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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2answers
41k views

How to use command line to change volume?

I am trying to control the volume using my programming script. How can I do the following in Fedora 15, Ubuntu linux? Mute/ Unmute Volume up and volume down Note: Please note that I use a web USB ...
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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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1answer
874 views

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 \ ...
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10 views

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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1answer
1k views

How can I find the correct name for my microphone and sound output using aplay or pacmd or something else, to apply in asound.conf?

I need to write a default mic and default speaker output in the asound.conf config file. But I don't know exactly how I can find my external sound card or microphone device's name, so that on reboot ...
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1answer
35 views
+50

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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4answers
2k views

Is there any gnome-shell mixer icon relying on alsa and not pulseaudio?

So, long story short, when I installed Mint 12 on my Dell laptop I realized my HDA-intel sound board have problems with pulseaudio. I uninstalled pulseaudio and got my sound back, but removing ...
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1answer
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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1answer
907 views

Trying to hear audio coming from LINE IN using ALSA on Debian

I have a netbook with Debian sid, command line only, using it for a server. I am trying to configure it so that the speakers play back what is going in through the netbook's line in audio port. I can ...
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1answer
2k views

Ubuntu sound not working after sleep/suspend

Whenever I sleep my laptop I mean if I down the flap sound doesn't work, every time i have to restart my laptop for sound to make working. Fo instance right now sound is not working(since I closed ...
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1answer
2k views

mpd fails to open ALSA device where aplay succeeds

I am trying to set up an Raspberry Pi / Raspbian wheezy audio player using the onboard sound hardware via ALSA LADSPA plugins to stereo downmix and compress the audio. aplay, sox, mpg123, moc (cd ...
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1answer
871 views

pulse-audio does not recognise my Logitech mic and my Webcam mic

I use the (great) AK5370 microphone for Skype, but it is not recognized by my archlinux i86_64. It also fails to recognize the mic on my Logitech Webcam (PTZ, which I do not use). Both are connected ...
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2answers
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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1answer
32 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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1answer
2k views

Is there an easy way to switch playback soundcards?

I recently purchased the roccat kulo headset which comes with a nice USB soundcard, completely functional under linux :). Howsoever I now struggle to easily siwtch between my laptops integrated ...
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2answers
825 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 ...
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0answers
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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20 views

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 ...
2
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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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1answer
700 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 ...
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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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1answer
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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1answer
823 views

Problems with USB microphone

My USB mic in webcam in Skype not working (cam works fine). I use Arch Linux with alsa. I set up pulseaudio but then I removed it because it is not stable. cat /proc/asound/cards 0 [SB ...
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82 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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1answer
2k views

what device name should I have to give in snd_pcm_open other than “default”

I want to record sound from 2 devices simultaneously: internal mic external usb webcam mic Using pulseaudio sound controller, I set either of these devices as default and could record sound with ...
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1answer
224 views

How to troubleshoot jack detection in Pulseaudio

Pulseaudio apparently supports "jack detection", meaning auto-detection of whether anything is plugged into each jack (e.g., headphone jack, line out jack) or not. Unfortunately, Pulseaudio's jack ...
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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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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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48 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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2answers
629 views

How can I make beep sound through speakers(spdif)?

I want to beep through speakers. I'm using alsa through S/PDIF of ESI Julia. User is in the audio group. ls /dev/snd controlC0 midiC0D0 pcmC0D0c pcmC0D0p pcmC0D1c pcmC0D1p seq timer If I try ...
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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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0answers
39 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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43 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
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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19 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
58 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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1answer
160 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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1answer
132 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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51 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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12 views

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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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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2answers
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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1answer
33 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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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
57 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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0answers
18 views

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 ...
2
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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 ...
0
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1answer
388 views

make google talk use the correct alsa sound device for input

I'm trying to make the Google Talk plugin accept sound. In other programs (e.g. Skype, Audacity) I did this by selecting the device for my sound input, hw:0.2 (see screenshots). Google Talk does not ...
0
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2answers
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 ...