Vaio VGN A617S laptop which is going pretty well on Ubuntu 10.10. When installing Ubuntu audio did get installed ...
3
votes
1answer
966 views
5.1 speakers on soundblaster x-fi 'extreme audio'
The rear and center channels on my 5.1 speakers don't work.
I've checked the connections a few time, and turned up volume sliders in alsamixer
“System information” in alsamixer correctly identifies ...
1
vote
1answer
679 views
Reading audio stream data from internet radio and pushing it to temporary file
I'm in the process of setting up an audio processor on my remotely hosted CentOS box. The audio processor itself is command line based, and after speaking with the author he explained to me that it ...
4
votes
5answers
942 views
Free/Open Source secure Skype alternative on Fedora & OpenBSD?
Criteria:
Audio/video calls
Encrypt the whole traffic [with a good encryption]
ported to windows 7 too
runs on Fedora, OpenBSD
Does anybody know a good alternative?
3
votes
1answer
388 views
Ubuntu 10.0 sound muted automatically on ThinkPad
My laptop is ThinkPad T61, with Ubuntu 10.10 installed. The sound works all well, until I plugged the Creative XiFi Go USB sound card. After I reboot my computer, the internal speaker is muted ...
4
votes
3answers
454 views
Is there a good command line tool for converting to and from FLAC audio format?
Ideally, I want to convert from MP3 to FLAC and back. I also need to be able to script this.
12
votes
4answers
6k 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 ...
6
votes
2answers
761 views
Volume up/down function keys limited to gnome-volume-control “Unamplified 100%” level
Using GUI gnome-volume-control:
Sound Preferences
----------------------------------------------------------------------------
Output Volume: [--------------+ ]
...
2
votes
1answer
3k views
ffmpeg and libmp3lame produces bad audio quality?
when I get a flash video from YouTube, why is the quality of the audio much worse than the origin video on YouTube? When I downloaded the flash movie, I convert it to avi like this:
ffmpeg -i ...
3
votes
2answers
3k 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 ...
1
vote
1answer
383 views
Do the “play” utility in Linux really have a “delay” to stop it's process with really small files?
I have a wav file, Duration: 00:00:00.17 (less than a second!)
When I call play to execute it, play executes it fine, but my terminal becomes idle for ~4s until play process is done.
Is this by ...
2
votes
1answer
758 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.
...
2
votes
2answers
566 views
Flash running in Chromium and FF at once, why no sound in the second browser?
I work as a student assistant Linux admin and I just packaged up Adobe's "Square" plugin to get 64bit FF running flash pretty well (first time I've seen it work this well), but there's one little ...
1
vote
2answers
248 views
How come I suddenly don't have any audio?
Just a few minutes ago my sound was working, and then it stopped! I suspect it was caused by me checking out some video editors. How do I go about troubleshooting this?
What I've so far tried:
I ...
1
vote
2answers
97 views
Is there a tool that lets me exaggerate audio levels?
It often happens that a movie I'm watching has audio loudness levels set too low. Since I use a typical laptop, I can't just go raise the volume level of my speakers.
I've raised all knobs offered by ...
6
votes
1answer
2k 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 ...
7
votes
1answer
252 views
Prevent mplayer from changing system volume
When I change the volume in mplayer it also changes for other applications. How can I configure mplayer to only change its own volume? Or is this a problem with the rest of the audio stack? I am using ...
5
votes
2answers
645 views
Microphone always picks up sound and routes it to speakers
I've started running into a kind of strange problem on my laptop, and Google hasn't proved to be very helpful so far.
Essentially, at seemingly random times, my microphone will start sending output ...
1
vote
1answer
217 views
No sound from cli apps or from zsnes
Some programs don't have sound, in particular ZSNES and anything I run from the command line. So my question has two parts:
How can I diagnose this problem? (I'm thinking of a command like lspci ...
12
votes
3answers
9k views
How can I record the sound output with gtk-recordmydesktop?
I am using gtk-recordmydesktop to record the video output to my desktop. However, the videos have no sound. All the tutorials I found regarding this involved getting sound recorded from a microphone, ...
