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

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1
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1answer
215 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
475 views

Record audio from multiple devices with ALSA and Pulseaudio

I want to record audio from multiple input devices using ALSA and Pulseaudio. More precisely, I want to play UltraStar Deluxe. It is a game using SDL. As far as I can tell, it supports ALSA only. ...
6
votes
1answer
307 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
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0answers
6 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.
0
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1answer
616 views

My Ubuntu 14.04 LTS doesn't have sound

I installed Ubuntu 14.04 on VMware workstation version 10.0.0 on my Windows 7 machine. After installing I figured out that it doesn't have any sound so I checked the sound settings. All items seem to ...
1
vote
1answer
216 views

Nvidia HDMI audio not visible on system

I recently installed Arch Linux on my pc. I'm using a Nvidia GTX 660 Ti connected to a receiver over HDMI. I can't get audio to work over this HDMI connection. Next to my video card I have an onboard ...
4
votes
5answers
1k views

recording audio from web-based audio player using ALSA loop device

I am trying to save voicemail messages from Verizon Fios phone in best quality possible. The voicemail messages are available online, but for playing only (Java based player), no saving. Officially, ...
1
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0answers
329 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
73 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 ...
1
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0answers
61 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 ...
2
votes
1answer
116 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
489 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
93 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
616 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 ...
1
vote
0answers
245 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 ...
0
votes
1answer
128 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?
2
votes
0answers
362 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 ...
0
votes
0answers
83 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
49 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
130 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 ...
0
votes
0answers
196 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
1answer
221 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
99 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 ...
1
vote
0answers
33 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
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0answers
130 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
98 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 ...
0
votes
1answer
66 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
2answers
86 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 ...
1
vote
0answers
176 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 ...
1
vote
2answers
100 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 ...
34
votes
1answer
2k 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 ...
1
vote
2answers
2k 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
84 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. ...
0
votes
0answers
369 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 ...
0
votes
2answers
491 views

How do I capture audio from interactive webpages using VLC?

I'm trying to capture an audio video feed (screen-cast) from my web browser and all screen-casting options I tried have the same issue: No sound is captured Platform I'm using a near default ...
7
votes
3answers
3k views

Microphone - static background noise suppression on Linux

My soundcard is Realtek ALC 892. On Windows 7 I use official Realtek drivers, on Linux I use PulseAudio (on Ubuntu 13.10). On both Windows and Linux, when I enable microphone boost +30db (required ...
1
vote
1answer
27 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
84 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
147 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 ...
1
vote
1answer
352 views

No on-board sound on Dell Optiplex SX-280 post Linux Mint Petra Install

Not sure this fits in here.. We recently installed Linux Mint Petra on this small-form-factor dell desktop. The weird thing is, the sound does not work on board, but works on a speaker connected to ...
3
votes
0answers
515 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 ...
2
votes
1answer
83 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 ...
5
votes
1answer
4k views

How do I configure PulseAudio for 7.1 Surround Sound over HDMI?

I have my machine connected over HDMI to a receiver. But when I try to use more than two channels with PulseAudio, I only get two. pacmd list cards shows the card, but does not show an HDMI profile ...
4
votes
0answers
95 views

Auto-switching PulseAudio profiles based on input(s) channel count

I'm running audio over HDMI to my receiver, which has a full 7.1 setup connected to it. However, most of the stuff that I listen to has far fewer channels—some is mono, most is stereo, a bit is 5.1. ...
2
votes
1answer
170 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
1answer
175 views

KDE: temporarily changing sound system

A little time ago, I reported a bug related to Phonon/pulseaudio. For debugging purposes I was told to disable pulseaudio so phonon can use the hardware directly. So I searched about how to disable ...
2
votes
1answer
462 views

Disable ATI HDMI sound device - Fedora with PulseAudio

I want to disable the ATI HDMI sound device. I have nothing connected to it and for some reason, although it isn't the default sound device, it sometimes kicks in and grabs my sound, leaving the ...
1
vote
1answer
272 views

motherboard beep

I need help. I am using a Debian machine, ARK-3360F, and I need to make it beep like it does when it starts-up. Unfortunately, there is not any other speaker than this on the machine, so the below ...
2
votes
1answer
2k views

Live noise cancellation of microphone audio with JACK, ALSA, Audacity?

Audacity has a very nice noise cancellation filter. Is it possible, using JACK with ALSA, to pipe live audio through Audacity's noise cancellation filter?
0
votes
0answers
26 views

avconv with negative audio quality value

Is it possible to set the -q:a parameter to a negative value? For example, the value of -1 is a valid quality level for the Vorbis codec.