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

learn more… | top users | synonyms (1)

3
votes
1answer
1k views

How do I resolve the garbled sound in Debian?

I just recently installed Debian 7 Wheezy with KDE and once I turn on the computer, the start-up sound is garbled. The closest description I can think of is that the sound coming out is somehow ...
2
votes
1answer
85 views

How to use OSLEC with Alsa as default, not with Pulseaudio or other thirdparty package involved?

Oslec Echo canceller I have seen some packages used OSLEC and there echo cancle was very well. So for a test simulation, how could i install the OSLEC only with Alsa (i do not use PulseAudio at all, ...
1
vote
1answer
492 views

How to turn off internal laptop speakers when external speakers / headphones are connected in Elementary OS?

In the eOS settings I see no option to make internal speakers turn off when the external jack is connected.
1
vote
1answer
255 views

Archlinux mute sound in browser only

Is there a way how to mute all sounds in browser only? I need it to be done from command line. I'm currently using alsa mixer for mute (command amixer set Master toggle), but I can't find any way how ...
2
votes
1answer
710 views

Alsa & JACK - card and device names (different naming conventions)

I am a bit confused about audio device names. If I use command aplay -l i get the list of all audio devices on my system: **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], ...
2
votes
2answers
156 views

Desktop audio falls behind when recording microphone + desktop audio + screen using ffmpeg

I have put together this script for recording the microphone, the desktop audio and the screen using ffmpeg: DATE=`which date` RESO=2560x1440 FPS=30 PRESET=ultrafast DIRECTORY=$HOME/Video/ ...
1
vote
0answers
99 views

Switching output sink/moving audio streams - but some apps still use the old sink!

I'd like to easily switch between a usb-connected amplifier/dac and my onboard audio. I'm using a fully updated Arch Linux x64 with PulseAudio 4.0-2. Another thread on this board is about switching ...
4
votes
3answers
1k views

Extract audio from video in Linux with a GUI program?

When I use Thunar I like adding to custom actions command lines like those presented here, here and here to extract audio from videos. I mean without transcoding/altering the sound, just putting it ...
3
votes
1answer
209 views

How can I disable the shutter sound of gnome-screenshot?

After a recent update of my LMDE, the gnome-screenshot tool started making an annoying camera shutter noise every time a screenshot is taken. This is both annoying and startling (especially if you ...
2
votes
1answer
835 views

Disable Cinnamon volume applet's sound when changing volume

I recently updated my Linux Mint Debian Edition to update pack 7. Since then, every time I change the volume by scrolling on the volume applet that is on my panel, an annoying beep is played. Similar ...
1
vote
0answers
77 views

Reassigning input connectors for HDA ATI SB (Intel HDA / Realtek ALC883) soundcard

My soundcard has three input connectors at the back: green, orange and black. Usually I have them connected with my front, read and subwoofer speakers. Sometimes though I want to reassign them to be ...
2
votes
2answers
1k views

Alsa - how can i tell my default audio output is card 2 and device 0, not hdmi?

how can i tell my system default sound output is card 2 and device 0 not card 2 device 3 or 7 or 1? I did this but no sound. $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Device ...
0
votes
1answer
346 views

Alsaaudio module, recording for specific amount of time

The below code records the audio for some time (I don't know how much) How to calculate the total time of its recording? For example, if I want to record for just one minute then how would I limit ...
0
votes
1answer
439 views

Fedora 19 using KDE - Phonon cannot switch to hdmi audio device 7

I have an issue with HDMI sound. I recently upgraded to Fedora 19 (clean install) but this issue exsists on F18 too. I have Intel DQ67SW motherboard with integrated audio/video and ASUS-NVidia GT220 ...
3
votes
0answers
577 views

Why does skype not pick up my microphone?

I've got skype running (32 bit mode) on Slackware64 — the sound is fine but my mic is not able to be detected. KMIX shows that my mic is enabled, and I can hear myself when I test it. Some ...
1
vote
1answer
254 views

Pulseaudio over network - change output on-the-fly

I successfully configured PulseAudio server and client to send audio over network. It uses direct connection: http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Network/#index1h2 ...
2
votes
1answer
158 views

Why doesn't my udev rule work?

I created a file /etc/udev/rules.d/60.alsa.rules with the following content: KERNEL=="0000:00:1b.0", SUBSYSTEM=="pci", ATTR{label}=="Realtek High Definition Audio Device", ATTR{vendor}=="0x8086", ...
1
vote
1answer
337 views

Separate speakers and headphones output

I have a PC with builtin soundcard, and it has one output for the speakers (behind the computer) and one for the headphones (on the front side). When I play something, the sound goes to both outputs. ...
1
vote
0answers
44 views

How can I stub out an audio interface in jack?

I've got a Tascam US-800 8-in/4-out audio interface that I use to record into Ardour. The setup is great, but I like to do my mastering and mixdowns elsewhere and I always have to drag around the ...
3
votes
2answers
3k views

Ideas how to get my usb audio interface to work with Linux?

PulseAudio does not appear to recognize the Focusrite Scarlett 6i6 USB audio interface. The 2i2, however, is properly recognized and it works as expected. I can't seem to get the 6i6 to work on the ...
0
votes
1answer
62 views

What program reads and executes /usr/share/alsa/alsa.conf and related scripts?

I can't find any kind of daemon application for modern ALSA. I wonder, what process or kernel thread reads /usr/share/alsa/alsa.conf and other configuration files under /usr/share/alsa, when it reads ...
3
votes
1answer
842 views

how to use avconv to record streaming audio (how to define sources)?

I have never used avconv before. I've been reading the manual and asking questions on various forums and IRC for the last couple weeks but I have not found an answer yet. (This question is one part of ...
1
vote
1answer
5k views

ALSA: how to temporarily change the output device

I want to do a simplest thing possible in ALSA: to have USB-headphones produce sound instead of internal speaker of my tablet. I don't want to change config files such as asound.rc or alsa.conf or ...
1
vote
1answer
651 views

audio recording - record two sources simultaneously, merge into a single 2-track recording

How can I record two audio sources at the same time and create a file where one source is the left channel and the other source is the right channel of a lossless stereo audio recording? My distro ...
1
vote
0answers
1k views

Problems with sound in Linux Mint 15 on video

Problem: I think you'll enjoy this fun problem. I set-up a dev/media server. Steps to reproduce: Start up any video file (with Banshee or VLC or xfce player - doesn't matter) -- all is well. Sound ...
1
vote
1answer
630 views

record audio on Linux - capture both sides of a VoIP conversation

I want to use Audacity (or similar) to record audio for podcasting. The podcasts will be interviews conducted via voice-over-IP (SIP) telephone. I came across an excellent tutorial here: ...
2
votes
1answer
2k views

Using FFMPEG to stream to Twitch.tv with desktop audio?

I've been trying for the last hour or so to stream to Twitch.tv with desktop audio in the stream. Currently, I'm able to use this to get a video to display on Twitch: #! /bin/bash INRES="1280x800" ...
1
vote
1answer
266 views

Applications grabing ALSA exlusively

So, my second question about linux audio on the site. The previous one generated quite a lot introductory information. I have ALSA and PulseAudio installed. Before installing PulseAudio, no audio ...
2
votes
1answer
303 views

Alsaequal volume gain, Pre-Amp like

I use alsaequal for equalize my audio, hitherto ok, but all know that after equalizer the volume is low, some equalizers have a control called "Pre-AMP" that solve this problem, but in Alsaequal ...
3
votes
3answers
7k 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?
1
vote
1answer
392 views

How to preserve the logind session in Arch Linux?

I got audio working in Arch Linux without problems yesterday, but at some point it stopped working again: $ alsamixer cannot open mixer: No such file or directory $ vlc foo.mp4 ... [0x7f1388006be8] ...
5
votes
1answer
381 views

Linux sound: how does it work and why do I need to chain 3 architectures to use JACK?

Linux newbie: How do I use Jack? How does Linux sound work? I have an app that is trying to output sound through ALSA or JACK, but I am not hearing anything. Here are a couple of articles, from ...
1
vote
0answers
147 views

Cannot find Audio Hardware for my Workstation

Audio is NOT working in HP workstation xw 4600. I cannot find any hardware present at System-> Preferences -> Sound -> Hardware (Tab) The command lspci -v shows following output of Audio ...
10
votes
2answers
5k views

Add album-art cover to mp3/ogg file from command-line in batch mode?

I am looking for a software in Linux, that will add the album-art/cover to each of the selected files in batch-mode. The album art is a jpg/png stored in my computer. It will be awesome if it can ...
0
votes
1answer
202 views

Choppy sound when recording sound from my microphone

I've just installed a fresh copy of Linux Mint 15 and so far everything is working ok, but sound from my mic. While talking on skype or just recording the sound produced is very very choppy. I tried ...
1
vote
0answers
101 views

No microphone input - VIZIO CT15-A5 and 12.04 LTS (64)

I have the VIZIO CT15-A5 and 12.04 LTS (64) is running smoothly .. Only one issue.. I cannot record sound or use Skype due to lack of mic input. I have tried turning up the sound using the alsa ...
2
votes
0answers
500 views

Linux Mint SPDIF Out Not Working

I'm running Linux Mint 15 (Cinnamon) on a computer with a GA-Z68X-UD3H-B3 motherboard. The only issue that I have had is the sound. The analog outs work fine, but I cannot get any sound from the ...
1
vote
0answers
106 views

No USB 04b4:0307 microphone input after Ubuntu 10.04

I was very happily using VOIP SIP with Ubuntu 10.04. Since I upgraded to 12.04, not only has Ekiga become very buggy and inconvenient, but, the subject matter of this question: the microphone of my ...
1
vote
0answers
355 views

Sound doesn't work in x, but does in virtual terminal

I've just installed Fedora 19, bringing over my home directory. I've disabled graphical boot, instead I get dumped to a virtual terminal. I use xmonad instead of gnome3. weird phenomenon #1 In a ...
2
votes
1answer
3k views

how to pipe audio output to mic input

I've looked all over the internet for a clean way to reroute the audio output of my computer (i.e. what I'd hear from the speaker) to my microphone's input. Possibly, I'd like to do this at low level ...
3
votes
2answers
1k views

Stereo “tone-generator” for linux?

Is there something like a stereo (separate left-and right-channel) tone-generator for Linux? Where you can set volume and tone/pitch for each channel, and preferably also set the wave-form (sine, ...
0
votes
0answers
204 views

Jitsi crashes sound every time

No matter which version of the software I download and install from jitsi.org, running Jitsi causes the sound on my OpenSUSE 12.3 machine to be replaced by a low hissing noise. This persists even if I ...
1
vote
0answers
68 views

Xubuntu Media plays at triple+ speed

Out of the blue today, I just booted my PC and Raspberry Pi like normal, with my PC running Xubuntu and my RPI running Raspbian, and on my PC at least ALL media is running at triple or higher speed. ...
1
vote
1answer
88 views

Mute sound from specific virtual display

I'm using Linux, precisely Mint 13 Maya, which is based on Ubuntu Precise. I was wondering if there was any way to mute sound coming from other virtual displays, or to only have sound playing from ...
2
votes
0answers
237 views

How to send HDMI sound to OTHER HDMI port?

I am running XBMC on a Debian Testing system on my HTPC. I want to switch between my monitor for browsing and my tv for XBMC. This is no problem. But the sound only seems to reach my television when ...
2
votes
3answers
369 views

Fastest way to convert a large amount of FLACs to MP3s

I'm looking for something that can take advantage of my GPU or at the very least, multiple cores of my CPU to convert a few terabytes of FLAC to mp3 (VBR v0) very quickly while preserving all of the ...
2
votes
1answer
771 views

Is there a command line tool for analyzing audio frequency

I am planning to analyze audio via linux command line. There are a lot of analyzers out there which have a graphical interface, but since I want to make an automated input/output of this information I ...
0
votes
1answer
92 views

Making a Icecast Playlist from the Console

I got HP 6G RAM laptop that use as a home server, and a netbook that i use as my everyday console. I recently installed icecast server on the server as playing audio files on the netbook halts my ...
1
vote
2answers
172 views

adding additional tracks using sox and the command line

I'm trying to add additional tracks using sox using the command line Example: I have several different stereo tracks a drum track, vocal track, effects track, etc. Can I add additional stereo tracks ...
5
votes
2answers
261 views

Can I query which processes (if any) are currently accessing the microphone?

I'm running Debian (technically Raspbian), trying to get a Star-Trek style voice-command system. I've got it mostly up and running, but in the interests of privacy and all that jazz, I don't want my ...