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

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2
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0answers
82 views

Debian: pulseaudio sink volumes syncing?

Running Debian jessie with pulseaudio, sometimes I would use pavucontrol to adjust volumes of different applications at varying levels. Then when I would forget about it and adjust the volume using ...
2
votes
0answers
518 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. SMplayer plays audio just fine, or doesn't play at all (I've observed the latter ...
2
votes
1answer
104 views

Play a sound file slower or faster

How can you play a sound slower or faster? That would be useful for listening carefully one audio passage or to listen fast forward to find a concrete passage. Is there something with the play sox ...
0
votes
0answers
470 views

Elementary OS dual sound output problem

Good afternoon guys. I recently installed Elementary OS on HP desktop-pc. Things appears to be working just fine, except that when I plug-in my headphones, I can still hear the sound coming from my ...
1
vote
1answer
76 views

Play last few seconds of mp3

Is there any way to play last N seconds of an mp3 file on bash commandline?
1
vote
1answer
244 views

Bluetooth headset profile not working with recent kernel

I have a Plantronics 590 bluetooth headset (the type probably does not matter, but I have no alternative to test). Using the old 3.02 I was able to use this via pulseaudio. With the current ...
2
votes
1answer
110 views

What is needed for USB a device to appear under Sound in Ubuntu control panel?

I have a device that combines two audio interfaces and one HID interface. It enumerates correctly, as lsusb -D shows. Also, a trace with wireshark shows no errors - all descriptors are exchanged ...
3
votes
2answers
2k 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) ...
6
votes
1answer
506 views

Ssh audio redirection

I have DVB-T USB dongle plugged into my Linux server (GUI-less). It works correctly, but I want to stream TV programs from server to my PC. For this I use Kaffeine that way: ssh -X -p 666 -i ...
0
votes
0answers
8 views

XJacker and PulseAudio connection

Is it possible to connect the XJacker Sound Amplifier (v2) to PulseAudio on Ubuntu? Or is it just XBOX only.
11
votes
4answers
5k views

Detecting headphone connection/disconnection in Linux

I am trying to detect a signal when a headphone is connected or disconnected from the system. What is the best way to do this? If there is a special board with drivers, that will be my preferred ...
7
votes
1answer
4k 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 ...
0
votes
1answer
601 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
0answers
367 views

Audio (speaker) jack detection with debian

How to find out whether speaker jack is connected or not in my motherboard Tried out some reference from : Detecting headphone connection/disconnection in Linux pasted my amixer output.Need ...
0
votes
1answer
98 views

How can I record the sound from multible sources with gtk-recordMyDesktop?

I am having problems with sound when I am trying to capture a video. It captures my sound from my mic, but it dosent record the game sounds, skype sounds, vlc sounds, firefox sounds and everything ...
2
votes
2answers
2k 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 ...
1
vote
0answers
85 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
388 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
147 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 ...
2
votes
2answers
680 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
0answers
394 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 ...
3
votes
1answer
208 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 ...
1
vote
1answer
107 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 ...
4
votes
3answers
951 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 ...
0
votes
1answer
206 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
84 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
57 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
231 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
242 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 ...
2
votes
2answers
128 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 ...
11
votes
2answers
7k 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
37 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
154 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 ...
3
votes
2answers
118 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 ...
7
votes
2answers
2k 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
79 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
64 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 ...
8
votes
2answers
209 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? $ ...
0
votes
1answer
684 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
2answers
146 views

free video editing software for Linux with audio tracks auto matching

I have a few video files which basically cover the same action from different perspectives. I would like to merge them into one "split-screen" kind of video (two or four panes). The problem is videos ...
1
vote
2answers
3k views

How to remote Linux desktop with audio support

I have a Debian PC (Server) and I would like to remote this machine from one client (Windows, Ubuntu,..) and be able to hear the sound from the server. I tried some tools (Radmin, RealVNC, but I ...
2
votes
1answer
136 views

Setting maximum volume

I usually work in a WM (i.e., i3wm) and use alsamixer to adjust sound volume. The recent Linux installation on a Dell t5500 machine gives a very loud sound when set the maximum volume in alsamixer. ...
6
votes
2answers
726 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 ...
0
votes
0answers
460 views

Auto-detect headphone jack

I am using ALSA on Arch Linux on a MacBook Air 5,2 (mid 2012). This is my first time using alsa by itself (without any tools that come with gnome), so I may have not configured something in order to ...
4
votes
4answers
2k views

How to “reencode” mp3 files

I have a fair number of mp3 files which I created using audiohijack pro on a mac. Now I no longer have a mac and am using them on my linux systems. Unfortunately the program I use (rhythmbox) to ...
1
vote
1answer
31 views

Utility to tag regions of audio files

For example, say I have a recording with lots of noise and people speaking, I'd like to tag areas where people are speaking with a 1, and by default everywhere else is 0. Then save this file ...
0
votes
1answer
100 views

Digital audio between Intel Atom E640 and ADAU1445

Background information: I have a ADAU1445 DSP from Analog Devices connected to multiple audio sources through the Serial Input pairs. One of these sources is an Intel Atom E640 processor running ...
0
votes
1answer
195 views

Does WINE support .wma playback through MCI?

This application (zip file) extracts .wma file but fails to play it under WINE. I have installed Windows Media Player 10 and it is able to play this embedded audio file under WINE, but it could use ...
3
votes
0answers
555 views

How to set up AMD Cayman/Antilles HDMI Audio (Radeon HD 6900 series)?

I've got an AMD Radeon HD 6950 card: $ lspci | grep AMD 03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cayman PRO [Radeon HD 6950] 03:00.1 Audio device: Advanced Micro ...
4
votes
3answers
804 views

avconv creates creates files whose duration is incorrect

I am attempting to create a variable rate mp3 from a flac using the following command: avconv -i t.flac -id3v2_version 3 -vn -acodec libmp3lame -aq 0 t.mp3 avconv and mediainfo both list the ...