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

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Why don't I hear audio playing from my CentOS 6.5 Vagrant box?

I want to play a wave file from my CentOS 6.5 Vagrant box using aplay and of course I want to hear the sound. This is what I do: > aplay sine.wav Playing WAVE 'sine.wav' : Signed 16 bit Little ...
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1answer
78 views

how to test sco packets in bluetooth

Issue : Monitor sco packets between master and slave bluetooth. Description of problem. I have small in-house Bluetooth device (developed in Linux fedora OS) and is configured as slave device. I am ...
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1answer
228 views

No sound on linux

Have no sound on my system (opensuse 13.1 | gnome 3.12). alsamixer ALSA lib control.c:953:(snd_ctl_open_noupdate) Invalid CTL default cannot open mixer: No existe el fichero o el directorio Some ...
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1answer
1k 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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1answer
391 views

Low sound volume issues on Z97 motherboard and linux mint KDE

I've recently set up a new system with MSI Z97 gaming 5 motherboard however the first issue I've encountered was that the sound was crackling. I've fixed that by updating the kernel to 3.16.3 Now the ...
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18 views

Dynamic audio sinks and sources with alsa

So, I have a speakers, a usb headset, and HDMI output available to my system and would like to switch which is used by any specific application, or all of them on the fly. So far I am able to use ...
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84 views

System freeze on “setting up alsa”

I use Debian wheezy and I boot the computer and get stuck in the line: [....] setting up alsa .... It freezes, it only responds to "REUSIB" (Emergency Reboot With Magic SysRq), but it is unusable as ...
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371 views

No Audio on my system (currently running elementary OS)

So I haven't used a Linux distribution in a long while, and I decided to install it in my new computer. I settled for Elementary OS, but it seems I am completely unable to get my computer to play any ...
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1answer
166 views

Centos 6.4 (64) skype 4.2 no sound notification

Everything works fine. I can hear and others can hear me. But no sound notification. In options -> sound devices "Make a test sound" button is disabled. Other button show "PulseAudio server (local)". ...
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1answer
727 views

Sound not working in Debian except in google chrome and test utilities [closed]

Yesterday, I had Archlinux on my Dell Latitude E6520 and the sound was working perfectly fine (I even had the loud beep I couldn't get rid of). Today, I installed Debian and alsa. The first surprise ...
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1answer
1k views

Samson Meteor Mic under Linux/ALSA

Has anybody gotten a Samson Meteor Mic working under Linux/ALSA? I tried to google it but I found no mention of Samson Meteor under Linux at all. Kernel/ALSA/Audacity see the device. Unfortunately I ...
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1answer
27 views

snd_rawmidi_open() waits forever - no error message

I am trying to use ALSA for MIDI purposes in C. My problem is, snd_rawmidi_open() sort of "crashes" (waits forever like a while loop) when using valuable arguments : #include <stdio.h> ...
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1answer
82 views

Jack not recognizing MIDI device

Jack does not recognize my MIDI keyboard, whereas ALSA does. Here are the logs : pi@raspberrypi / $ jack_lsp system:playback_1 system:playback_2 LinuxSampler:midi_in_0 LinuxSampler:0 ...
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223 views

Crunchbang Linux Waldorf: Sound Problems with NVIDIA Corporation MCP61 High Definition Audio (rev a2)

$ lspci | grep -i audio 00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2) 02:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0 $ sudo speaker-test ...
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1answer
81 views

ALSA sampling rate

Couple of questions: If you set the capture sampling rate in ALSA API to say 1000Hz, is the input really sampled at 1000Hz, or does the sound card always sample at its maximum capable sampling rate, ...
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118 views

.asoundrc, alsaequal as default breaks firefox MP3 playback

Alright, so the important thing to note here is that it (appears) to ONLY break MP3 playback, other formats work. Youtube html5 videos and .ogg playback work fine and use the equalizer as expected, ...
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53 views

HDA Realtek and Auto-Sensing Disable

I have a couple different devices using Realtek audio chipsets (one is ALC269VC, another is ALC262). On both devices (laptop/tablet type devices, with internal speakers and a headphone jack) when I ...
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1answer
379 views

GStreamer and sample rate conversion

I have a soundcard that is only partially supported in Alsa, i.e. playback is only working in 48 kHz. Most of my audio files are in 44.1 kHz, and I would like to use Exaile as my audio player, as it ...
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3answers
6k views

How do I enable sound in this fresh Arch install?

I'm following the Arch Beginner's Guide. I have Arch running. Now I'm working on the post-installation instructions, one of the first parts of which is to unmute the speakers. This is where my ...
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0answers
63 views

PulseAudio: Sound works after first pacat call

I've got a strange problem with PulseAudio and a gstreamer python script (pygst). The script below works only if I execute a cat /dev/urandom | pacat before. I've absolutely no idea what can ...
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1answer
300 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 ...
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98 views

Modify sound volume per application [closed]

In Fedora 12 + Gnome 2 I used to be able to modify the volume of each application seperately. Now, I'm on Fedora 20 + MATE 1.6.2, and this option is gone. If I click Notification Area > Sound > ...
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141 views

Sound crackles and echos to the point of being unusable

I recently got a new desktop, installed debian 64 bit, and found out that the sound doesn't work at all. I'm not entirely sure what information I should give to help identify the problem but I'll do ...
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2answers
683 views

Volume too quiet at maximum

I recently replaced my broken Sennheiser PC350 to a Beyerdynamic DT770 Pro 80 Ohm headphones and I've encountered a really annoying issue. Everything is too low. I can listen to it, but it's almost as ...
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3answers
85 views

Alsa driver update in client machine without make

I have a Debian 6 system and updated alsa from 1.0.23 to 1.0.25, It works as expected. Steps which I performed to compile: ./configure make make install Now , I have 100's of client machines in ...
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710 views

Configuring USB digital microphone under Linux

I just bought a digital USB microphone. It looks nice, but I cannot make it work. I use openSuse 12.3. How do I ever know whether my system has the drivers for such and such microphone? The good ...
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1answer
1k views

Alsa & JACK - card and device names (different naming conventions)

I am a bit confused about audio device names. If I use command aplay -l i get the list of all audio devices on my system: **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], ...
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1answer
143 views

Set Sound Settings to 152% on Boot (LMDE)

I have installed Linux Mint Debian Edition and everything is working correctly, except that 100% sound setting is not ideal on my speakers, so I see that I can increase it to 152% from my sound ...
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0answers
176 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 ...
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3answers
5k 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 ...
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1answer
389 views

Focusrite Scarlett 8i6 With linux mint

I have a focusrite scarlett 8i6 soundcard and I would like to make many sounds with it. Currently it's deadly silent and I want to crack on with some programming whilst listening to music! I usually ...
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111 views

Calling speaker-test from usermode-helper API

I needed to call come audio-producing applications from kernel in a toy module. In order to test that, I thought of calling speaker-test from a simpler module, but no sound would ever come from it. I ...
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4answers
8k views

Change sampling rate in ALSA

I'm a Computer Audiophile, I've used Windows (with ASIO4ALL)and OSX for Audio. Now I'm making Ubuntu 13 my HTPC/Stereo Audio. To begin with I disabled Pulse audio and using GooMusicplayer with ALSA. ...
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133 views

Understanding Mixing of sounds in ALSA

I can't seem to bend ALSA completely to my will, even after I spent a lot of time configuring it. I just do not seem to understand it well enough. Here is my /etc/asound.conf: pcm.dmixed { ...
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1answer
329 views

FFmpeg doesn't recognize my audio sources

I want to record my screen with audio for practice. I saw recommendations to use this command line: ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 25 -s 800x600 -i :0.0+200,100 -c:a pcm_s16le -c:v ...
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225 views

Android w/ Glibc stack, how can I set-up audio w/ nvlc? Is it possible with ALSA(Debian)?

With the help of the book "Embedded Android" by Karim Yaghmour I managed to learn enough about Android's build process last fall. With enough fiddling around and Google'ing I learned a sufficient ...
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98 views

Selected ALSA device falls back to default in Wine with PulseAudio installed

Under SolydK (based on Debian Testing), as PulseAudio is installed by default, I unless I switch from the default sound device to an item that appears in winecfg at the sound settings, I get distorted ...
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4answers
3k views

How can I switch to my USB headset automagically when it's plugged in?

I'm running Funtoo Linux, a Gentoo derivative. My two new Plantronics USB headsets (one wired, one wireless) work nicely. I plug one in, ALSA notices it, and if I manually set an application to use ...
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1answer
1k views

Why would alsa sound pop, crackle and be generally too distorted to listen to?

I've been having a weird issue with Alsa recently. For some reason all sounds are really distorted and no matter what application I use, I won't get anything clear out of it. I've tried Tomahawk, ...
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1answer
505 views

Changing sound chip with ALSA

I have a laptop with Intel audio card that lspci reports as 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) It is responsible ...
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1answer
90 views

soundblast live on linx mint: fatal: module snd-emu10k1 not found

I'm trying to get my soundblast live 5.1 emu10k1 (rev 7) working. It is listed in my xconf settings but the onboard sound processor is the standard (i have tried to make de soundblaster standard, but ...
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0answers
372 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 ...
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1answer
2k views

Elementary os no sound after alsa update

I am new to Linux but really love Elementary for its simplicity. After noticing that my sound was quite poor in Elementary, compared to Windows 8.1, I have tried updating the sound drivers. I ended up ...
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0answers
529 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 ...
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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) ...
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282 views

jackd error ALSA: could not start playback (Cannot allocate memory)

I'm using a headless Raspberry pi setup using ssh from my mac. I recently purchased a Wolfson pi sound card and am trying to start JACK from the command line. When I type jackd -d alsa, I receive the ...
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373 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 ...
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2answers
3k 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 ...
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90 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 ...
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1answer
454 views

How to simultaneously play sounds on 4.0 surround system using aplay

After my first configuration war against alsa (won with the help of CL.) check this question ... I would now want to go further : I am able to play multi-channel sounds on my setup, but I now need ...