ALSA (Advanced Linux Sound Architecture ) is an API of audio functions for the linux platform.

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How to share Alsa devices between users?

I lost the ability to share Alsa sound between users even if only one is logged in. According to this guide ConsoleKit integration should be used instead direct ownership of the device. After I ...
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HDAjackRetask: tee: /sys/class/sound/hwC1D0/reconfig: No such device

I am trying to reconfigure the setup of my microphone with HDAjackRetask however when I click reply I get the message: tee: /sys/class/sound/hwC1D0/reconfig: No such device Here is a screenshot: ...
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espeak, alsa Unknown PCM

I have a Debian Wheezy and I connected to my linux a USB Dac. I use every time a MPD server (and that work) Now, I would like to use espeak with pyttsx But when I start my script (It worked and my ...
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ALSA – Choppy audio with USB audio device after upgrading to Debian Jessie

On Debian Wheezy, mplayer (and other audio players) would play audio without any choppiness. After upgrading to Jessie, while playing audio through my USB sound card (SoundBlaster Live), I get a ...
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32 views

How sound generally works in computer and what tools do i have? [closed]

I am searching google for how sound works in linux for couple of days and still couldn't find a fine and basic article or tutorial. What i am actually looking for is what termonologies do exist and ...
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14 views

How do I access the sound device with modern libraries?

It used to be that if you wanted to test your sound you could simply cat any file to /dev/snd, but that doesn't appear to work on any of the systems (Debian/Ubuntu/Mint, Arch) that I've tried. From ...
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34 views

No analog audio with AMD E1 - HDMI “takes over”

I am having problems related to audio settings on my notebook with all distros, since I used Ubuntu and Xubuntu (14 and 16), Kubuntu 16, Ubuntu Studio (14 and 15), Elementary (0.32) and MINT (17.3 ...
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37 views

Lenovo ThinkPad headphones trouble (combo jack)

Well... Sometimes ago I've bought a laptop Lenovo ThinkPad E555 with pre-installed Windows. I've removed Windows and installed Linux Mint 17.3. And now, sound through headphones does not work, only ...
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How to setup audio from for lubuntu minimal install

Running a very stripped down lubuntu 14.04LTS x64 install. I installed xorg and openbox and was up and running! but I can't, for the life of me, seem to get any sound. I installed alsamixer pulsaudio ...
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1answer
46 views

Why does Linux have a maximum number of sound cards? [closed]

I'm specifically asking about CONFIG_SND_MAX_CARDS in the kernel. From the code using this config, for example in sound/usb/card.c for USB cards, soundcards are stored in plain arrays which are ...
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10 views

Set up a pipe to a program as virtual Alsa speaker

I have a program that takes an audio pipe and broadcasts it as FM radio. My question is if I can somehow set it up as an alsa speaker so all audio is redirected to it. The common usage of it is: ...
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23 views

Alsa capturing mono microphone as right channel of stereo

The laptop microphone is mono but audio seems to get captured as stereo. The resulting recording has the sounds captured by the mic in the right channel and for some reason whatever sound is currently ...
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84 views

Multiple (combine) USB sound cards with Alsa + Jack + Pure Data

I'm a musician and I'm new to PI/Raspbian/Linux. I'm using a Raspberry PI 2 with Pure Data (PD) for a multichannel audio installation. I have one 5.1 USB soundcard (6 channels) but for my installation ...
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15 views

Linux on Macbook (9,2 - Mid-2012) - Sound wierd

Today I - again - installed Arch Linux on my Macbook Pro Mid-2012 and I'm - again - very happy. Except, that the sound of the built-in speakers is really strange. On Mac OS X the speakers were pretty ...
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1answer
42 views

Pulseaudio broken on Arch: pa_stream_writable_size() failed: Connection terminated

The problem While trying to fix a minor issue on my Arch system, I seem to have created a bigger one. I don't really know what I did to cause this (more on that later) but pulseaudio seems to crash ...
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49 views

Fedora 23 audio recording

I'm getting this error when I tried to record an audio using a python program. Also the same ALSA error occur when I tried running kwave. I'm using Fedora 23. And my laptop is HP pavilion n15-201ax ...
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40 views

alsa sound module snd_aloop

I am having some trouble wrapping my head around the snd_aloop module. I am trying to route all my audio through alsa without using pulseaudio. If I start jackd there's not sound from non alsa apps ...
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44 views

No sound through headphones despite pavucontrol (debian stretch)

After updating from jessie to stretch this week I found my heaphone jack no longer outputs sound, though my built in speakers work just fine. The puzzling thing is that everything seems to be in order ...
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1answer
18 views

Linux Mint 17.2 encounters an error, remounts disk in readonly

I already posted the question actually (Linux Mint 17.2 suddenly loses write access to filesystem), but since it occurs rarely I need to ask again with some new info I gathered. I suspect that this ...
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20 views

Audio Problems Using Crouton on Chromebook

I've been using crouton through my Acer 720c Chromebook. In addition, I have an external monitor that I like to use with it, ASUS VS247. This particular monitor has an audio pass-through but NO ...
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1answer
60 views

How to install the default sound drivers on linux?

I've tried installing some Realtek drivers to make my microphone work. But the installation failed by saying ./install: 102: ./install: alsaconf: not found (Distro: eOS Freya, based on Ubuntu 14.04). ...
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114 views

Why do you need PulseAudio?

I'm reading and trying to understand why would anyone want to use Pulse Audio and I'm failing to understand. I read this ...
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1answer
134 views

Alsa not detecting the good sound card

I tried hard to figure out what's going on with my alsamixer but it seems I'm missing something. I'm using Debian Jessie with xfce, and my sound card has sundainly stoped working (playing). The sound ...
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53 views

Soundproblem affects performance

The following error occurs when running programms with sound in wine: ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred This greatly affects performance, as it occurs very frequently. I ...
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last samples are skipping when we do record and playback in loop back mode in linux

I am just connecting my output to the input of codec using mixer controls in linux. I am recording the data with tinycap in bag round and then I started playing of a 30 seconds sine tone using ...
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1answer
34 views

MPD and Chrome can't both play audio at the same time

I use MPD to stream music, but noticed that I often could not get any sound. I finally figured out that if I quit the Chrome web browser, then playback would continue. This is the relevant section ...
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162 views

No sound card detected by alsa, (missing drivers?)

I'm on Kali Linux 2.0, on a laptop in dual boot with Windows 7 and I recently installed some module(chiptune) music players and after a reboot the next day the only sound card that I found in sound ...
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47 views

Change output (sink) using the terminal

I've made the change from Gnome to i3, and I want to be able to switch my audio output (from headphones to HDMI and vice versa) using the terminal. $ pactl list cards | grep profile Part ...
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1answer
58 views

amixer doesn't allow me to control speaker and headphones separately

So, I'm using alsa-utils to control sound in my arch. Before, I had an opportunity to mute Speakers and unmute Headphones, but know, amixer shows only one option: Master, and no sound is going through ...
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37 views

Treat multiple sound input sources as one virtual microphone

I want to automate my home using Jasper. To do that, the documentation tells me to edit the ALSA config file so a usb card will have index 0. I want to use multiple microphones spread around my ...
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pulse audio defaults soundcard speakers as headphones

Pulseaudio is defaulting my default output device as headphones from my desktop soundcard. Previously I could select headphones or speakers, but now it only says headphones. This is a problem ...
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1answer
36 views

What's the difference between Master and PCM channels in Alsa?

What is the difference between Master and PCM channels in Alsa, and which one should I manipulate for controlling the output volume? I have three sound cards (Intel PantherPoint, HRT HeadStreamer and ...
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48 views

No audio through either soundbar or desktop on Debian

I'm using a Debian stable box with a Dell monitor and the Dell AX510 "stereo soundbar". The "soundbar" has a large frontal speaker as well as two headphone jacks on the left. While the hardware ...
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36 views

ALSA sounds card volume range numbers, and Difference between Control Names

I'm developing my first sound card driver in Ubuntu with ALSA. Implementing a volume control for the sound card I stumbled upon a few questions. 1) For the function that is assigned to ...
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152 views

I'm trying to compile alsa-driver-RTv5.18 but get date-time error for gcc 4.9.2

/home/user/Downloads/Rt-Linux-HDaudio-5.18/alsa-driver-RTv5.18/alsa/acore/info.c:1065:22: error: macro "__DATE__" might prevent reproducible builds [-Werror=date-time] "Compiled on " __DATE__ " for ...
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110 views

Chromium - No Sound

I am using the Logitech G930 Gaming Headset on Mageai with the KDE desktop environment. Within Chromium I am unable to hear any sounds; the volume button indicates noise when I manually adjust the ...
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100 views

Sound stopped working in Archlinux [closed]

After years without an issue with ALSA, sound stopped working. My system: [root@myArch jm]# uname -a Linux myArch 4.2.3-1-ARCH #1 SMP PREEMPT Sat Oct 3 19:08:23 CEST 2015 i686 GNU/Linux My card: ...
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48 views

Problem with playing audio with alsa

I am using alsa with pulse audio-1.0.25 and I am using ATI Radeon E4690 graphics card with standard Fedora-17 OS. When I am trying to play audio with alsa, its not playing anything and coming out ...
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120 views

Linux sound: play back audio from input only on specific output device

I currently have a shairport (AirPlay) server which receives audio data and outputs it over optical SP/DIF (Toslink) via a USB-to-Toslink adapter. This digital signal goes through an equalizer, and ...
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2answers
217 views

Can't run aplay as root!

Not that I need to aplay as root but it came across me and I wondered why it shouldn't work. # aplay /home/bibek/apert.wav XDG_RUNTIME_DIR (/run/user/1000) is not owned by us (uid 0), but by uid ...
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1answer
156 views

Many audio devices with same name: how to use them in asound.conf?

I'd like to create a new PCM device in ALSA, thanks to these ALSA PCM plugins in /etc/asound.conf: pcm.blah { type rate slave { pcm <device1> rate 48000 } } But what name to use ...
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1answer
297 views

How do I create an ALSA virtual device that outputs to both HDMI and headphone jack?

I can tell my programs to output to either HDMI or the headphone jack just fine, but is there a way to create a virtual device in asound.conf that outputs to both simultaneously? This config comes ...
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80 views

How to configure USB audio devices that they are the same every time

I am using a Raspberry PI with two USB audio devices which are exactly the same. What I want to do is set up that the fist USB device will always be hw:0,1 and the second device will always be hw:0,2. ...
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271 views

Alsa Problems: Playback Crashes Audacity

I have been having this problem in audacity ever since I switched to Arch. I can start audacity and open a mp3 file, but as soon as I press play, the sound is fast, distorted, and crackles. Once I ...
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PulseAudo list-sinks missing ALSA Devices

I'm attempting to switch at runtime between two ALSA devices on the same ALSA card: >>> [blake@e530 ~]$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], ...
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137 views

Internal speaker sound at login screen - but not after login (only external speakers work)?

Sound plays (drum roll) at login screen. In Ubuntu and Xubuntu XFCE no sound emits from the laptop speaker, but does from the external speakers. Pulseaudio panel monitor bar dances with the sound.... ...
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121 views

USB Audio detected by ALSA but not JACK?

I have a Presonus AudioBox USB device, connected to a USB 3 port, that supports both MIDI and Audio input. When I launch JACK and open the connection list from QJackCtl, I can see that the AudioBox ...
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60 views

Headphones always muted after restart

After system restart my headphones are always muted. I have to unmute and crank volume from 0% to 100% using alsamixer. I of course tried to do alsactl store multiple times but it does not help. It is ...
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60 views

Setting Alsa to output 44.1kHz

I would like Alsa to output everything at 44.1kHz (by default it looks like it's using 48kHz). I understand that the correct option would be something like: defaults.pcm.dmix.rate 44100 But where ...
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202 views

Alsa not detecting my soundcard

So my onboard sound-card died and I bought a new small usb one. With windows it works perfectly, but on my debian testing not so much. It isn't detected by my audio system, and I cannot choose the ...