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

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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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4 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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9 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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9 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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1answer
26 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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1answer
25 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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10 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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8 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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102 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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17 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
20 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
63 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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1answer
44 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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48 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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32 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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24 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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13 views

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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70 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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1answer
31 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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1answer
34 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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1answer
169 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
22 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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74 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
72 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
259 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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78 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
55 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
100 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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1answer
100 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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87 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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80 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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170 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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1answer
93 views

Why does `systemctl enable rpcbind' change the volume of my sound? And how do I prevent this?

I just did: $ systemctl enable rpcbind And this caused the volume on my headphones to increase severly. First off, I don't understand why this happens, as rpcbind seems completely unrelated to my ...
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90 views

PULSEAUDIO does not list my ALSA capture device as a capture source

First of all, Hello everybody! My name is Przemek Gajos and this is my first post here. I have recently written an ALSA driver for my audio capture card and I have problems with PULSEAUDIO ...
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1answer
43 views

audio play not starting at beginning

When I run a audio file with like mpg321 or aplay or sox or even in TTS's (Text to speak) audio only outputs correctly from the second time I reproduce the audio file... per example in Text to ...
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39 views

Set up a sound client “server”

I have a server that its main usage is being all day long up and running and serve some VMs to the web. I want to be able to play music from the laptop to the speakers that are connected to the ...
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1answer
691 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 ...
2
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1answer
164 views

Lost sound with xmonad

I downloaded this config to set up xmonad. Hit volume up, down, works fine. Hit the volume mute hotkey, sound's gone. All good. Hit the mute key again, sound's still off. Hit volume up, nothing. ...
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73 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? ...
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369 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 ...
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117 views

Archlinux Skype problems with build-in microphone

So. My problems with next: I use pulseaudio as a sound server. I check my mic settings by arecord. All ok, but in Skype mic not working. Only silence. But when I tested it with Skype service and look ...
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68 views

arecord until sound level drops low enough

I am trying to implement constant voice recognition on my Pi at the moment, I am achieving this by having two threads running, one constantly recording (with arecord in a bash script) for X amount of ...
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1answer
61 views

PCM not affecting sound volume with ALSA

I have a computer that's running some software developed in our company, that also plays some sounds. For some reason the volume of the sound made by the software isn't affected by the PCM setting in ...
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348 views

Can't open audio device /dev/dsp: Device or resource busy

I am install Debian Jessie Beta2 on my laptop, and I just compiled mplayer on it. however when i use mplayer command to play some videos, i can't get the sound, the error shows as below: Can't open ...
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117 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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229 views

Jabra BIZ 2400 USB HeadSet doesn't output sound

I'm trying to get my Jabra BIZ 2400 USB HeadSet working on my Debian Jessie install, but I get nothing from the headphones. I've installed Audacity to test things and it will record audio, but then ...
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1answer
109 views

Send sound output to application and speaker

I'm using my Ubuntu 14.04 LTS Laptop toplay music at a party. I'm using Mixxx and is performs very well for that task. Now I'd like to add some light effects and plan to use Qlcplus for that. So I ...
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1answer
484 views

Problems with USB microphone ARCHLinux

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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585 views

No sound in arch linux with xfce4

I have installed Arch Linux with Xfce4, I installed alsa-firmware, utils and plugins. I haven't installed PulseAudio. I have no sounds in my laptop at all :/ I have unmuted in alsamixer my speakers. ...
2
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1answer
292 views

How to make PulseAudio and OSS only applications coexist on Debian Wheezy?

Before I fell back to ALSA, I had severe problems with PulseAudio deadlocks for years on my Debian system on which I am using some OSS only (requiring /dev/dsp) applications. I would like to see ...