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

learn more… | top users | synonyms

1
vote
1answer
72 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 ...
1
vote
0answers
60 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
votes
1answer
58 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 ...
1
vote
0answers
13 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: ...
0
votes
1answer
97 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 ...
3
votes
0answers
246 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 ...
5
votes
1answer
3k 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 ...
1
vote
1answer
263 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 ...
0
votes
1answer
153 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 ...
0
votes
0answers
31 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 ...
0
votes
0answers
122 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 ...
0
votes
2answers
708 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 ...
0
votes
1answer
23 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 ...
2
votes
0answers
128 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 ...
2
votes
0answers
146 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 ...
5
votes
1answer
217 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 ...
1
vote
0answers
47 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 ...
0
votes
1answer
193 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). ...
0
votes
1answer
498 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 ...
0
votes
1answer
357 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 ...
0
votes
0answers
110 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 ...
0
votes
0answers
13 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 ...
1
vote
0answers
45 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 ...
0
votes
2answers
160 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: ...
2
votes
1answer
88 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 ...
1
vote
0answers
114 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 ...
0
votes
1answer
184 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 ...
1
vote
0answers
43 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
votes
1answer
77 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
votes
1answer
409 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
votes
2answers
85 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 ...
0
votes
1answer
189 views

my bluetooth headset works, and linphone works, but not together

i have my headset working via bluez-alsa and ~/.asoundrc, and i have linphone working. can anyone clue me how to put 2+2 together and get linphone working through my headset? or any other softphone? ...
0
votes
1answer
113 views

Linux via Buildroot doesn't include alsa-utils

After following these instructions from here and from here, my booted Linux does not include ALSA-Utils like "aplay". But I have set all ALSA options. Any idea what's wrong? I also found this but I ...
0
votes
1answer
326 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 ...
0
votes
1answer
50 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 ...
0
votes
0answers
30 views

Need help configuring .asoundrc file

With a new Dell latitude E5450, I'm almost able to get the sound right. But alsamixer does not save its configuration. These commands $ sudo alsactl store $ alsactl store are no help. By ...
0
votes
0answers
181 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 ...
3
votes
1answer
287 views

How to make Alsa Loopback device to work in Puredata

I'm trying to route an audio signal from an Airplay source (with Shairport-sync) to Puredata. To do so, I created a Loopback Device in Alsa. Then I set this virtual device as Shairport's output like ...
1
vote
0answers
73 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 ...
5
votes
4answers
6k views

My audio device not working

I have been setting up a new CrunchBang Linux and my sound doesn't work. When I type lspci -v command and alplay -l command in command prompt I can see that my sound card is connected and detected. ...
1
vote
1answer
177 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.... ...
1
vote
1answer
426 views

No output from headphones jack (occasionally), although system displays output

I am having an issue where I will start or restart my PC and suddenly no audio comes from the headphones jack. This only happens occasionally, and I don't know the cause. My PC speakers work fine ...
2
votes
1answer
475 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 ...
2
votes
0answers
154 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 ...
0
votes
1answer
238 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 ...
3
votes
1answer
617 views

Internal microphone not working.. again (Fedora 20, KDE, HP 8460p)

Unfortunately I have yet another "adventure" with my internal microphone. Everything is un-muted in alsamixer, as well as in pavucontrol. It is not the first time it stopped working, but now - for ...
1
vote
0answers
125 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. ...
2
votes
1answer
506 views

Focusrite Scarlett on Linux input mapping?

Does anyone use these interfaces on Linux? If so, how do the inputs map (e. g. with ALSA/PulseAudio)? E. g. the Scarlett 6i6 has the following connections. Inputs: 2x symmetric XLR inputs (one for ...
2
votes
2answers
188 views

Alsa mixer for assigning specific apps to a specific soundcard?

I am looking for a Alsa mixer GUI for Xfce (or better yet, desktop-independent) to replace PulseAudio Mixer. While I'm happy with the latter, my USB DAC is very poorly handled by PulseAudio and I need ...
13
votes
1answer
3k views

Debian systems seems to recognize speakers but not the headphones for Lenovo laptops

First of All, I know there are lot of questions out there on same topic but still I could not figure out the solution. Being a average system level programmer (beginner in kernel programming) I would ...