Ubuntu Multimedia :: How To Increase Video Reproduction Quality

May 11, 2011

When I watch movies on Ubuntu I noticed that quality of reproduction is not good as in Windows. All movies seems to have some sort of contrast problem which I don't know how to fix. This problem is not present in Windows (XP/7) and stand-alone DVD players play them also correctly.

Here are images (AVI, DivX format)

Windows version: http://i52.tinypic.com/125hlis.png
Linux version: http://i56.tinypic.com/tz53t.png

Also here is MKV format which is noticeably even sharper in Windows:

Windows version: http://i53.tinypic.com/2lmqxqe.png
Linux version: http://i53.tinypic.com/15gfmlt.png

Note: I didn't wanted to include them in post since they are quite big and I didn't want to do JPG compress since they might lose quality. Try not to resize them.

On Ubuntu I installed some 'extra' codecs (might be proprietary) via Software center. I use standard movie player that comes with 10.10, but for MKV I use VLC since mkv don't run in standard movie player. On Windows I use k-lite codec pack and GOM player. My guess is that Windows solve those sharpness and contrast issues by using some playback filters (possibly contained in k-lite codec pack) that are unavailable in Ubuntu. I installed proprietary video driver for ATI RADEON 2600.

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Ubuntu Multimedia :: Video Quality Is Poor

Sep 19, 2010

I am using ubuntu version Ubuntu 8.04 , it is observed that the video quality is poor as compared to windows os i am not sure it is driver problem or something different, below are detail of my system

CPU : 2.6 Mhz
RAM :1024 MB
board : Intel 845 chipset

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Ubuntu Multimedia :: Improve Quality Of Video Using Filters

May 23, 2010

I've some videos with poor quality.It has pixelation and such problems.Can somebody suggest me some filters to be used with avidemux for correcting the pixelation and maybe deblocking it

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Ubuntu Multimedia :: How Can I Half Video's Quality And Size

Aug 8, 2010

I have a 500MB video that is 720x400. I want to half the size of the video while retaining the same relative quality.My main goal is to half the filesize of the video, but to do that and keep the same relative quality I will have to also make the resolution smaller.I can't seem to find a way to do this.I would preferer to use ffmpeg, but any solution would be good at this point. I would really like to be able to do this from the command line, but if there is a gui program that will also give me the command line it uses, that's great too.Does any one know of a way to half the file size of a video while maintaining the same relative quality?

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Ubuntu Multimedia :: Hooked Up LCD TV As Moniter And Now Video Quality Sucks

Feb 4, 2010

I hooked up my laptop via monitor cable to the L.C.D. T.V. and ran a patch I found on Ubuntu forums because it wasn't showing up on the T.V. After that it asked me what screen resolution I wanted I entered it and then the screen worked! However, now when I play movies on either the T.V as a monitor or just on the laptop itself it comes out with bad video quality now. It sucks because that was the purpose of hooking up my T.V. as the monitor was to watch movies and videos I have downloaded.

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Ubuntu Multimedia :: Convert HD Mkv Video Files To AVI Or WMV Without Loss Of Quality

Nov 23, 2010

does anyone know of any FOSS program I can use to convert HD X.264 MKV video files to AVI or WMV without loss of quality. I wish to stream these videos from my linux box (yes u can do that via ushare)to my xbox 360 but unfortunaly it wont play MKV files.

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Ubuntu Multimedia :: Choppy Video Quality - Horizontal Flickering

Jan 16, 2011

I installed Ubuntu 10.10 recently and I love it. Everything works great except for video playing. When I try to play DVD's with VLC or ANY video player, I get horizontal flickering and I can't seem to fix it. I re-downloaded and installed the most recent video drivers from Nvidia and it did not change anything.

My video card:


I don't know what else to do. When I run windows, the videos play smoothly, just fine. But when I play the same DVD's under Ubuntu, it's choppy.

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Ubuntu Multimedia :: Make Exact Video Quality Conversion With Ffmpeg?

Jan 3, 2010

I spent about a half hour wrestling with different website tutorials about how to convert a file with ffmpeg and figuring out how to get all the video quality options right. Then I discovered you can just use the -sameq option and it figures it all out for you if you don't want to change the vid quality but just want it in another format. Thought I'd leave this on the site in case anyone else finds himself in the same boat.

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Ubuntu :: Increase Image Size Without Quality Loss?

Feb 26, 2010

is there a way to zoom in on an image with out as much blur as normal?

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Ubuntu Multimedia :: Anything That Can Be Done To Increase Video Streaming Performance?

Jan 19, 2010

Is there anything that can be done to increase video streaming performance?The general impression I got is that it's mainly an adobe problem and not much can be done, though currently streaming is nearly unwatchable. When I switch from full screen to normal size many of the players freeze, ..... HD is unwatchable etc.

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Debian :: Increase Image & Font Rendering Quality?

Mar 23, 2011

Below are example screenshots of Freemind from Ubuntu Lucid and Debian Squeeze



You'll notice that there is slightly different quality, it is also applies to pdf documents.

and my question is.. how do i increase rendering quality in debian squeeze?

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Ubuntu Multimedia :: Twinview - Actual Video Size Does Not Increase

Jun 18, 2010

i have some issues running twinview through my laptop and an additional monitor. i currently have the nvidia settings such that the monitor is the primary screen. however, whenever i click full screen in videos or another application, it maximizes in my laptop screen. also - when i maximize videos videos, the screen fills up, but the actual video size doesn't tend to increase (it doesn't stretch to fit). is this an adobe problem? ubuntu 10.04, nvidia driver v195, dell latitude d630 laptop.

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General :: Change The Parameters Of In-built Gspca To Increase The Image Quality?

Mar 24, 2011

I'm using Logitech WebCam on fedora 11 and running webcam server to capture the images on the browser.. it works fine but the image quality is poor...could anyone suggest me how to change the image quality by passing parameters via command line??I tested Video quality on cheese as well, which is poor too..I searched a lot in google for a solution but no use... i got some patch but couldn't install that since the gspca driver on my fedora 11 is in-built..

Output of lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 020: ID 046d:092f Logitech, Inc. QuickCam Express Plus


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Ubuntu :: Video Quality Is So Slow - Freezes Up?

Jun 15, 2010

my girlfriend has a netbook(acer A0751h-1401) and always complains how slow it is on vista and how much it freezes up, so i put ubuntu netbook remix on it. The video qaulity is so slow i give up and install xubuntu thinking it will be better since it is for slower computers, wrong. So im thinking it is a video driver issue or something. it has the intel gma 500 in it but it is only allowed to use 8mb of memory for video and i cant change it in the bios. I mean it shouldnt have all the lag on xubntu that it does

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Software :: Ffmpeg Video Output Really Low Quality?

Aug 11, 2010

I was experimenting with transcoding video with ffmpeg. using the command

ffmpeg -i moviename.avi moviename.mkv

outputs the .avi into .mkv, but the output quality is very, very bad, while the original is dvd-quality.

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General :: Add Audio To A Video File Without Losing Quality?

May 3, 2011

I have a vp6 codec flv. I have a wav file that I want to convert into mp3 and added to the vp6 flv. So when I play the flv the audio is added and the video quality is not changed.I tried:ffmpeg -i 20.flv -i 20.wav -vcodec copy -acodec libmp3lame new_file.flvbut I an error "Could not write header for output file #0 (incorrect codec parameters ?)". I'm guessing because it is a vp6 flv codec.Is there a way to just add an audio file to the flv? There is no audio in the current flv. I cannot lose any quality in the video.

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Fedora Hardware :: Unable To Change Resolution On Laptop Also Video Quality?

Feb 19, 2011

I installed fedora 14 on Dell laptop but I am unable to change resolution on my laptop also video quality is poor , I think proper drivers are not installed. I am new to Fedora, so probably missing something.

[root@localhost qalandar]# lspci -nnk | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02)

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OpenSUSE :: Skype Alternative - Client With Good Video And Voice Quality

Jun 16, 2010

I am looking for a good alternative to Skype. I would like to have video and voice calls with a family member who uses MS XP but would like to avoid Skype if possible. Does anyone know of a good client with good video and voice quality that will work on both platforms. I'd like it to use open standards so at least we can use different OS specific clients if one is not available for both platforms. Googling hasn't yielded much and some of the results refer to really old (~2006) articles or apps. I hope I'm not doomed to using Skype. I've resisted so long with using SIP clients for voice but am stumped now that I want to include video.

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Ubuntu Multimedia :: Get The Best Performance/quality On 10.04 Box

Jul 24, 2010

I'm trying to get the best performance/quality on my my 10.04 box and i have a few questions regarding 'sync to vblank'. My first question : I see 'sync to vblank' in 3 different locations.

- In compiz display settings
- In NVidia XVideo settings
- In NVidia OpenGLX settings
What is the difference between the 3 ?

Second question : I used to have problems watching movies where the picture seemed to be cut in half ( i'm not a native english speaker so i don't know the technical term). After reading some forums, i enabled sync to vblank everywhere i saw it. That solved the movie problem. But maybe that was overkill ?

So i did some benchmarking and noticed the following :

When i disable 'sync to vblank' in compiz my compiz benchmark drops from 60 to 30. But then my movies look worse.When i disable 'sync to vblank' in NVidia OpenGlx my GlxGears framerate jumps from 300 to 36000.I didn't notice anything when changing vsync in the NVidia XVideo setting. System specs below.

Ubuntu 10.04 64b
Nvidia GT 230 1536MB
NVIDIA Driver Version : 195.36.24

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Ubuntu Multimedia :: How To Decrease The Graphic Quality

Sep 20, 2010

I am runnin Ubuntu 9.10- the Karmic Koala on acer aspire laptop. since everythin in this netbook is crap. so I hardly can see movies that so much going on in them( when so much happens, the screen freezer for a while therefore i miss the most interesting bits) I used kinda every players. the only one that works for me is mplayer since it does not require high spec it works good but it has its own costs. if I use mplayer then i have the porblem of the sound (eg i can hear stuff before it happening) I am now just wondering if there is a way to decrease the quality. I really dont care if i have great quality or not as long as i can c whats happening ( at least for this netbook anyway)

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Ubuntu Multimedia :: Music Sounds Quality Is Bad

Dec 9, 2010

I'm still new to Ubuntu and I'm trying to get the sound working. I have a Satellite X205-SLi1 and just installed Lucid. Everything is okay, except for the sound. My laptop has 5.1 harman/kardon speakers and I think just some of them are being used and the quality is bad. I'm not sure what to do...

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Ubuntu Multimedia :: Low Sound Quality In Pod Casts

Jul 21, 2011

I get very low sound quality when downloading pod casts. I tried the same file on a windows machine and there the sound was good.What can I do? Should I upgrade the sound card driver?

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Ubuntu Multimedia :: Convert To Standard Quality In Handbrake?

Jan 8, 2010

I downloaded an HD video from ....., but my computer is not powerful enough to play it. Is it possible to convert it to standard quality in Handbrake? If not, what video converter would be best?

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Ubuntu Multimedia :: Splitting Videos And Maintaining Quality?

Feb 24, 2010

I am trying to use ffmpeg to split a number of videos of different types (WMV, MPG, AVI). I do not want to change anything else, just split them into smaller chunks. The video is split, but the quality of the output file is terrible. I would describe it as "blocky" (I think the correct term is "pixelated"). When I make the player (KMPlayer) much smaller the problem naturally goes away.

The command I am using:

ffmpeg -i original_vid.wmv -ss 00:00:00 -t 00:05:00 first_vid.wmv

The output:

FFmpeg version SVN-r19352-4:0.5+svn20090706-2ubuntu2, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --extra-version=4:0.5+svn20090706-2ubuntu2 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis


"Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)

Seems to mean something, but I couldn't find anything saying that this is the problem or what O should do to correct it.

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Ubuntu Multimedia :: Choose A High Quality Mp3 Player?

Apr 1, 2010

I am currently in the market for one that has ogg/flac support on my next paycheck.

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Ubuntu Multimedia :: Make A DVD-Rip Same Viable Quality Like Originally DVD?

Jun 14, 2010

How can I make DVDrip movie look almost like in original DVD?

And can you recommend me a software for this? This is first time for me to do this in Linux.

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Ubuntu Multimedia :: White Noise And Low Quality Sound

Aug 4, 2010

When I turn my sound up all the way I hear a white noise or "staticy" sound which I do not know how to get rid of. My sound when playing music is not the best sound quality either. Please help me out somebody please. Here is my sound card info:


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Ubuntu Multimedia :: Massive / Horrible Sound Quality

Nov 26, 2010

having some massive sound quality issues... my sound sounds so incredibly horrible.. it sounds like my speakers are blown out, all crackly and ******. at a loss because i do have sound, it just sounds horrible.

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Ubuntu Multimedia :: Looking For High Quality Compatible MP3 Player

Dec 24, 2010

I am looking for a good mp3 player. I obviously dislike apple n windows so I wont buy an iPod or Zune player. Now I am wondering if any of you had good experience with any other mp3 player on Ubuntu. The two things I want are firstly a product of high quality n functionality like those two mentioned above AND secondly a seamless ubuntu compatibility. I'd love to see synchronization and stuff working out of the box. Anyone out there found a outstanding product and like to give a recommendation?

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Ubuntu Multimedia :: Degradation Of Audio Quality By Reencoding

Jan 18, 2011

If I were to take a flac music file and convert it to alac using ffmpeg would there be any degradation of audio quality? I am also wondering how many people are actually able to tell the difference between a high quality MP3 and a lossless file. If I were to find a suitable place to upload a load of different files would people be willing to judge the audio quality?

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