Ubuntu Multimedia :: One Sound Card For Multiple / Simultaneous Uses
Nov 5, 2010
I work for a company that uses Ubuntu exclusively. Without going too much into detail, we need a single sound-card to do up to 3 things at one time. What I mean by this, basically, is that there needs to be 3 instances listening to a card's line-in port at any one time. For example (these are made-up), Audacity listening to the line-in jack and making a recording of what it hears, a custom script that streams the input to the internet, and a third instance that listens to this input and runs different scripts based on what it hears.
Currently, our company sends out machines with 3 sound cards to do this. One card for each job. Of course, we'd like to save money and only send out one. Whenever we try to set all 3 programs to run off of one card, they error out and say something along the lines of "device already in use". Is there a way to go around this? If so, how? We use the command-line version of Ubuntu 8.04. It is NOT x64. The hardware may vary a bit, but is for the most part, consistent. (We order in batches of 50.)
I really hope someone could help me with this problem. I've been stuck on this for a month.I am using the sftp command to upload files using a bash script.The problem is that it is extremely slow to do it this way. as many of you would know if you have shared server somewhere. I would use scp if remote server supported it, but it doesn't.
Anyway, If any of you have ever used FileZilla, in the Settings, if you go to "Transfers" there is a place where you can set the number of "maximum simultaneous transfers". This feature works wonders with SFTP (and FTP too). It really speeds things up. How do I accomplish this same thing with the sftp command... because I don't want to use a GUI. I don't even mind using FileZilla through the command line if possible... but it does not seem to be possible. I've been stuck on this for a month!!! I've searched everywhere and tried a lot of things with no avail...
As the title says, I'm interested in two (or more) simultaneous keyboards, each with a unique layout. Everything I've researched indicates this should be possible, but I'm unable to get it to work. Regardless of how I set things up, all keyboards consistently operate as if they share the CoreDevice setting in xorg.conf. In the above config, both keyboards behave as if they're set for the USA layout. Changing the layout in gnome-keyboard-properties affects all of the connected keyboards equally, but has no provision for altering individual devices.
Each day I need to copy N files from a source location to a mirror at a specific time (where N is very large). Let's say I tell multiple CPUs to each run an rsync simultaneously on a subset of the files (network and disk bandwidth are not an issue). Ideally each CPU would be responsible for a disjoint subset of the N files, but in practice this is sometimes hard to guarantee. (Some of the source files might be "claimed" by more than one CPU.) As a result, sometimes rsync I and rsync J will both try to copy file F at the same time.
Using rsync -avz --delete --temp-dir=/tmp remote:/path/to/source/ /path/to/dest/, let's say rsyncs I and J both see this situation to start:
[Code]...
Now rsync J finishes copying but generates an error when it tries to move its version of FileB to /path/to/dest/ because there's already another FileB there that it didn't see when it started.
Does one of rsync's many options somehow handle this situation? Ideally I'd like an option that tells rsync, "Believe in yourself. You can do no wrong. Feel free to overwrite anything your little heart desires." so that it wouldn't complain about the FileB that has suddenly appeared mid-execution
How can I configure a single computer to work for multiple simultaneous users? I would like to have multiple keyboards and monitors on a single PC ... Is it possible? This set up I'm planning for CyberCafe, For cyberCafe business ROI is very slow... so was planning to have something like this....
-single CPU (Which would act as a server) -Multiple monitors, keyboards, Headphones etc....
If this works out then I would save a lot on my investments (OS cost, Hardware devices, electricity etc)
I have an M-Audio Delta 44 sound card, and a USB MIDIinterface device, both are recognized, and work. My problem is as each are seen by alsa as sound cards, sometimes the alsa card numbers switch between boots. Is there a way to set these devices to always have the same card number for alsa
I have been using Ubuntu as my main OS on my desktops for a couple of years now. Started off with a HP with a Creative Labs XiFi soundcard, but am now using a Dell with a Creative Labs Audigy. Sound worked perfectly on the Dell since a clean install (about 7 months ago). I turned it on a week or so ago, and no sound! Even the little sound indicator in the notification area has gone.
I am setting up a mythtv/xmbc box on Ubuntu 10.10 (natty does not install on my hardware). I have a Sabrent TV PCIRC tuner card, which seems to work fine with the proper card and tuner settings. My on-board sound is HDA-Intel surround sound, which I have configured as analog duplex.
Currently the sound works fine through my speakers plugged into any jack on the back of the PC (two speakers, one jack). I can watch ripped movies and listen to music. The TV tuner is pumping sound from its external jack -- if I hook it up directly to the speakers it works fine. I can feed the Tuner's sound to the line-in on my motherboard, but nothing comes out. In the sound manager, i have the input device selected and the input level shows that the sound is coming in through the connector, and I can test the speakers and they work fine, but they don't seem to be communicating that the sound coming in needs to be pumped out through the speakers.
I have installed xubuntu version 10. My sound card is a Yamaha dS-1S, and seems to be properly configured. Alsa mixer doesn't indicates any error. However, I can't manage to get any sound. I have checked that jacks are correctly plugged.
how can I play audio (Mythtv - Play Music) simultaneously on two sound cards using ALSA drivers. I have two cards working well. One card is an onboard Intel cards, and the other card is a USB Audio card. Both cards are working well. I use the onboard Intel to output SPDIF to an amplified. The second USB card is bound to MPD service and it outputs an analog signal to a second amplified. I'd like to have the following configuration: Play to the default card with 5.1 passthrough, while the second card, connected to a second amplifier, plays an analog signal to the same audio played by Mythtv Play Music. In other words, I need to mix somehow and play the same audio on both cards.
Here is the list of cards:
root@mythtv:~# aplay -L null Discard all samples (playback) or generate zero samples (capture)
I have suse 11.4 installed and I wish to replace the on-board sound chip with an add-on sound card. The following are available at my local shop but they cannot advise whether any will work on Linux Suse 11.4.
Anyone know which of these cards will work on Suse 11.4?
Sound Blaster X-Fi Titanium HD Sound Blaster X-Fi Xtreme Audio Asus Xonar DS
I encountered this on a 10.3 system but there might be similar problem with the 11 series. Having gone through the business of obtaining config info on this card via pnpdump and subsequently using Yast to configure and install it, I encountered a situation whereby the card was fully functional as far as the "Test Sound" option of Yast was concerned. However, after a reboot, it was not loaded and no sound was possible. Debugging the "alsasound" script, I discovered that the directory /proc/asound was not in place at that time and, therefore, sound was not started.
The solution was to add the module name (snd_sbawe) to /etc/sysconfig/kernel to the parameter "MODULES_LOADED_ON_BOOT". Seems like Yast did not see a reason to do this itself.
I have decided to move my laptop over to openSUSE after a terrible experience with Vista. I have some experience with Ubuntu on a desktop, but I'm a brand new suse user. I installed 11.3 but haven't been able to get any sound out of it.
The laptop is a Compaq Presario CQ45-307tx (more specs at link below) Product Specifications Compaq Presario CQ45-307TX Notebook PC - HP Customer Care (Brazil - English)
Here is the ALSA support url per the instructions in the multimedia sticky [url]
Ok, for various (mostly security) reasons I was experimenting in running certain apps as a different user id (on Karmic).
I can get X to forward to my main session without a problem but I cannot get the sound to work. Sound works fine in my main session, but when I run sound as another user I get plenty of errors like:
PHP Code:
ALSA lib pcm_dmix.c:1008:(snd_pcm_dmix_open) unable to open slave
I am not a big linux GUI person, so I have rarely dealt with sound systems under Linux. What is the simplest way to get this to work in a relatively secure way? (I do realize that my security is already a bit compromised by allowing the secondary user access to X, but that can't be helped)
I've got two soundcards in my new machine - Realtek ALC8892 onboard, with headphones plugged in, and an M-Audio Audiophile 192 with speakers. There's also HDMI sound out on the graphics card, but I don't use that.
Audio with PulseAudio's output through the sound card is fine. Audio with PulseAudio's output through the onboard sound is fine. If I set the output to Simultaneous Output, however, I get significant lag. Almost half a second. It's quite distracting.
Is this just a problem with PulseAudio's simultaneous output implementation, or is there a fix that I've overlooked? Running 64-bit Natty, btw.
I'm trying to launch CoverGloobus (a fantastic little album art and current song display) and Rhythmbox simultaneously through a BASH script. Problem is that when I attempt to run the script the first time, CoverGloobus doesn't launch, but Rhythmbox does. Here's my script as it is right now:
Code:
#! /bin/bash #Opens Rhythmbox and CoverGloobus rhythmbox && covergloobus done
I've double-checked the commands in gnome-terminal, and they're the right ones for launching the applications. Here's where it gets odd, though. The second time I run the script, CoverGloobus and Rhythmbox launch simultaneously. I've reproduced this scenario multiple times.
sat in an internet cafe with my music on loud using my headphones when my cell phone vibrated and upon taking off my headphones I noticed that pulseaudio was channeling all my music not only to my headphones but also to my regular monitor out!
So I was actually listening to music using my headphones when in fact the sound was LOUD on my laptop speakers...
Is there a way to configure the thing to not do that? I want the sound to be muted as soon as I plug in my headphones.
i am using ubuntu 10.04 lts "lucid lynx", and has been encountering problems with audio recently.
i found out for some reason that my system fails to produce sound through pulseaudio, especially when an application is using it (e.g audacious).
the details of the problem:
1. i am using the pulseaudio equalizer from the repository, and i set a program (e.g. audacious) to use pulseaudio so that i can activate the equalizer.
2. while playing, all of my other applications lose the ability to produce any sound, and changing back to alsa during playback (which is using pulseaudio) in audacious indicates that the device is busy. examples include the loss of sound while playing a video from videos.
rough breakdown of what i want to (be able to) do: have sound for all applications using it, for example being able to play a video in videos from my browser and play music in audacious simultaneously.
is there a workaround for this? i'd like to think that there is, but so far my search returned nil.
When I had UBUNTU 10.04 sound WORKED!I have post several threads about this issue, I hope this would be the last one, My OS version is Ubuntu 11.04, my hardware is: Nvidia GTS 450 video Card EGS; and an integrated sound card reference: Via Azalia HDAC VT1708/A; After installing ubuntu I had no audio through my integrated sound card, I cant use my NVidia HDA card because I need for it an HDMI AUDIO, and I dont have any HDMI sound devices like dvd or TV. So I need to use my integrated default Via soundcard. I Updated the OS, nothing changed. After typing aplay -l it showed this:
I just want to know from an out of the box no configuration experience what's the most compatible, hassle free sound card that you can purchase from newegg?I'm building a new AMD type system w/ an 890GX chipset and this is the last component of my build that needs to be verified.
I'd like to buy a sound card for Ubuntu 10.04 x86-64 (or well supported on Linux anyway).Range price from 10 to 60 GBP.I don't need nothing extremely serious, but my USB mic+phones is not working properly and integrated sound card has rubbish in (basically all noisy).
I am running Ubuntu 10.04 with an Intel 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller, and no sound output. I have both pulseaudio and ALSA installed. I have already checked with
Code: alsamixer that my sound isnt muted and aplay -l outputs this Code: xxxx@xxxx-ubuntu:~$ aplay -l
I know there are heaps of sound problem threads around here, and I've been through them all and I still can't my sound to work.I have the motherboards onboard audio which works perfectly when I plug in speakers.I want to use my Creative Xfi xtreme audio. When I select it as the output for my sound, it freezes my audio players and firefox when I try.I don't know what the following means, but this is what ople need from other threads.tim@ubuntu:~$ uname -aLinux ubuntu 2.6.32-22-generic #36-Ubuntu SMP Thu Jun 3 22:02:19 UTC 2010 i686 GNU/Linux
tim@ubuntu:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC889A Analog [ALC889A Analog]
I am attempting to get ubuntu working on my system.I have tried on previous systems without success, hopefully it works out this time.Currently my only major issue with it is I cannot get any sounds to play.I use a Logitech G35 usb headset and onboard audio (GIGABYTE GA-890GPA-UD3H motherboard, Realtek ALC892 audio chipset).Ideally, I'd like to be able to listen from either source, though just getting one working would be great.Ubuntu is currently not detecting any sound.
Using aplay -l, it said no sound card found. Using lspci -v, so sound devices were listed.I am a complete noob to ubuntu, I had to research to figure out what to do with 'aplay -l' (Application -> Accessories -> Terminal, type command in terminal). My Windows troubleshooting skills seem largely useless in a Linux environment.
My laptop is Sony VAIO. I installed ubuntu. However i dnt get sound. My sound card is not working i think. How can i install my sound card here in ubuntu.
