Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system.

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ALSA - no surround playback with mplayer

When I run: speaker-test -c6 ...everything is fine. I get 5.1 playback. However, when I run: mplayer -channels 6 "some video with 5.1 audio" no audio plays. Here is what appears in the ...
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1answer
15 views

ALSA does not detect all USB cards properly

I want to run four identical USB audio devices, but ALSA shows only two of them on one machine (all four operate properly when plugged in alone). It seems they are detected (and initialised) ...
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21 views

How to install Alsa sound in android [closed]

I have Console OS running on a lenovo g-50 laptop and it works great all except there is no sound. I found out that alsa mixer is not installed and I tried the alsa app on google play but it has the ...
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1answer
13 views

ALSA: How to configure an (virtual) audio device for each channel?

I would like to play different sound/music of the left and right speaker/headphone. I understand that left and right speaker are called channel 1 and 2 in ALSA. The DJ software I'm using (mixxx) does ...
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1answer
62 views

ffmpeg ALSA audio capture not working

I use the static binaries of ffmpeg (http://johnvansickle.com/ffmpeg/) on linux mint 17.2. When I try to capture audio with the command: ffmpeg -f alsa -ac 2 -i hw:0 output.wav I end up with the ...
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1answer
4k views

Kali Linux No Sound

Basically I misstakenly removed alsa config because of this guide http://hackerzelite.blogspot.in/2014/03/fix-sound-driver-on-kali-linux.html . And there is no sound icon now, as well no sound. But ...
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37 views

Chromium Speech-Recognition: Unable to set hw params for CAPTURE (Microphone)

I'm trying to get the Chromium Speech-Recognition working. I'm starting Chromium with the following command: chromium-browser --kiosk --incognito https://my.url --alsa-input-device=plughw:1 But the ...
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2answers
3k views

Set device when using gst-launch alsasrc

As part of my Sphinx setup, I listen to my input device like this: gst-launch alsasrc (Well, the actual command is this: alsasrc ! audioconvert ! audioresample ! vader name=vad auto-threshold=true ...
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4answers
7k views

Alsa USB-Audio hotplug

My new USB audio speaker appeared as the second device in Alsa. I managed to make it the primary one: $ cat /proc/asound/modules 0 snd_usb_audio 1 snd_hda_intel $ cat /proc/asound/cards 0 ...
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4answers
33k views

How to make Alsa pick a preferred sound device automatically?

I bought an USB sound card. I'd like to set up my Linux desktop so that it prefers the USB device, if it is plugged in and automatically switches as the device is (un)plugged. Is it possible, and how? ...
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3answers
6k views

alsa-base.conf missing in new Raspberry Pi Raspbian Jesse

I'm trying to make my Pi use an external USB sound card as a default. All tutorials are telling me to edit /etc/modprobe.d/alsa-base.conf However the version of Raspbian I have (pretty new build, I ...
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15 views

Debian Unstable x64: ALSA equalizer plugin unavailable to i386 applications, no sound

I'm running Debian Unstable x64, but sometime use legacy applications or games that are only available in i386. With plain ALSA (there's only so much PulseAudio a sane person can take), i386 ...
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1answer
363 views

Distorted/crackling sound coming from when ALSA's .asoundrc file uses hw type instead of plug type

I have XBMCbuntu installed on a HTPC running Ubuntu 14.04 and Kodi 14.1. I have been trying to install and run Steam so that I can stream games from my gaming PC. I followed the steps from this guide ...
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0answers
10 views

Why Won't `amixer` Set My Volume Below 17%?

When I run amixer, I see the following output for the "Master" channel: $ amixer Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: ...
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0answers
47 views

linux - headphones and speaker works only AFTER resume from sleep

Good day all For quite some time I have had this issue, not distro specific, I assume it is a kernel related issue. aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], ...
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1answer
58 views

How to select which sound output device to use for /dev/dsp OSS emulation?

I have a system with two sound devices and am using sound via HDMI out. This is Card 1, Device 7, Subdevice 0, so I set in my /usr/share/alsa.conf: defaults.ctl.card 1 defaults.pcm.card 1 ...
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1answer
285 views

VLC Not able to detect/choose default audio device output

I'm on a clean Funtoo install and after setting up ALSA i've just tried to play some movies through VLC but it doesn't seem to be able to detect/choose the default output audio device. If i go to ...
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0answers
41 views

Google Chrome use alsa instead of pulseaudio

I would like to make Google Chrome use alsa instead of PulseAudio so there is not a delay when watching netflix. However, I don't want to uninstall PulseAudio because I need to be able to use Skype. ...
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0answers
119 views

Ubuntu 15.04/15.10 does not play any audio after 'amixer set Master toggle' two times

I used the 'amixer set master toggle' command to mute my music on the home server during a phone call. Afterwards I tried to use the same command to un-mute the mixers: Dind't work. I tried to ...
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0answers
99 views

Capture audio (alsa) and video (v4l2) from usb capture card

I want to save my old videos using a USB capture card. I'm using V4L2 Test bench and I've got working video and audio. I've managed to capture both audio and video, but not a the same time (saving to ...
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19 views

Configure MultiChannels on ALSA Linux Platform

I want to use ALSA library for playback and capture audio. I have an 8-channel interleaved wave file. When playing it through the program definitely recognizes that it has 8 channels. However, I only ...
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2answers
1k views

Raspberry Pi sound

I am trying to configure the linux software festival which converts text to voice on a Raspberry Pi. Before and after the sound is played there is glitch sound that is heard. Does anyone know what ...
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1answer
50 views

How do I increase the number of MIDI through ports in ALSA?

ALSA always creates 1 MIDI through port. Since I work with Windows music applications via Wine, and because MIDI through ports are everything-proof, how can I increase the amount of MIDI through ports ...
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69 views

Understanding asoundrc and hdmi output

I am running nixos on a lenovo x220t. When it starts it finds the analog speakers and shows only them in alsamixer (or pavucontrol). However, when connected to an hdmi monitor/tv I can play sound ...
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1answer
399 views

Arch linux - sound disappeared after the installation of pulseaudio

I'm using Arch linux with the above onboard sound card : 00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01) Subsystem: Dell Device 0220 Flags: ...
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1answer
98 views

How do I make ALSA upmix 2.0 to 2.1?

For ages, I have been tinkering with ALSA and for an equally long time, I have been frustrated by the rather opaque configuration system it uses. It is really powerful, no doubt, but getting what I ...
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1answer
456 views

tidal-hifi playback with alsa stops after every song

I am using tidal hifi for music streaming under linux (Mint 17, 64bit) with Chrome. To achieve bit perfect playback I turn off pulseaudio ($killall pulseaudio) to purely use alsa for audio processing ...
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1answer
164 views

ALSA output to two dmix devices simultaneously using a multi device

I am trying to play audio to two hardware devices simultaneously, megalodon and analog, using two dmix devices. megalodon is a USB headset, analog is just the 3.5mm port on my computer. When I route ...
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1answer
206 views

Amplify alsa capture beyond 100%?

I'm using ALSA. The volume of my mic is so low that even 100% of capture volume is not enough in a skype conversation. Is there any way to amplify the capture volume beyond 100%? I cannot use ...
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1answer
90 views

alsa gives error when run via su

I have a script that starts my application ./run_se and it works just fine. But I want to start it at system boot, so in after.boot, I have su artisan -c "/home/artisan/run_se" but this errors ...
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1answer
56 views

I have to pull the connector out partly to get stereo sound

Using headphones, I have to pull the headphone jack partly out of the socket to get stereo sound. If I push it in all the way, only the right channel comes through. I'm assuming that this has to do ...
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0answers
29 views

No onboard Asus M4A87TD EVO sound

I have an Asus M4A87TD EVO motherboard that once put sound out through the board, but now will only allow that while in win 7 64bit. My frustration is that Debian wheezy USED to do this, but now it ...
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0answers
40 views

pulseaudio pavucontrol: Missing “ALSA capture from” in gui

I am trying to redict sound output to fake microfone, but I got stuck in pavucontrol. After trying 3 tutorials, I gave up due to missing "ALSA Capture from" options. It should look like ...
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0answers
145 views

How to tell system wich USB-soundcard I want to have hw:2, if the two are “snd_usb_audio”?

I have a USB-soundcard (Encore ENMAB-8CM) and a Webcam with mic (Logitec c170). I want to use Jack with the USB-soundcard and, using alsa_in and jack_connect via scripts, to connect Webcam mic to ...
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0answers
113 views

Pulseaudio dont opens PCM device

I have IMX6Q based board and want game with pulseaudio. My board have 3 sound devices. # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: tlv320aic3xaudi [tlv320aic3x-audio], device 0: ...
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1answer
1k views

ALSA PulseAudio sound output when switching between headphones and laptop speaker

Since I installed PulseAudio on my Gentoo system I've been having no audio output from my laptop's speakers when un-plugging the headphones jack. I suppose the problem lies in how ALSA and PulseAudio ...
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2answers
495 views

AMD R9 270x HDMI audio not working correctly with ALSA. Works with PulseAudio. Is it possible to fix?

Some days ago I installed Fedora 22 on my media center pc. Previously I had Windows 8 installed because I wanted to play some games and watch some blurays, and everything worked as wanted. The HDMI ...
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3answers
5k views

Linux Mint and sound problems

I'm running into a no audio problem on the latest version of Linux Mint (Rebecca). I've uploaded the data to here for anyone to peruse, and hopefully find a solution to this problem: ...
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0answers
21 views

Strange noise with alsa-oss-emulation

I try to access the sound chip via ALSO OSS emulation on a ETX-BT-module (x64-CPU, x86-Kernel, vanilla kernel 3.10.10, busybox, Realtek ALC 262, 4-channel High Definition Audio integrated into SOC ...
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1answer
438 views

Linux ALSA Driver using channel count 3

Am running my ALSA Driver on Ubuntu 14.04, 64bit, 3.16.0-30-generic Kernel. Hardware is proprietary hardware, hence cant give much details. Following is the existing driver implementation: Driver ...
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4answers
19k views

linux arecord: capture sound card output rather than microphone input

I am trying to capture sound card output and encode it in Vorbis ogg format using the following command: arecord -f cd -t raw | oggenc - -r -o file.ogg However, the computer's microphone input is ...
2
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1answer
1k views

No sound on Arch Linux (ALSA)

Output of aplay -l aplay: device_list:268: no soundcards found... output of sudo aplay -l **** *List of PLAYBACK Hardware Devices* **** card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog ...
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0answers
175 views

Can't set sample rate to 44100 Hz when using loopback in ALSA

I have set up ALSA like this to play to and record from loopback devices: # output device pcm.loopout { type dmix ipc_key 328211 slave { pcm "hw:Loopback,0,0" period_size 1024 ...
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1answer
7k views

Force downmix to mono on Linux

For personal reasons (I'm hearing impaired) I need my linux machine to produce mono downmixed sound. Downmixed, not just single channel. Is there any possibility to force such behavior in ALSA / ...
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1answer
344 views

5.1 Surround sound will not keep its configuration

in pavucontrol I have my output set to Digital Surround 5.1(IEC958/AC3) When I open a video with VLC (my preferred option) OR GNOME Media player I hear no sound. VLC is configured to use pulseaudio ...
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1answer
74 views

How can two applications read from the same (digital) sound input in Linux/ALSA?

I have a sound card with an AES/EBU input port that I want to access with two applications simultaneously. I want to record the input to a linear WAV file in real-time while also streaming it through ...
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1answer
493 views

linux mint VIA sound issue

So I installed linux Mint 15 "Olivia" 64 bit on my Mecer W550EU laptop I have HD Audio with a VIA chipset charles-W55xEU charles # lsmod | grep snd snd_hda_codec_hdmi 36913 1 snd_hda_codec_via ...
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1answer
235 views

Create custom PCM device in ALSA

How can I create custom PCM device with dmix-slave and use it in audacious without touching global PCM? Is it even possible? I tried miscellaneous configurations but no luck. ALSA asound.conf syntax ...
12
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4answers
9k views

Skype 4.3 without PulseAudio, only ALSA. Any options?

I have been using Skype for over 10 years now, almost since the initial release, and most of my friends/family/colleagues use it too. So switching IM is not an option. Microsoft has recently changed ...
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1answer
175 views

Korora laptop / Trisquel 7 audio not working

I have Trisquel 7 netinstall installed on a ThinkPenguin Korora laptop. nik@Penguin-Korora:~$ lspci|grep Audio 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09) 00:1b.0 ...