Ubuntu Multimedia :: Improving Sound In Digicam Video
Apr 10, 2010
My camera takes (QuickTime) videos with abominable sound quality. I've got one that I'd like to improve the sound quality on. What I'd actually like to do is to separate out the audio track, run some filters over the audio track with Sox, and then splice it back in. I'm comfortable doing the sox-based improvements, but have no idea how to get the sound out of the video in the first place or to mix it back in. Perfectly comfortable with winding up with a non-Quicktime video as a result, though.
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Oct 17, 2010
When I play large HD videos in mplayer, the video and sound frequently get out of sync, and the video plays a little strangely (occasionally speeding up and occasionally slowing down).
I think it's because mplayer is only running on a single core. As I've got a quad-core processor, it seems inefficient. I've seen that there is theoretically a way to get mplayer to work with multicore setups, but it requires compiling with different options. That'd take me a little while to work through.
Ideally there would be a pre-compiled version in the software centre, or a player which has support built in (again, ideally in the software centre). Is there such a thing available?
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Jan 23, 2010
when trying to play songs purchased off of iTunes I don't want to be limited to having to watch them through Virtualbox.how to get vlc or mplayer to play .mp4 videos in Ubuntu 9.10? I've got vlc 1.0 and trying to convert them using ffmpeg didn't work, I keep getting the following error.
swScaler: Unknown format is not supported as input pixel format
Cannot get resampling context
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Mar 5, 2010
Have used DeVeDe to make DVD suitable for standalone player in lounge the player plays various formats. the problem is as the title suggests A/V not in sync. It was the first time I had ever attempted to create anything like this. Iam sure I set DeVeDe correctly, the file plays properly on the pc though.
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Mar 15, 2010
I have no problem playing all videos and sound files. I have installed most codecs and propriety software. I can play all downloaded .flv videos from all the sites except one. When I open the .flv file from this site, I get "internal data stream error."
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Apr 12, 2010
My problem is that i have no sound in any video player. The video works perfectly, but with absolutely no sound. I've tried switching output to ALSA, OCC and still no success. My audio files are playing perfect with any music player. In sound setting I'm using Analog stereo duplex, I have the option of choosing HDMI, but than I have no sound whatsoever.
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Sep 26, 2010
I've installed Minitube and all of needed gstreamer and photon plugins.
The program opens, I do a search and then click on a item I can see the gasgauge rolling as if the item is playing but there is no sound no video. And no error messages.
I'm running 1.1.1 maverick and have tied both 1.1 and 1.2 beta, with no avail.
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Jul 13, 2011
In the last week, whenever I play videos, online or offline, the sound and video are out of sync. Usually the sound is a full second behind the videos, but I've noticed it at less.
I just tried watching a video and whenever someone said something, the sound was a full word behind the movement of the mouth.
This never happened until recently. I think there was an update to the sound drivers a couple weeks back, but I'm not too sure.
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Feb 3, 2010
This is true for .flv, .avi, .mov, and .mp4, at least. This is true in both vlc and movie player. Thumbnails generated from frames in the videos appear correctly in nautilus. Videos play fine in firefox, on ....., but I downloaded one as an .flv and then it had the same problem. I have restricted extras freshly installed. My "Ubuntu 9.10 - the Karmic Koala" system is fully updated. I've found several other forum posts about the same kind of problem, but I couldn't find anything helpful in them (like that the contrast setting might be WAY out of whack, which it wasn't, or that nvidia drivers needed to be updated or reinstalled, which I don't have anyway, etc).
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Feb 4, 2010
I seem to be having some audio clashes. I use Exaile to play music (if that matters), and after I play music, no sound comes out of videos (not just Ubuntu, it won't work from Yahoo or MSN videos either). Then when I try to go back to playing my music on Exaile, no sound will come out of that. Likewise, if I restart the computer... the sound works again. If I instead watch a video first, there will be sound -- but as soon as I try to play music from Exaile, nothing comes out.
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Aug 24, 2010
I installed Kubuntu 10.04 and found out that there is no sound for flash in firefox. Also I here no sound when playing local video files (VLC, KMPlayer).
I checked kMix and everything is on. I tried to install pulseaudio, but I am not sure about it. Last time I saw it couldnt connect to some server or what... Although I can hear system sound and Amarok 2 plays mp3. I didnt mention that I tried to install libflashplugin and kubuntu restricted extras.
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Dec 15, 2010
Two month ago I bought Lenovo S-12 (netbook) - [URL] Everything worked great at the beginning. In the last month I have problems listening to music, it stops and continue once a second. I made a video to show how it goes: [URL] This problem happens also in ..... and any other online website.
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Jan 2, 2011
When I play a flash vid (ex. from .....) I have sound but the entire screen is simply white. When I put my mouse where where the "play/pause" button should be I can click there and they work, but its all white. Flash in chrome works just fine, I use regular ubuntu repos. (ubuntu 10.04 32 bit)
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Mar 20, 2011
I just reinstalled yesterday Ubuntu on my second PC, I didn't use 2nd PC for a while so I decided it is time to refresh Ubuntu on it. I installed sopcast to watch some football games. I setup VLC as a main player, so when I past address to sopcast and start bufforing VLC turned on and I was able to watch game, after sec some small windows with error appeared sayin' "VLC probably does not support this sound or video format "wmap"" I closed this windows and noticed there is no sound... I don't know how to fix this problem it never happend before.
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Mar 29, 2011
I recently installed a new evga nVidia GT 430 video card in my Ubuntu 10.10 32-bit system. This had the unforseen side effect of eliminating my sound.
I had no idea that the new video card would include a new sound module. My intent is for my system to use my Soundblaster Audigy2 soundcard in 5.1 output mode. The system still seems to be configured to do that, but the nVidia HDMI Stereo output module seems to have taken over in Sound Preferences.
Here is the output of lspci:
Code:
lspci
00:00.0 Host bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 04)
00:01.0 PCI bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL PCI Express Root Port (rev 04)
[Code].....
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May 1, 2011
I have a big problem with the flash plugin... Since a couple of weeks ..... and some internet sites with flash content don't work... sounds load and playback correctly but I see a grey square instead of the video.
One weird thing is that ..... videos work perfectly when tagged/embedded in another site, such as facebook or a gmail chat, but on the ..... official site I can't see a thing.
Ubuntu 10.10
Firefox 3.6.16
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Aug 8, 2011
After recent upgrade which contained the newer kernel ( 2.6.35-30-generic). I've started to experience problems with sound and video in programs - deadbeef and totem. Both of them dont play any sounds and video in totem is skipping every 3-4 seconds (the same applies to flash videos in browser).
As I run deadbeef from the command line I dont get any significant information. I run ubuntu 10.10 amd 64. I tried to reinstal gstreamer my programs and codecs with no luck.
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Jul 31, 2010
I am having problems: videos have sound, but no picture.I'm using a Gigabyte motherboard with integrated ATI video, and I've read before that XBMC (and Ubuntu in general) don't like ATI too much. Is there any hope left to make XBMC work?I've tried the following:1. Fresh Ubuntu installation, default ATI drivers. Result: when starting a video, audio is okay, but no video. Also, visibly slow graphics even while navigating XBMC menus
2. Installed ATI/AMD proprietary FGLRX driver via System->Hardware drivers. Result: significantly accelerated menu navigation, but no video still. Note: having no problems watching videos via VLC or Totem Movie Player (after downloading proper codecs)3. Fresh Ubuntu installation, then downloaded and installed ATI's proprietary Linux drivers from ATI's site (ati-driver-installer-10-7-x86.x86_64.run). Result: yippee, I see some video, but wait: no color!! (all videos are in sepia-like mode)
4. Followed these instructions to install the unofficial ATI drivers. Result: total failure, XBMC won't even start, says something about the need to have proper hardware OpenGL acceleration.System info:GIGABYTE GA-MA785GMT-UD2H AM3 AMD 785G mobo with ATI Radeon HD 4200 onboard graphicsAMD Phenom II X2 550 processor4 gigs of DDR3 RAM Ubuntu Lucid 32 bit (2.6.32-24-generic-pae)
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Nov 6, 2010
I am having a problem getting sound to work in flash-videos in Kubuntu 10.10. My system currently has two working sound cards, the one integrated into my motherboard and the other is a USB Logitech headset. After installation, the speakers were set as my default output device which I did not want. I was able to move all the sounds over to the USB headset using phonon. While Amarok works, videos work (downloaded, wmv, avi, divx, etc) I cannot get flash video to work in Firefox. I set up my prefered device as the USB headset for everything in Phonon, but still the sound will only come out of my integrated soundcard (speakers). I'm not sure what exactly I am missing, I set everything up, but still it's a no go. What switch did I miss? I haven't used Kubuntu for a while, but i'm pretty sure this worked fine in Ubuntu 9.04 (when I last used it).
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Dec 16, 2010
I am experiencing problems with sound in Maverick on my Dell Inspiron i6400. When the video gets busy while playing sound, the sound gets highly degraded (dropouts, glitches, clicks and cracklings). For example, it happens when an advert animation is playing on a webpage, or when scrolling a document/a webpage. It especially happens when scrolling a document in evince. This is a frustrating issue since I basically cannot work while playing music! My sound chipset is a Intel HDA ICH7.
An important point is that it only happens when I use a "large" screen resolution (eg 1920x1080), and not when the resolution equals or is below 1280x800. Therefore I think this is related to the video side. The two CPU's cores (Intel T2050@1.60GHz) never reach 100% load when the problem arises. The memory is not full either. I use Compiz and various desktop effects, but the problem still remains without it. My video card is an ATI Mobility Radeon X1300 with 256 Mb of RAM (using the default free driver shipped with Ubuntu). Also, the video is fluid and flawless so I do not understand where the problem comes from. This might be related to a priority/ordering issue, I do not know.
The most relevant bug report I found is the following one:
[URL]
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Jan 10, 2011
I'm having a hard time with my hdmi output on my HP G60-128CA laptop to my HDTV.For now I'm getting video only with the Nvidia 173 driver no mater if I'm on 10.04 or 10.10. In the 2 cases, the sound is not passing. Let me add that all the options in sound preferences are available and all the speakers tests i did whit aplay worked ( no error messages), and no muted devices in alsamixer.In all my web searching one thing is strange to me: i didn't find a lot of problems regarding the hdmi display output whit the latest nvidia driver
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Feb 21, 2011
I seem to have lost Rhythmbox on my system. Ubuntu software centre tells me that it is installed, but it is not listed under "sound and video" under "Applications. Is there a way to get it back?
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Mar 21, 2011
Video was already choppy since upgrade to 10.10, updated my xorg and now webcam is not working and I hear a ringing sound... its a lenovo webcam
system specs:
AMD Athlon II Dual Core M320
Gnome 2.32.0 / Ubuntu 10.10 Maverick
Linux 2.6.35-28 Kernel
ATI Fire GL Driver
Code:
fglrxinfo:
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Jun 16, 2011
I've successfully install tovid on my natty ubuntu
with sudo apt-get install tovid
Reading package lists... Done
Building dependency tree
Reading state information... Done
tovid is already the newest version.
but can't find it on menu applications / sound & video and any other tab
have tried refreshing gnome panel
killall gnome-panel
but doesn't solve problem?
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Jun 18, 2010
I was having problems playing videos at all (here: Video files won't play and Dolphin keeps closing.openSUSE Forums) but now videos will play but without sound.I'm using vlc and smplayer, on a laptop running KDE 11.2, and VLC gives me this error:SMplayer acts like nothing is amiss.I've gone through the restricted media guide, and the first few steps of the audio troubleshooting guide that is linked in another thread and neither have helped.I tried installing alsa firmware which installed something but did nothing, then I tried a soundtest and all I could get back was this.:~> speaker-test -Dplug:front -c2 -l5 -twavIf 'speaker-test' is not a typo you can use command-not-found to lookup the package that contains it,like this:cnf speaker-test and I've just tried the yast step but can't work out how to delete and re-add my card.
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Oct 26, 2010
Somewhere along the line, sound disappeared from my browser. It was working. I have been following this thread and it has not yielded a positive result. I also installed mmcheck from red dwarf and it worked fine. The only exception was that phonon-vlc and libx264-104 from videolan are installed.
I also found in the firefox about:config with filter to flash:
plugin.disable_full_page_plugin_for_types; application/x-shockwave-flash
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May 19, 2010
I have been messing around with Cinelerra after doing a Final cut pro course some time ago but as it needs to be told what to do more i am finding it hard going. When I have track 1 that has audio and video and also track two has the same then i mute the audio in one and block out the video in then other. Then add effects. It is then moving audio or video around and nothing is in sync anymore. Not where i put things. I undo the effect to see if it will go back but no go. I try to undo to the point where maybe i missed something but nope that is not it. Inevitably i have to redo everything again but then i end up with the whole thing out of sync again. I had a previous install of Ubuntu and Cinelerra and i don't remember striking this problem. Am i not loading the tracks properly. I don't have a good work flow with this and i know i should try something more simple but i am impatient to edit videos i have had for years and years and years. I never did learn editing in windows so i am happy to be getting somewhere in Linux.
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Oct 11, 2010
Have just upgraded to 10.10 using update manager, using firefox playing flash videos works fine untill i try to watch in fullscreen where the video freezes every few minutes although the sound keeps playing.toshiba satellite laptop using Intel, GMA 4500MHDto solve this would be appreciated, really don't won't to have to re-install 10.04 if i can avoid it
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Jan 7, 2011
I have a vx-6000 and the video and pictures actually works good but there is no sound can you get sound to work and how?
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Jan 12, 2011
Sound is fine in flash video, but gets garbled in fullscreen.
Another problem I'm having is that when I turn the volume past 60% using the sound applet on the panel, it gets very distorted. If I open sound preferences, I notice it is in the "amplified" zone at this point, so I have to keep it in the "unamplified" zone, but then it's not loud enough.
Here is my soundcard info:
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio C
ontroller (rev 02)
Subsystem: Lenovo ThinkPad T60/R60 series
[Code].....
More info on my setup: output on my system from Alsa: [URL]
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