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

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2
votes
1answer
398 views

VLC surround to stereo problem

I noticed a problem with certain video files where speech volume component is just too low. I googled a bit and it seems that the problem is that it tries to play surround sound on stereo speakers and ...
1
vote
0answers
5 views

Xfce sound level applet works wrong

I have installed Xfce4 on Debian testing. I'm using ALSA for sound driver. If I decrease volume level by using sound control applet in Xfce panel, there is no problem till "zero level". If I decrease ...
1
vote
1answer
111 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
26 views

Which Linux distro supports h264/avc, aac and mp3 out of the box?

That is, after installing (or live boot) I want to be able to access h264-aac videos and mp3 audio that I have saved, WITHOUT INTERNET connection, that is installing after OS-install from a repo on ...
3
votes
1answer
1k views

volume hot keys in Crunchbang don't work

I've spent 2 hours on this and still can't figure this out. It's driving me insane. Please save my sanity. When I press mute, the pnmixer control in the top right shows that I've pressed mute, but ...
5
votes
1answer
257 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 > ...
0
votes
1answer
254 views

How do I enable sound in this fresh Arch install?

I'm following the Arch Beginner's Guide, here: https://wiki.archlinux.org/index.php/Beginners%27_Guide I have Arch running. Now I'm working on the post-installation instructions, one of the first ...
0
votes
1answer
374 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 ...
1
vote
2answers
318 views

Why does Arch Linux keep Windows headphone mute

I have Windows 7 installed, and headphones work perfectly. Few days ago, I installed Arch Linux along with Win7. This issue appears with gnome/xfce4/openbox. Perhaps it is not related to desktop ...
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
401 views

ffmpeg - Merge two audio sources with x11grab, possible?

Currently I'm running with the following setup. ffmpeg \ -i http://pub1.di.fm:80/di_vocaltrance \ -f x11grab -s 1920x1080 -r 25 -i :0.0 \ -c:v libx264 -preset fast -pix_fmt yuv420p -s 1280x800 \ ...
8
votes
2answers
424 views

USB audio only outputs white noise

I am running OpenBSD/i386 5.1 on a 5 year old laptop. The speakers and headphone port work, but the headphone port is a little loose so I am trying to install an external USB sound card (Fiio E17 USB ...
1
vote
2answers
44 views

Muting and unmuting sound with mutebutton

I'm running the testing branch of debian with codename Jessie and xfce as desktop environment on a Lenovo ThinkPad T410. When I press the mute-button, it mutes pulse-audio and alsa, but when I press ...
1
vote
1answer
207 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], ...
1
vote
0answers
349 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 ...
0
votes
0answers
9 views

How to record sound in buffer using ALSA [migrated]

I'm beginning to learn Linux and ALSA and I was wondering if there is a way to store the sound I record from a microphone directly to the buffer. I read here ...
31
votes
1answer
946 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 ...
4
votes
1answer
849 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 ...
2
votes
1answer
38 views

What is the modern equivalent of reading `/dev/audio`?

Recently my trusty home PC died after 10 years. The ensuing upgrade (from SuSE 10 to OpenSuSE 12.3) was something of a culture shock for me - none of the convenient shortcuts and utilities I had ...
2
votes
1answer
523 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 ...
1
vote
1answer
26 views

how to fix default sound device for a user

when I "play" (with SoX) a .wav file using my own account on Debian it plays fine: jcomeau@aspire:~$ play ~petalumarentals/7077809525.1396808357.711.wav ...
1
vote
0answers
32 views

Bluetooth (A2DP) Audio input device

I use my Ubuntu (13.10) laptop as an A2DP (Bluetooth audio) sink for my Android phones. The music I play on my phones is sent to the laptop and is heard through laptop speakers. Now I'm trying to ...
1
vote
3answers
50 views

how to understand list of soundcards; meaning of MID, HDMI, PCH

Command aplay -l produces a list of "all soundcards and digital audio devices". On my brand-new Fujitsu Esprimo desktop, I get: **** List of PLAYBACK Hardware Devices **** card 0: MID [HDA Intel ...
4
votes
1answer
479 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
2k 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?
7
votes
1answer
262 views

No volume control in Nexuiz fullscreen mode

While playing Nexuiz on my Ubuntu in fullscreen mode the volume control buttons on my laptop don't work at all, externally after minimizing the game increasing/decreasing the sound solves the problem ...
0
votes
2answers
948 views

Alienware M14x - No sound in linux Mint 14 (Nadia)

I have done a fresh install of Linux Mint 14.1 x64 on my Alienware M14x. Everything was working fine after installed. Unfortunately the sound is lost after sometime. Theres no sound when playing video ...
1
vote
1answer
1k 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 ...
6
votes
1answer
1k views

Sending to two bluetooth speakers at once

Is it possible to send the same audio signal to two different Bluetooth speakers at once from a single source? I remember reading somewhere that it's possible to send audio to two different sinks ...
0
votes
1answer
25 views

Generate .asoundrc

Is there any way to generate .asoundrc? I know that by default this file does not exist and system generates one on the go like Xorg does. But is there any way to see how the content will look like?
0
votes
0answers
17 views

Extremely loud crack and mangled sound over S/PDIF using ALSA

Sometimes it seems ALSA on my machine goes completely haywire: Flash audio on Spotify doesn't produce any sound. Whenever I start a video in VLC it plays an extremely loud crack, so loud I'm afraid ...
0
votes
0answers
59 views

My computer beeps while copying files

Whenever I create disk activity on my memory stick, my headphones create very annoying beeps at various notes. It doesn't happen with my in built speakers, and it hasn't happened before. I'm on Ubuntu ...
2
votes
0answers
21 views

Trying to record from the default audio source

I am trying to record the sound output, but this looks more complicated than expected. I expected that arecord -f cd -t wav --max-file-time 3600 --use-strftime %Y/%m/%d/listen-%H-%M-%v.wav would ...
2
votes
1answer
36 views

arecord to record what is playing on speakers

The command arecord foo.wav records from microphone and saves to file foo.wav. Is there a way I can have arecord record what is coming out of speakers instead of recording from microphone? Or perhaps ...
0
votes
0answers
44 views

Delay in playing(recording?) real time raw audio. [OpenWrt, Debian]

I'm developing OpenWrt device which sends audio data to network but I have issues in the early beginning. I'm trying to find which cause delay in playing (or maybe recording, but more probably ...
1
vote
0answers
34 views

Audio cuts in and out after upgrading from Ubuntu 12.10 -> 13.10

So my audio was working perfectly fine (XBMC, VLC, Flash in Chrome, etc) before the upgrade. Now that I've upgraded, I can still play audio, but it plays for a second or two at a time before cutting ...
2
votes
2answers
37 views

How can I run setfacl -m group:group2:rwx /dev/video0 /dev/snd/* on login?

Q: How do I grant permissions to /dev/video* and /dev/snd/* to a second user, user2 when logged in interactively as user1? I have written a wrapper for sudo that clones the XAuthority settings, and ...
7
votes
2answers
2k 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 ...
1
vote
0answers
16 views

How can I send data from sound input to output (e.g. linear input/output)? Preferably with pulseaudio

Need to get data from audio input, make some changes (a pulseaudio module for this conversion is available), and send data for output. How I can make do this? "Redirect" raises questions but I can't ...
1
vote
0answers
25 views

Debian jessie Logitech G35 microphone not working

I'm on Debian jessie with KDE. I have a Logitech G35 headset and even managed to enable surround sound. Now I noticed that the microphone isn't muted. I'm pretty sure that it is not muted and set as ...
2
votes
2answers
47 views

Where do sound drivers live? [closed]

A little while ago I searched for a good driver for my sound card (with surround sound support) and didn't find any. So it seems there is none. I thought I could try (even though I think nothing ...
5
votes
2answers
392 views

Indicate mute/unmute with i3status

Is there a way to indicate if the sound is set to mute or not using i3status? I know how to show the volume (as explained in man i3status), but it doesn't distinguish between mute or just 0% volume.
0
votes
1answer
13 views

Opening ALSA Microphone in two programs?

I'm using a raspberry pi to capture some audio, but I only want it to do it when the noise level goes above a certain level, and then the device will record until two seconds after it falls below that ...
1
vote
0answers
54 views

Sound stutters during moderate disk access?

I'm running Xubuntu 13.10 "Saucy Salamander." It's a pretty recent install. I'm playing music over a bluetooth usb dongle on a home theater system. All of my sound goes through pulseaudio. I've ...
17
votes
8answers
6k 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 ...
1
vote
2answers
29 views

How to autoplay ogg stream at startup of Debian

I am programming a Rasberry to Pi to become a radio player. It is meant to be used to play the local college radio in the student union hangout. INPUT: Power is turn on. OUTPUT: Audio is played ...
8
votes
2answers
184 views

Single key audio capture in Linux (save on key release)

I'd like to run a program that records audio only when the Right Control key is held down. On keyboard release the result would write to disk as, e.g. yy-mm-dd hh:mm.ogg. How might I do that? $ ...
1
vote
1answer
137 views

GStreamer and sample rate conversion

I have a soundcard that is only partially supported in Alsa, i.e. playback is only working in 48 kHz. Most of my audio files are in 44.1 kHz, and I would like to use Exaile as my audio player, as it ...
0
votes
1answer
273 views

Internal Microphone Not Working When Running elementary OS on Galago UltraPro

I am running elementary OS on a Galago UltraPro laptop. Originally, some of the hardware was not working because elementary uses the Ubuntu 12.04 kernel and the Galago UltraPro uses the relatively new ...
1
vote
0answers
40 views

ALSAEQUAL runs, but sliders do not seem to affect audio

I want to have an equalizer that lets me easily adjust sound for listening to music on my laptop with headphones. I'm trying to install ALSAEQUAL since it seems that this is the preferred tool for ...