-1
votes
0answers
5 views

How can I make programs use seperate audio outputs in ALSA?

I am trying to configure ALSA to have one program use the main audio out while the rest of the os ports out of the surround.
0
votes
0answers
7 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 ...
0
votes
1answer
59 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 ...
0
votes
0answers
11 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 ...
1
vote
1answer
23 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 ...
1
vote
1answer
41 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 ...
0
votes
0answers
322 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 ...
0
votes
0answers
23 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 ...
0
votes
0answers
64 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 ...
0
votes
0answers
146 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 ...
0
votes
1answer
28 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 ...
1
vote
2answers
133 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 ...
0
votes
0answers
148 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 ...
0
votes
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!
1
vote
1answer
342 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 ...
1
vote
0answers
32 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 ...
0
votes
1answer
106 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 ...
1
vote
1answer
195 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 ...
0
votes
0answers
87 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 ...
2
votes
0answers
348 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 ...
1
vote
1answer
123 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 ...
1
vote
1answer
176 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 ...
2
votes
0answers
277 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 ...
1
vote
0answers
91 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 ...
1
vote
1answer
889 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 ...
1
vote
3answers
8k 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 ...
6
votes
1answer
1k 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) ...
1
vote
3answers
427 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 ...
1
vote
3answers
1k 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 ...
9
votes
0answers
412 views

How is pulseaudio stitched together? [closed]

OK. Pre-post note; this became ugly long, - but the core of an problem is that I'm unable to find good articles or diagrams and explanations on this. There is a lot of "how too"s, but I'm having a ...
0
votes
2answers
359 views

alsa minimal configuration

I'm studying ALSA and I'm stuck with this alsa.conf file I need the most simplest conf file which can get my /dev/snd/controlC0 to work all my conf files (empty confs or some try with pcm.defaults ...
12
votes
1answer
752 views

Linux - Creating Virtual Audio Device

My question here is rather simple. How does one create a purely virtual audio device in ALSA that would be capable of: being used as an audio output destination, being used as an audio input source, ...
1
vote
0answers
251 views

alsaloop: What happens on a buffer underrun?

I am tuning my sound interface latency with alsaloop -C hw:1,0 -P hw:1,0 -t $LATENCY_US When I set $LATENCY_US to 30000, I get around 20% CPU usage. I can restart this a few times and make some ...
0
votes
1answer
18 views

anyway to take a 'snapshot' of alsamixer?

my audio card has some issues under ubuntu. everytime i fiddle with the volume, it messes up microphone. i can't set the microphone at all under ubuntu GUI. it tries to assume things from the ...
0
votes
1answer
780 views

VLC through a custom ALSA device

How can I make VLC playing through some of my custom ALSA devices? I created several custom ALSA devices (for routing, amplifying, mixing and other purposes) and can use them with Mplayer without any ...
0
votes
2answers
443 views

Alsa/PulseAudio mixing output from multiple processes

I wonder is it possible to rig alsa or/and pulseaudio so that audio output to left stereo channel will come form one process and to the right channel from another process?
-1
votes
2answers
852 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 ...
1
vote
1answer
2k views

How to address an alsa “mixer_device” in mpd config for a second sound card?

I run mpd on a system with a built in sound card and a second card that I plugged in via USB. Adressing the second sound card in the mpd.conf was easy: change: device "hw:0:0" to device "hw:1" ...
2
votes
0answers
276 views

How do I use wine's new multi-channel audio support?

Wine supposedly added Multi-channel support to the ALSA driver in a recent release. However, I haven't found any documentation about it or any reports of anyone successfully using it. I have 5.1 ...
1
vote
1answer
879 views

ALSA does not find sound devices as user but can as root after kernel upgrade

Using Archlinux with x86_64 after kernel upgrade to 3.5.3-1, there is no sound, and ALSA run as user shows no sound devices. The proper kernel modules are loaded, and both dmesg.log and lspci show ...
1
vote
2answers
1k views

Why can't I play audio from two or more sources?

When I installed on my desktop mpd and mpc, I found that I can't hear other sources (like Amarok, Flash player etc.) at the time when mpc or other client is playing music. If I try to start an audio ...
3
votes
1answer
3k views

How to listen to microphone output on Linux?

I would like to hear the microphone output during Skype calls. I have tried fiddling with alsamixer settings and made sure that the mike is unmuted but still cannot get to hear the mike in either ...
1
vote
1answer
880 views

How to mix S/PDIF input and PCM Out (to hear PCM and S/PDIF simultaneously) in Linux?

In alsamixer I can select either PCM Out or IEC958 In (that's my S/PDIF input) but not both. Is there a solution? Note: I need stereo sound, so selecting IEC958 In for one channel, and PCM Out for ...
3
votes
3answers
2k views

Pipe System sound to another computer

i have no speakers in my PC(Cent-OS 5.5) but there is a stereo speaker connected to the computer next to my Computer(Cent-OS 5.5). Both computers are networked. Is there any way to pipe my system ...
3
votes
1answer
1k views

Change volume from bash

I got this far (from .bashrc): alias i="amixer -c 0 -- sset Master playback +1dB" alias d="amixer -c 0 -- sset Master playback -1dB" alias v4="amixer -c 0 -- sset Master playback 40%" alias ...
1
vote
0answers
1k views

Volume / gain too high with ALSA under Debian for an USB sound card

I encounter some issues configuring audio with ALSA on my Seagate Dockstar on which I plugged a little USB audio card. I'm able to play music with MOC but I'm stuck with a volume way to high. ...
2
votes
2answers
2k views

Ubuntu and XFCE: unmute sound

I've installed XFCE for Ubuntu and use it as my default X session. After this change some sound problems appeared: I can mute sound with alsamixer or with hotkey on a keyboard. But just reenable it ...
0
votes
1answer
217 views

Digital audio doesn't work under Linux

$ uname -a Linux nbb 3.2.1-2-ARCH #1 SMP PREEMPT Mon Jan 23 12:40:01 UTC 2012 x86_64 Intel(R) Xeon(R) CPU W3520 @ 2.67GHz GenuineIntel GNU/Linux I have an Intel ADA198x HD Audio interface (I believe ...
1
vote
2answers
10k views

Archlinux sound not working

I installed Archlinux recently. I have instaled flash, vlc, alsa-utis. But there is no sound. I tried un-muting using alsamixer but there are no difference. Can you please let me know how to fix this ...
3
votes
2answers
2k views

Does Linux support audio output via USB?

Several small integrated amplifiers exist with a USB input line. The ones I have seen so far ship with Windows and OS X drivers. Does Linux support audio output via USB out-of-the-box? Update It ...