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

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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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11 views

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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62 views

Int. speaker sound at login screen - but not after login (only ext. 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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33 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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19 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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16 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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46 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 ...
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23 views

Help me to find my speakers and headphone paths (name of PCM device)

I am really confused trying to get my speakers and headphone device PCM names like a "hw:x,x" or something like that; cat /proc/asound/devices 2: [ 0] : control 3: [ 0- 0]: digital audio ...
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43 views

RME Multiface (HDSP) sound on Debian/Jessie (Systemd / PulseAudio)

Troubles getting my sound setup to work on a fresh install of Debian/Jessie. The RME Multiface is an external rack mounted Pro Audio interface with a ton of channels and connectors (18 output ...
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48 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 ...
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8 views

Increasing volume causes left/right channels to be unbalanced

In Gnome 3, I mapped my volume up to amixer set Master 1000+, and down to amixer set Master 1000-. This works just fine, as long as I spin the volume roller slowly. If I am to spin it really ...
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39 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 ...
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21 views

Snowball microphone no longer shared between applications

I recently bought a Snowball USB microphone for a podcast. Previously, I would record my track using audacity, and simultaneously use the microphone for Skype. I tried to do this yesterday and was ...
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2answers
92 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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62 views

Sound card not detected by ALSA, but detected by kernel

Running arch linux with: Linux hunchback 3.17.4-1-ARCH #1 SMP PREEMPT Fri Nov 21 21:14:42 CET 2014 x86_64 GNU/Linux When i run: $ aplay -l aplay: device_list:268: no soundcards found... But it ...
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27 views

Switching sound card without restarting the browser

Does anyone know if Iceweasel (Firefox) runs HTML5 audio/video in a separate process that can be restarted? With Flash I can restart plugin-container after changing the sound card in ~/.asoundrc. With ...
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2answers
210 views

Why there is no sound on my Debian 7?

There is no sound on my Debian 7. How to set the sound properly now? root@localhost:/home/debian# alsactl init Found hardware: "HDA-Intel" "Realtek ALC887-VD" ...
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1answer
110 views

How to mute microphone using command line in debian 8?

I use lenovo t420. It has mute mic button. But it cannot be assigned to any action, because I got error "The key you just pressed is not supported by Qt" when I'm trying to assign to any action. But ...
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1answer
14 views

alsamixer not incrementing volume at proper interval

I am trying to use amixer to change the volume of the speaker on my computer at an incremental rate. The command below successfully changes the master volume of my speaker, but not at a consistant 5%. ...
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15 views

Need help configuring asoundrc

New Dell latitude E5450 I'm almost able to get the sound right. alsamixer does not save its configuration. $ sudo alsactl store $ alsactl store are no help. By trial and error, I did manage to ...
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64 views

Use equalizer and an usb audio card

I have Raspbian installed on my Rasperry Pi. I have a Delock USB Audio Card and setted it up, works good. My speaker set has a quite strong bass, so I need an equalizer. There is an alsa plugin which ...
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32 views

How to find the configuration differences between two identical usb audio dongle devices?

I have two units of the same headset model that use a wireless USB dongle (Logitech H800). Each headset only pairs with its own dongle, but I want to get the same dongle to work with both headsets. ...
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52 views

Default sound volume for all ALSA devices

I woud like to set up the default sound volume once for all, for all ALSA devices that will be connected ever. Of course, I could do amixer ... or even alsamixer to modify the volume of currently ...
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80 views

Command line per-application volume (maybe amixer or pactl?)

I can change the master volume with these commands (from the command line), and it affects all applications, but how do I change the volume for just one application (XMMS for example)? amixer -q set ...
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13 views

Is it possible to let the active virtual term be the only one with audio access?

I'm currently running Fedora 22 and want a setup where Kodi runs on vterm1 while steam runs on vterm2. I have set up two seats using LightDM. I am currently using ALSA in order to let Kodi bitstream ...
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16 views

Speakers don't un-mute after muting the audio

I recently installed Bluedevil on my Fedora 21 XFCE notebook to be able to use my AS-600 bluetooth headphones, and they worked pretty well, the problem now is that whenever I mute the audio by running ...
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298 views

How to setup “Creative Sound Core 3D” on Debian Jessie correctly?

I justed installed Debian Jessie and was happy to see (or hear) that my Creative Sound Core 3D (as onboard chip on my Gigabyte GA-X99-Gaming 7 WIFI mainboard) worked out of the box when trying to play ...
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36 views

How can I synchronise kmix and alsamixer volumes at maximum?

Occasionally, I can increase kmix's volume to its maximum (using the volume hotkeys), but the sound is still very quiet. I can open up alsamixer, and see Master at ~8%, even though kmix's volume is ...
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1answer
26 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 ...
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1answer
167 views

CVLC: alsa name?

Someone know how to pass an alsa device name to cvlc? I did aplay -L null Discard all samples (playback) or generate zero samples (capture) default:CARD=SB HDA ATI SB, VT1708S Analog ...
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47 views

After each reboot, speakers have volume 0

For some reason my audio volume keeps being reduced to zero when I reboot. I am able to fix this temporarily like so: rm ~/.config/pulse/* If I reboot, the volume functions normally. Rebooting ...
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103 views

USB MIDI keyboard (Oxygen 61) now not appearing in QJackCtl

I've had a USB Oxygen61 MIDI keyboard for awhile now, and it has worked fine in the past (maybe a month ago, last I tried). But now when I plug it in, it no longer shows up in aconnect -l, and I ...
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68 views

How to switch off my laptop speaker when headphones is plugged

I've Kubutu 15.04 then KDE Plasma 5 and my laptop speaker doesn't switch off when headphones is plugged. Here my alsamixer snaptshot: My laptop is a ASUS N550L My sound card I found with lspci: ...
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47 views

Low volume from rear line out, fine from the front panel

When I plug my headphones in the jack on the rear panel of my machine, the sound comes out low, even after I turn up every imaginable slider from PulseAudio or AlsaMixer or whatever. When I plug them ...
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How to join the two input streams of a multidevice soundcard?

I have an old M-Audio Blackbox that consists of two sub-devices. If I open qjackctl those are advertised as hw:Box,0 and hw:Box,1. Up to now I readily switched between those configurations as needed, ...
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113 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 ...
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56 views

See a serial port as a MIDI IN device

I have connected a MIDI device to my UART RX / serial port /dev/ttyAMA0 using some electronics as described here. I have properly configured the right baud setting (31250 baud, etc.). It works: I can ...
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55 views

Plug dmix into JACK

There are several guides of how to use JACK with ALSA dmix plugin, like this and this. All of them suggest to route the JACK output through dmix, which causes a latency to the jackified programs. To ...
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428 views

How can I use ALSA dmix and multi plugins together?

I'm playing with a console sound visualiser which wants its own ALSA device to listen on. I'm editing ~/.asoundrc. I know I'll need the multi plugin to split the sound data onto separate devices. ...
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1answer
24 views

Alsamixer has extra things that won't go away

While trying to put a "pre-amp" slider into Alsamixer, using /etc/asound.conf, I managed to get it wrong several times. Each time I changed something in /etc/asound.conf and restarting ALSA, I wound ...
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137 views

Share alsa capture device with alsaloop

I'm trying to 'share' the microphone input such that programs can have access to it. Initial naive attempt. In one terminal: alsaloop -C hw:1,0 -P hw:0,0 -t 500 -c1 -A 5 -T-1 --resample -v In ...
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2answers
119 views

Choppy Sound in Chrome on Linux (flash or HTML5) but not VLC

As the title states, I currently have choppy sound on Chrome in Linux in both flash and HTML5 content, however VLC does not have choppiness. I am running Arch, using Chrome (dev channel), and using ...
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1answer
557 views

Issues with arecord command

I'm having some mixed results with the arecord command in the terminal. The hardware I'm using consists of the Cirrus Audio Card for the Raspberry Pi. I'm trying to record a 24-bit 192kHz sound (from ...
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186 views

Fedora - Integrated microphone not working

I just installed a fresh Fedora 21, my system is now up to date. Now, my problem is that my integrated microphone is not working. I tried several different fixes that doesn't work (install and ...
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1answer
93 views

Change audio volume on the right device

I'm trying to change the master output volume of my USB DAC (PCM 2704). When doing aplay -L I get: null Discard all samples (playback) or generate zero samples (capture) default:CARD=ALSA ...
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1answer
133 views

How do I set the output port on my audio card?

My audio card has two ports, for clarity I'll call them the 'speaker' and 'headphone' port. In windows, the audio control sees two separate ports, and I can switch back and forth between speaker and ...
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161 views

How to troubleshoot audio problems / issues in Arch?

I've been running Arch for almost a year now, and my audio was working great until I started messing around with things (>.>) The reason I started messing around with things is because I want to get ...
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109 views

Playback and simultaneous recording through external USB sound card

I've an external USB sound card (in my case it's a TerraTec Aureon 7.1 USB). I've looped the earphone-out to the line-in using a 3.5mm jack cable. I'm interested in starting the playback of a MP2 ...
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123 views

Set maximum volume in Arch Linux

Recently, I purchased new over-ear headphones that have some really powerful speakers. I usually have to listen at ~4% volume to use them comfortably. Each time I restart my computer, they move back ...
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2answers
262 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, ...