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

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save alsamixer input source centos 6

I am not able to save the input source of my alsamixer. Every time I reboot the system the input source is set back to front mic. I want it to stay as rear mic. I tried alsactl store I disabled ...
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3answers
616 views

Skype 4.3 without PulseAudio. 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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25 views

How can I make my laptop mic only output the left audio track?

For some reason when my laptop (lenovo u510) records audio with both audio tracks enabled, it doesn't produce any sound. I've found that muting the right audio track solves this issue, but whenever I ...
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1answer
74 views

Alsa hardware volume with PulseAudio

Before installing pulseaudio, I was able to control volume for the front (meaning on the front panel, the "headphone" jack) and rear (meaning on the back panel, the "line out" jack) separately. When ...
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119 views

No sound in headphone jack

Worked fine a week ago. Yesterday when I plugged headphones into my Asus laptop, I got sound both from headphones and speakers. Today after system crash (not sure what was the reason) when I plug ...
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65 views

Pulseaudio shared library error in Ubuntu

In Ubuntu 12.04 I get the following, whenever I try to use pulseaudio (e.g. when typing pulseaudio --version) /usr/bin/pulseaudio: error while loading shared libraries: libpulsecommon-1.1.so: cannot ...
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19 views

ALSA upmixing/processing conditionally from different numbers of input channels

After a lot of research and experimentation, I was able to get ALSA to upmix stereo to 5.1 surround sound the way I want it. However, my problem is now that I can't properly play mono sources (the ...
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1answer
166 views

How to create fake sound card on Ubuntu Server 12.04

I want to run 'blender --background --python script.py' on my Ubuntu Server which does not physically have any sound equipment. It turns out that blender requires sound card. I see following error ...
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17 views

ALSA from output to input

I need to translate sound from my VLC player right into my microphone input. Maybe I should create some virtual device and.. I don't know what to do.. and my english is not good so it's a real problem ...
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1answer
77 views

Sound does not work on X-server, works in TTY, Arch Linux w/ALSA

My sound system isn't working when I use the X server. When I use it in a TTY, it works fine. In a TTY, the output of aplay -l: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA ...
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1answer
83 views

How to use synchronous endpoint of USB audio device?

I want to play the same sound over several USB audio devices in sync. Last time I tried something like this was about 2001 and it was successful -- and the pair of Griffin iMics I used back then still ...
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1answer
489 views

No sound after updating alsa

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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939 views

Switch default HDMI device in Ubuntu

When I connect my pc to a TV using HDMI cable I don't get audio over HDMI. PulseAudio Volume Control detects the HDMI audi output as unolugged. aplay -l lists the following: **** List of PLAYBACK ...
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602 views

After updating archlinux, the maximum volume is far too low

I booted my Archlinux PC today and opened Mumble, and found that I couldn't hear anyone, so I opened some music and I couldn't hear that. After turning my volume to the maximum possible level in ...
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0answers
17 views

Default bluetooth device not allow to record from another device

I have already set the bluetooth device as default device for recording the audio. But I have add the another usb audio device for recording, the bluetooth device not allow the usb device to record ...
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34 views

ALSA access to multichannel audio card instead of jackd

I have a HDSP9652 multichannel audio card connected to two ferrofish A16 ADAT-to-analog audio breakout boxes, all this is running headless under Ubuntu 13.10, Linux kernel 3.11. Using jackd 0.122, I ...
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0answers
105 views

Using 5.1 surround to play back 3 independent stereo streams

I built a small home server recently. It runs Ubuntu Server 12.04 and has a sound card (Via VT1708) with 3 audio jacks - which I want to use as 3 independent stereo outputs to play back (potentially ...
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30 views

Temporarily disable ALSA soundcard (mic)

I have a Linux application where I'd like to temporarily disable audio input from a specific device. Is this possible to do somehow? The system is running Alsa & pulseaudio. Ideally it I'd like ...
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252 views

Gigabyte Brix TOSLINK/SPDIF with Archlinux

I tried setting up the combo analog/digital out on this little box with the help of this adapter, but I can't get it to output anything digital... aplay -l tells me that card 1 device 1 is "ALC269VC ...
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1answer
39 views

Automatically switch on speakers when there are Alsa clients

I want to connect a relay to one of the GPIOs of my Raspberry Pi. This relay supplies power to the speakers. I would like my speakers to be on only when there is sound activity. I am looking for ...
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2answers
216 views

Turning speaker beep off by alsamixer permanently

Debian 7, x64. I can turn off the beep by reducing Speaker bar volume in alsamixer to 0. However, after reboot speaker volume in alsamixer is set to 100% again. How can I turn off speker beep ...
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364 views

How can I use a virtual sound card without the hardware?

I'm trying to generate and stream audio+video via aconv to a remote location such as Youtube from a headless linux server, which will then be multicasted out to the internet at large. I have ...
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0answers
31 views

How can I set setup an audiodelay for the complete audio output in linux?

Can someone tell me how I can setup a delay (0.1s - 0.5s) on the complete audio output on my raspberry pi? I am running the Raspyfi Distro and it's using the alsa sound driver. Thank you very much!
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1answer
559 views

ALSA “dmix plugin supports only playback stream” error when using dmix on beagleboard

On a Beagleboard, I need it to play sound from several processes. The default /etc/asound.conf is empty, so I put this dmix example in. Now sund mixes fine, but when I'm trying to run a process that ...
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35 views

on pin configuration in ALSA

I seek explanation for a strange behavior: as my codec dump can testify, I have speakers on pin 0x14 and HP on 0x15 (and, possibly, ext MIC at 0x18 and int MIC at 0x19), then why does the command ...
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314 views

Record Audio From USB device using FFmpeg

I am trying to record an MP3 file from an audio device connected to the USB port using ffmpeg. I am on a Windows 7 machine, and I am trying to do this from a command line: ffmpeg -f alsa -i hw:0 -ac ...
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35 views

Java Exclusive MIDI usage workaround?

I'm using a java applet, Jalmus to be specific, that implements MIDI usage. Whenever Jalmus is running, MIDI Input works (Midi Out doesn't but I don't need that) however, when attempting to connect ...
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1answer
182 views

No sound from headphones. Ubuntu on iMac

I have a fresh ubuntu on iMac. I have managed to set up the sound from the native speakers, however, there is still no sound from the headphones. I have disabled automute in alsamixer, but this didn't ...
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177 views

Virtual ALSA Device for redirecting Output to physical input

I am trying this for over 10 days now, several hours a day. i have a ubuntu 12.04 server box, no x-server. on this machine runs a ruby application, and a C application, both bought from an external ...
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1answer
264 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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97 views

What's the proper way to forward audio from i386 executables that use ALSA to an x64 pulse server?

I'm running Kubuntu Raring x64, and I had a program that I was unable to compile under my 64-bit environment but there was an already compiled version (32-bit) available for download (specifically ...
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0answers
481 views

No sound output or hardware to choose from in gnome sound settings

There is no sound output when I try to play music or videos etc. When I run $ speaker-test I get speaker-test 1.0.25 Playback device is default Stream parameters are 48000Hz, S16_LE, 1 ...
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2answers
843 views

Playing mp3 in quodlibet displays “GStreamer output pipeline could not be initialized” error

I'm running Debian testing x64 with all updates. I install quodlibet 2.4 from the repository and added mp3's to my library. When I play them, however, I receive an output error: GStreamer output ...
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1answer
142 views

Set up a virtual capture device using ALSA

I am looking to set up a radio stream on my local network using a Linux box with ALSA. My first idea was to just have it capture the sound output, but this can be annoying for several reasons. (For ...
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1answer
222 views

Using loopbacks and null-sink cause extreme distortion after 20-30s during ffmpeg recording

I'm trying to record both video, speaker sounds and microphone sounds at the same time. To deal with the audio, I set up two loopbacks (one for microphone, one for speakers): pactl load-module ...
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1answer
470 views

Microphone not working on Apple Macbook Air 1,1 (Early 2008; A1237) under Linux

I'm running Linux on the MBA. I can't make the microphone work. I test using alsamixer and arecord -Dhw -fdat -vv mic.wav together with aplay -Dhw -vv mic.wav It seems there is a problem with Linux ...
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1answer
915 views

Alsamixer won't work with bluetooth device

I'm running Debian unstable. My .asoundrc looks like this: pcm.btheadset { type plug slave { pcm { type bluetooth device 5A:5A:5A:A6:08:09 profile ...
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0answers
393 views

Linux noob trying to get headset to work

I am trying to get my headset (Logitech H390) to work on a new linux installation (centos 6.4). Unfortunately I am unable to hear anything from the headset. I have tried several options from the sound ...
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2answers
5k 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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169 views

Record line-in audio from two applications using Alsa

Im currently working on an small application which runs on a cubieboard (ARMv7, rasp-pi-like). What I really need to do is, accessing and recording the line-in audio-signal from two different ...
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1answer
1k views

No sound on Debian 7 stable

I have Debian 7.1. Today I have lost an ability to listening to music. I can hear sound played by speaker-test, mplayer and some applications sound (eg. Skype sound notifications). But I have problems ...
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56 views

ALSA - Codec Registration

My Codec is registered after SOC init is done. In SOC init, ALSA cannot find codec registered and hence defer the sound card registration. Later when I register codec, its entry is not registered in ...
2
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1answer
132 views

Reconfigure line-in as analog-out

I am trying to reconfigure my "line in" as another "analog out" and use it alongside with the default analog out port. I am using an onboard realtek sound card. It is very simple to do this in ...
2
votes
3answers
10k 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 ...
7
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1answer
2k views

Prevent applications to control master volume on Linux

Whenever I change the volume in VLC, Rhythmbox, or a video on YouTube, it change the master volume, i.e. the system volume. How can I prevent this from happening? I'm running Debian 7.0.0 (wheezy) ...
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1answer
308 views

Recording using arecord creates thousands of files

I was trying to use arecord to record a wav file, but instead of recording to one file, it created tens of thousands of files (around 60000). This happened after I had installed the alsaequal package. ...
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2answers
100 views

aoss is preventing file logging - logging argument commands

I am using an application which requires aoss. The results are required to be appended to a file. When I write these commands, the file is always empty: aoss multimon -a DTMF | tee test.txt aoss ...
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3answers
530 views

How do I get a volume OSD just like the one in OSX?

I'm using a Dell Studio laptop which has volume up/down hotkeys. On pressing these, I want a volume OSD to popup to show my current volume status just like in OSX; that is, just like: Anybody know ...
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3answers
2k views

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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539 views

ALSA buffer xrun when recording with ffmpeg

Is there any way to increase the ALSA buffer size? When running this command: ffmpeg -f alsa -ac 2 -i hw:1 -ar 44100 -b 64k output.mp3 I get a "ALSA buffer xrun" before my system locks up Input ...