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

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1answer
891 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 ...
8
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1answer
949 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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1answer
987 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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0answers
11 views

alsa volume settings are constantly rested to a default value everytime I plug my earphones on and off. How to fix it?

every time that I attach my earphones on the jack plug the alsa volume settings get reset to some default values. My volume settings are not even remembered the next time I attach my earphones. Any ...
0
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1answer
970 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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1answer
1k views

Unable to use python speech_recognition lib Microphone class due to ALSA

I am attempting to write a speech recognition program for the raspberry pi, however I am facing some issues using python's speech_recognition library. From the error messages (posted below) I think ...
4
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1answer
1k views

Finding the current speaker volume (signal strength)

I'm trying to create a widget for awesome wm that controls and monitors volume. Getting and setting the speaker volume is easy in ALSA and PulseAudio, but how about getting the actual signal strength?...
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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 ...
4
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2answers
876 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
31 views

Sound corruption/echo when trying to use alsa dmix

On an embedded system, I have discovered that only one application can use the sound card simultaneously. To my limited knowledge, to solve the issue, the ALSA provides the dmix plug-in to perform the ...
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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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2answers
1k views

xfce4-notifyd Not Showing Volume Change Notification on Fedora 22

I am using xfce4 on Fedora 22. I am able to use my volume keys to change the volume and use my mute key with no issue. However, no notification is showing on the desktop indicating volume change. ...
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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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0answers
22 views

Arch Sound output only showing as Headphone while no headphone plugged

I've struggled couple of days to fix this issue with installing / uninstalling / editing alsa , pulseaudio setting but no luck . One time i was able to fix audio with alsamixer and select output ...
1
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1answer
83 views

Detect when audio card is powered (using alsa)

How can I detect in a script if my audio card is being powered? Motivation: I have a Linux mini computer (Odroid U3), used as a music player. And I want to power on a connected amplifier only when ...
0
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1answer
327 views

What are these strange characters in wifi-menu and alsamixer?

I have a fresh install of Arch. When I run wifi-menu or alsamixer, both of which I think use dialog, the display in the shell is not correct. The border, for example, is drawn with the wrong ...
2
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1answer
990 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
73 views

No soundcard found after upgrade to Debian Jessie

After upgrading Debian Squeeze to Jessie (via Wheezy) last month I noticed I had no sound anywhere. I've looked through several Debian wiki pages and forum posts and tried (parts of) several suggested ...
2
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1answer
460 views

How do I make Wheezy see my sound card?

I'm working on a relatively clean install of Wheezy - relatively as I installed it today and have been installing packages for quite some time. I previously had Ubuntu which played sounds, so it's not ...
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0answers
11 views

Edit audio output before playback

I want to low level edit the output of ALSA sound system. I should sniff the audio output, change it before playback and then play it. I saw /dev/snd/OUTDEVICE but I think it is write only. Which is ...
0
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1answer
339 views

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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2answers
426 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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0answers
113 views

Creative CA0132 no sound

I'm trying to get my sound card of my gigabyte g1 gaming ga-z170x-gaming 7 working. I've installed fedora 23, kernel 4.4.7-300.fc23.x86_64, there is no sound, however hdajacksensetest -a shows my ...
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1answer
41 views

ALSA REAL TIME AUDIO PROGRAMMING [closed]

I am trying set external audio interface in Ubuntu as default so that I can use it in real time audio programming using ALSA. Any help please
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51 views

Unable to playback captured audio using USB sound card

I am trying to capture and play audio using C program. For this I got this tutorial.. Here is the program which I am running:- /** * Jan Newmarch */ #define PERIOD_SIZE 1024 #define BUF_SIZE (...
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0answers
38 views

No output through stereo jack

I cannot get any sound to output through either of my PC's stereo jacks. I do not even hear the typical static when I plug a device in. This is the case even though Phonon displays "built-in audio." I ...
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3answers
627 views

Alsa mixer unmute problem on Thinkpad laptop

After updating my Debian jessie laptop yesterday, the mute/unmute button stopped working. The volume up/down buttons work and I can mute the sound but when I press the mute button again to un-mute, ...
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0answers
24 views

How to play a beep/sound file from the u-boot for Panda-board?

I want to play a Beep/Sound file during the boot up from the u-boot on the speakers connected to panda-board. As this functionality is there in PC ,How to replicate the same on the embedded platform ...
3
votes
1answer
91 views

ALSA - Traktor Audio 2 - How to split front and rear stereo channels / How to debug dmix

I am struggling to persuade ALSA to separate the front and rear outputs of my Native Instruments Traktor Audio 2 external USB soundcard and would really appreciate help. USB Vendor ID: 17cc, USB ...
2
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0answers
82 views

mplayer: Problem opening sound files, gnome-mplyaer works, why?

I'm new to this community and this is my first question. I am using Debian 8.3 Jessie and have two sound files a.mp3 and b.mp3 on my hard drive. I am using mplayer and gnome-mplayer to open these ...
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1answer
29 views

How to recover ALSA default configuration after reverting changes in .asoundrc?

I've done some changes via .asoundrc (created "softvol" volume controls). Now, I want to get rid of these changes. Nothing of the following helped so far: Deleted .asoundrc and rebooted system. ...
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0answers
10 views

Mute audio but make it capturable for screenrecorder in linux

I can capture videos with audio for example with simplescreencapture. Usually this just captures what I see on the screen and what I hear from the speakers. If I mute the speakers, no audio is ...
0
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2answers
783 views

Unexpectedly lost speaker output. Headphone output works fine

Yesterday when I opened my laptop I noticed that I no longer had sound from the built-in speakers. I carefully checked settings in Sound Preferences, and then dropped to shell and looked in alsamixer....
0
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1answer
490 views

Linux mint 17.3 without HDMI sound output

Well, tried everything: alsa, alsa-utils, alsamixer, pulseaudio, puvecontrol and a lot more. Even I changed from ubuntu to Linux mint, but I can't get sound from hdmi (laptop connected to led tv). I ...
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1answer
95 views

Using aplay and choose which output on card to use

I have an xmos-200 board that is able to record 8 channels and push output through 8 channels. I'm going to focus on the output. For outputs, there are 4 3.5mm jacks with 2 channels each. The board ...
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0answers
57 views

Setting up a midi controller on Linux Mint

I've recently bought a Worlde Easykey 25 midi controller. I would like to set it up to work with my Linux Mint setup, preferably without messing up my other sound. I am aware of this guide here, but ...
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0answers
62 views

Gentoo Linux: Enabling a mbeq equalizer for ALSA breaks application audio but works when tested with speaker-test

I am running Gentoo Linux using kernel Linux-4.3.3-hardened-r4 and my sound system is only ALSA, i.e. no OSS or Pulseaudio. I am trying to enable a system-wide equalizer, but since alsaequal never ...
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0answers
92 views

Bad sound quallty with Conexant CX20751/2

I have a Lenovo G50-80 with a sound card detected as Conexant CX20751/2 The sound under linux (Debian based) is very bad, with something like a metallic sound. I'm using this config at /etc/modprobe....
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0answers
111 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 ...
1
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1answer
21 views

alsa config for startup

I'm having a problem with my headphone. A friendly person over at the #alsa irc channel came up with this to rectify: sudo hda-verb /dev/snd/hwC0D0 0x15 SET_EAPD_BTLENABLE 2 However it has to be ...
1
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1answer
48 views

ALSA RawMIDI issue

I'm trying to write an application using the ALSA RawMIDI interface to exchange sysex data with a hardware synthesizer via USB on a Raspberry PI. the RawMIDI library comes with libasound2-dev. In my ...
2
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0answers
22 views

ALSA skipping initially during playback

I have an ALSA configuration that provides the following at the moment: Take default audio and make it mono Pass through alsaequal Expand audio to 4 channels, all mono Split 4 channels between 2 ...
2
votes
1answer
343 views

Setting up surround sound with optical out

I have Centos 6.3 running on this pc. The built in sound card is detected normally and is a 7.1 card with all speakers listed. It includes a optical out as well as HDMI for the built in video. It ...
0
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1answer
3k 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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0answers
34 views

Multiple sound errors when running Pyo

I just tried to install the python module with pyo following this method: http://ajaxsoundstudio.com/pyodoc/compiling.html it returned this error: pyo version 0.7.8 (uses single precision) ALSA lib ...
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1answer
22 views

How do I create virtual ALSA device from which I can record everything that is played?

Should not depend on PulseAudio. Like veth for network, of v4l2loopback for video, it should create virtual audiocard from which I can record everything that is played.
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0answers
31 views

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 ...
27
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2answers
49k 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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0answers
73 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 ...
3
votes
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 ...