OpenSUSE Multimedia :: How To Specify Capture Audio Device In VLC
Jun 1, 2011
I need to capture from my webcam. It has a mic too.I can specify video input device as /dev/video0.I specified input audio device as /dev/dsp2 ( OSS device, corresponding to USB Webcam), Now VLC throws an error, "VLC is unable to open the MRL 'alsa:///dev/dsp2'. Check the log for details".Thinking it wants an alsa device, I specify device as /dev/snd/pcmC2D0c. (got it from kinfocenter and dolphin). Now again an error, "VLC is unable to open the MRL 'alsa:///dev/snd/pcmC2D0c'. Check the log for details.".I try with any device, the same error. I have added myself to audio device so that I can read/write to the mentioned devices.I see no way of switching VLC to use OSS. And I see no information (documentation on net) on it's expected device listing for audio.
I recently installed openSUSE 11.4-64bit on my Gateway desktop, and I can't seem to get my mic work at all. The mic is built into my Microsoft LifeCam Cinema webcam and works fine when I boot into Windows. The mic will not record sound in krecord or lame and doesn't work during Skype sessions.
According to the literature for the device driver my the mic should be supported, and that is evidenced by the fact that the mic shows up as a capture device in in kmix. I have made this mic the master channel under capture devices and I have given it highest preference amongst my capture devices in both the Communications and Accessibility categories of kmix's Settings/Audio Setup.
There was a very similar case solved in January:
How I got my Sound Input working
I've done my best to implement these fixes, but half of it looks like gibberish to me. All I was really able to do was update my alsa software and generate this comprehensive alsa.conf (its long, so I'll wait to post it until asked).
I've had since updating to 11.4, and I gotta say: I've been really impressed so far.
I'm trying to capture my desktop screen and audio , before I used xvidcap but after upgrading my system I can not use it and also recordmydesktop anymore these APPs hanged when I try to use them.Now I try to use recorditnow via ffmpeg recorder interface , it work properly in recording the desktop but it does not record the sound , so I tried to add below options to its command -f alsa -ac 2 -i hw:0,0 but it just record sound at the beginning and just for 1 second. Also when I try to capture my desktop with ffmpeg directly from command line with below command I face with same problem!!! ffmpeg -f x11grab -s 1024X768 -r 30 -i :0.0 -f alsa -ac 2 -i hw:0,0 ~/out.mpg
I have two sound devices, an internal audio device on my motherboard and an external USB devices, which came with my headset. After upgrading to 11.4, the microphone on my headset ceased to work with my softphone. As it turned out, the softphone used the standard input device, which was defined in the Phonon tab in the KDE System Settings. Unfortunately, when I put the USB Device on top of the default input stack, it doesn't stay there. When I apply the changes and leave the Phonon tab or even enable "Show advanced devices " the stack always resets to its initial order. I was unable to find any kind of config file where Phonon saves this settings.
I'm using openSUSE 11.2 KDE on a Fujitsu-Siemens Amilo Pi 1536 laptop. My problem is that my microphone (I'm attempting to use a 3.5mm headset) doesn't work. Audio playback however does work through the built-in speakers and headphones.
I have gone through the SDB:AudioTroubleshooting - openSUSE as suggested by oldcpu on the Welcome to multimedia sub-area sticky.
I have tested audio recording with
Code: arecord -vv -fdat foo.wav resulting in a silent recording. The vumeter showed 0% during the recording.
Here is my url produced by the alsa-info script:[URL]
So I got myself a USB capture card (EasyCap) to use for capturing gaming, digitizing my kids' old VHS movies, etc. It works fine, I've been using VLC to view and record stuff from it, but I've noticed one issue. When recording streams via VLC, even with no other programs running to give VLC as much CPU time as it wants, the audio slowly falls out of sync. I've tried the MP4 (H264/MP3) container and the OGG (Vorbis/Theora) container.
Early on you can't hardly tell, but the further into a movie you get the more out of sync the audio gets, so that by the end of the movie the audio is a good 1-2 seconds off. It's not a set amount either so I can't just split the audio to a separate file then shift it one direction or the other to make up for the difference, because like I said, the offset starts out at nothing and gets progressively larger as the movie goes on. When I select "display locally", the video/audio that is displayed stays in sync, only the video/audio that gets committed to the output file falls out of sync, and it doesn't matter if I play the file with Totem or VLC.
I want to record some streaming internet radio talk shows and music performances on NPR, and I'm wondering what my options are in Ubuntu. I'm looking for something that can output high quality lossless files in several formats, hopefully including mp3 and ogg.
I'm looking for configuring a Ubuntu box, we need to capture alsa output into ffmpeg with jack or OSS but not pulseaudio, as that tends to glitch badly. We have things working, but we are sort of hacking around in the dark, we play music, but as we aren't linux audio experts ourselves.
This plays fine in VLC, and there's a "Record" button there but I'm never prompted to save the recording anywhere. I wandered through preferences but didn't see any default capture directory fields.Where/how do I capture the stream for playback later? The docs that I've stumbled across so far are pretty outdated (but I'm still googling).
I have been trying to get tvtime or any tv package to work with my Pinnacle PCTV HD usb but I have not had success. I have correctly installed every driver imaginable. So, here is what it what it comes down to: When I open tvtime it says "cannot open capture device /dev/video0" and the screen is blue. But my usb PCTV HD stick is NOT /dev/video0 so the question is how can I get tvtime to look for the usb tv tuner rather than video0?
I'm trying to view the output of a dv firewire capture device (advc-100) fullscreen through vlc. I've read of people being able to do this but a detailed explanation of how eludes me.
I'm running Ubuntu 10.10 and VLC 1.1.4
The error message I'm given after trying to open through 'media>open capture device>play' is;
Quote:
Your input can't be opened: VLC is unable to open the MRL 'v4l2:///dev/ffc1/'. Check the log for details.
(and I can't find the log)
I'm not even sure if I've got the device name right so I ran lspci from the command line which gave the following output (and I still can't work out what it is);
I've made a lot of progress getting my easycap 2.0 usb capture device to work with ubuntu 10.10. I've got the picture up any everything works great. But about a minute into the stream it just freezes, I need to go into "playback" and either pause then play, or click "next", it then refreshes and works again for another minute or so. I'd believe it if someone says faulty hardware because the easycap is cheap, but I don't think that's the case. Additionally, is there any way to set VLC so that when I open it, it automatically opens with my video capture device (/dev/video0) so that I don't have to go into the options and change it every time?
In Ubuntu 9.10, I was successfully able to use my Pinnacle Dazzle DVC 100 (a cheap USB analog video capture device). I use it for backing up old video that is stored on tapes, and it isn't working with my current install of Ubuntu 10.04. When I plug the device in, it should be detected and the em28xx module should be loaded. This fails and /var/log/messages has the following:
Code: Sep 25 16:13:18 kernel: [1196215.111898] usb 2-2: new high speed USB device using ehci_hcd and address 20 Sep 25 16:13:18 kernel: [1196215.266097] usb 2-2: configuration #1 chosen from 1 choice
I have behringer UCA202 usb card, after plug to usb, it just works , I have only small problem with alsamixer, which still shows by default my integrated HDA Intel, I could switch it by F6 or by alsamixer -c 1no problem, but I expect that default card is now plugged "USB audio", so why alsamixer recognize default audio device as HDA intel and not a USB Audio ?anyone who has two or more sound cards with the same issue ?
I'm making an attempt to install drivers for my easycap dc60 USB video capture device. Someone was good enough to make a driver project on sourceforge. Problem is I cannot get it compiled.
Code: Building make[1]: Entering directory `/home/jan-bart/Download/easycap_dc60.0.4/src' make -C /usr/src/linux-headers-`uname -r` M=/home/jan-bart/Download/easycap_dc60.0.4/src modules make: Entering an unknown directory make: *** /usr/src/linux-headers-2.6.31.8-0.1-desktop: No such file or directory. Stop. make: Leaving an unknown directory
have an OpenSuSE 11.4 (Linux 2.6.37.6-0.5-desktop) with XBMC (10.1) installed.During installation of SuSE, I've created a user called "xbmc" and enabled autologin for this user. After XBMC have been installed I added the following to /home/xbmc/.xinitrc - "exec /usr/bin/ck-launch-session /usr/bin/dbus-launch --exit-with-session /usr/bin/xbmc --standalone -fs"... so far so good - everything is perfectly fine..... or at least almost - when trying to play some musik I get the message "Failed to initialize audio device, Check your Audio Settings"... but if I close XBMC, log in to Gnome as root, open a terminal an su to user "xbmc" and start xbmc from commandline it works if I choose "Internal Analog Audio" in System -> System -> Audio Output. Now the spooky/funny parts appears... I check the options in Audio Output I see the following:
With Autologin:
Defaults iec958 hdmi HDA Intel Defaults
[code]...
When returning to auto-login - it stops working again... By the way - to be sure that it wasn't a rights-problem, I ended up changing the UID for the "xbmc"-user to "0" to ensure root-privilegies
I am fed up of listening to my (Windows XP) gaming computer through headphones so I want to get it hooked to the stereo.
Rather than use a heck of a lot of wire, I can sit my Ubuntu 9.10 netbook on top of the stereo and stream the audio across WiFi.
So, ideally what I am after is something to capture the outgoing audio on the Windows computer, stream it across the wifi to the Ubuntu netbook and finally play it through the speakers.
No audio input device can be found in sound preference>input but in sound preference>hardware>it shows the input webcam recorder device.
When I use
Code: alsamixer
onto terminal it shows this
and also i checked cable device and everything. And it was working till I last hour. I rebooted computer then there's some problem, I haven't change anything before or after rebooting.
i am using ubuntu studio karmic and i have a digitech vx400 audio effects pedal which serves as an audio in/out midi in/out device via usb. i can sucessfully set it as the system sound device in system>preferences>sound for both input and output. but, when i play audio through it it only works for a few minutes before the sound stops completely. if i leave the system settings set to the internal sound card and configure jack audio connection kit to go to the usb device, i get the same results on the usb sound. a few minutes of playback at the most.i can restart sound with either "pulseaudio --kill && pulseaudio --start" or "alsactl init" in either situation. just requires restarting the programs. same results after restarting. i think this is alsa related as i have both the system sound and jack using the alsa driver, but i don't truly understand the relationship between pulseaudio and alsa.
When i turn on my computer and log in i get a notification that says "Phonon: KDE's Multimedia Library -- The audio playback device HDA Intel (ALC880 Analog) does not work." and the system falls back to pulse audio.
Also, i noticed that if i wake my computer from hibernation then the HDA Intel device will begin working again.
I read through the comprehensive sound guide with no luck, this behavior seems very strange to me and im not sure what is causing it. I would much rather use the HDA Intel sound device than Pulse Audio.
I use an echo indigo audio card. When I do aplay -l I see this card, and I can ouput audio through it by specifically telling mplayer to use this (alsa) device. Now I want to use this card as default for all audio. At the moment the default is pulseaudio through the built in soundcard. How can I change this? Im running Ubuntu 10.04.
I'm having here annoying "problem" with my webcamera. Everytime I want to use it as a microphone it needs to be switched manually in sound settings menu. It's not a big deal but I would really rather let it be switched automatically like plug and play or something like that.
I can get sound out of my machine just fine, but for some reason, no matter what audio player I use, every time I change the song or pause playing half my speakers will kill sound and it will seem like the sound profile has reverted to Analog Surround 5.0 Output. When I check my sound configuration it still lists 5.1, and I have to select another setting then change it back to 5.1 to get my speakers all functioning again.
I'm thinking of installing openSUSE-11.1 Gnome on a Fujitsu-Siemens Amilo 7400M laptop because the wireless in Gnome is much more user friendly than KDE3/KDE4 in openSUSE-11.1. The idea is to give this laptop to my 84-year old mother and things need to 'just work' for her (she currently has a desktop running openSUSE-11.1 KDE3 that uses a WIRED interface to the web).
I refuse to update this laptop to openSUSE-11.2 nor 11.3 (nor other recent distributions) because every kernel update after the 2.6.27 kernel has broken the Intel i855GM graphics drivers for that laptop. There are many bug reports and none have fixed the problem for this Fujitsu-Siemens implementation of the i855GM graphics.
Hence I am looking at Gnome.
I booted the laptop to a Gnome openSUSE-11.1 liveCD and wireless is easy and works great. But audio is very very VERY bad. It is incredibly user unfriendly and it does NOT work well. I assume that is because pulse audio in openSUSE-11.1 was very immature.
I note these updated packages in the openSUSE-11.1 update repository:
Code:
So my question is, did the updates to pulse audio (in the openSUSE-11.1 update repository) fix the pulse audio situation? Are there ANY helpful views on this?
Currently my wife is using this laptop with KDE-4.4.4 (and openSUSE-11.1) so I can't just install Gnome and play with it without taking the laptop away from her for a while (note the hard drive is too small for a dual boot of KDE/Gnome).
i have sound but my mic capture seems to be not working in skype or well anything else and I'm confused on what to do after searching. It's an integrated mic somewhere in my laptop. I enabled capture in Kmix but that didn't seem to do anything.
I am unable to capture sound from the sound card. I used to be able to do this with ease in SuSE 10.0 and 11.2. Now I have 11.4 and not only do I NOT have access to the sound card's channels (for base, treble, turning the mic on/off, and line in, Analog Capture Boost, etc) but now I can't seem to get at the settings for capturing sound coming from the sound card. I have tried using the Alsa mixer by way of the terminal and went to the Capture section and turned all of the settings all the way up. I didn't see any settings for Capture Boost as was available with 11.2's Alsa mixer GUI. Here's more of my info:
[Code]...
Isn't there ANY GUI sound mixer available that will give me access to all the channels I require? I not only record sound from my sound card, but I also use my mic at times for Skype and I like to be able to turn it off when not in use, rather than unplugging it all the time. I used to be able to do this with 11.2 and 10.0 and I really liked it that way. BTW, the plug for the mic is in the back of the computer and it's not convenient to have to plug/unplug it from there each time. For some apps, it's just a good thing to have all the sound settings done and in place before starting up the app. This I cannot do right now because of the changes to KMix and the Alsa GUI. I really really don't like this at all.
dell inspiron e1505 3.2 gb ram 1.86 ghz intel core duo ati x1400 gfx opensuse 11.4 kde 32 bit.
okay, here are the details: can't play any audio with amarok when desktop effects are enabled because the minute a window is moved, it will distort the audio. even when disabling desktop effects, some applications still cause this. can't play videos videos even with desktop effects disabled because of the same reason.
i just switched from ubuntu and when i ran version 11.04, i had to disable kms to do anything. i tried on opensuse 11.4 and the audio was flawless but the gfx went all to hell.