TKaraoke official web site.
Review web site tkaraoke.com.
Welcome Guest Search | Active Topics | Members | Log In | Register

We are moving to a new forum, this forum will be closed in a few days.
New Forum Address
Forum này sẽ đóng cửa trong vòng vài ngày, xem tin tức ở link trên.
(OUTDATED)How to convert VOB to MKV to save space Options · View
vcdz382
Posted: Wednesday, September 10, 2008 11:50:11 AM

Rank: Administration
Groups: Administration

Joined: 4/9/2008
Posts: 1,292
Location: California, USA
Due to limitations of MediaCoder (doesn't support unicode file names, buggy and crashes sometimes), the tutorial below is no longer a recommanded method of converting VOB files to MKV files.

TKaraoke supports many video formats including VOB, Divx, MPG, MP4, and MKV. MKV is the x264 container offering high quality video at smaller file size. Many believed x264 is the best video encoder out there and TKaraokeTools supports audio modifications on MKV files. Divx users might want to consider using x264. The space saving on MKV files compared to VOB should be around 60% to 80%.

Required Tools:
1. MediaCoder
2. TKaraokeTools

To convert VOB karaoke files to MKV karaoke files to use with TKaraoke, there are 9 simple steps.
Step 1.
Code:
Drag and Drop all your VOB files to MediaCoder.  Note that at the time of this writing, MediaCoder doesn't support unicode file names.  Hence, your file names in this step must be non-unicode.  TKaraokeTools supports unicode file names so your file names in step 6 can be in unicode.

Step 2.
Code:
Select the Output folder in MediaCoder

Step 3.
Code:
On the Audio tab in MediaCoder, check the Copy Audio checkbox

Step 4.
Code:
On the Video tab in MediaCoder, select "Three-Pass" for the mode, "H.264" for the Format, and "Matroska" for the Container

Step 5.
Code:
Click on Start to begin converting




After a while, all your VOB files should be converted to MKV files on the selected Output folder. These MKV files will have "undefined" as the audio tracks' language. Also, depending on your VOB files, the default audio track might be Nhac (with singer voice) or Karaoke (without singer voice). To be consistent across all of your songs, the default audio track should be the Nhac track. TKaraokeTools can help pick the right default audio track and label your audio tracks accordingly. That is, the default audio track should be named Nhac (with singer voice) and the non-default audio track should be named Karaoke (without singer voice). The language for both audio tracks should be Vietnamese.

Step 6.
Code:
In TKaraokeTools, pick the source folder (the folder selected in step 2)

Step 7.
Code:
Select the destination folder

Step 8.
Code:
Pick the correct options in TKaraokeTools.  If your VOB files default track is Nhac, your Options should be Track1Name=Nhac, Track2name=Karaoke, DefaultTrack=Track1.  If your VOB files default track is Karaoke, your Options should be Track1Name=Karaoke, Track2Name=Nhac, DefaultTrack=Track2

Step 9.
Code:
Pick the number of Thread.  If you have a dual core machine, select 2.  If you have a Quadcore machine with a fast hard drive, select 4.  If you have a slow machine, select 1.  To start fixing the MKV files, click on "Modify MKV Files"



After fixing, your MKV files should have the following properties:
1. The audio track with the singer voice should be named "Nhac"
2. The audio track without the singer voice should be named "Karaoke"
3 The default track should be the Nhac track (doesn't matter if it's Track1 or Track2)
4. Both audio tracks' language should be Vietnamese

With the above properties, when switching the audio track, TKaraoke will display:

Or
vcdz382
Posted: Thursday, September 11, 2008 10:36:02 PM

Rank: Administration
Groups: Administration

Joined: 4/9/2008
Posts: 1,292
Location: California, USA
There are some users who think the default bitrate of 800kbps (in step 4) is not good enough to preserve the video quality. The suggested bitrate is 20% the bitrate of the original VOB file. Also, the framerate should match the framerate of the original VOB (usually 29.97) instead of the default framerate of 25. There are some test files on the newsgroup that show the original VOB file, the MKV file at 800kbps bitrate and the MKV file at 1800kbps bitrate (20%). Opinions about the video quality differences between these three files are welcome. Once we settle on this issue, this tutorial will be revised to set the correct bitrate. Participation of video quality experts is highly desired!

To get the test files, try searching here.
wanker
Posted: Friday, September 12, 2008 6:59:02 AM
Rank: Member
Groups: Member

Joined: 9/12/2008
Posts: 24
Location: USA
One vote for 1800kbps version, smooth playback and still at manageable filesize.
KaraDude
Posted: Friday, September 12, 2008 10:40:15 AM
Rank: Member
Groups: Member

Joined: 4/11/2008
Posts: 12
Location: USA
wanker wrote:
One vote for 1800kbps version, smooth playback and still at manageable filesize.
Is the smooth playback caused by the fact that the 1800kbps version has the correct framerate of 29.97? Or is it because of better bitrate? Or both? Did you see a difference in picture quality?
wanker
Posted: Saturday, September 13, 2008 6:23:59 AM
Rank: Member
Groups: Member

Joined: 9/12/2008
Posts: 24
Location: USA
if you check the 800bitrate version, there are some lagging when the camera panning from left/right and zooming in/out because of the incorrect 25fps framerate. Also, if you watch that clip in large screen, you'll see some pixillation because of low bitrate encoded and of course at 1800kbps bitrate which is more than double the 800 setting will improve this.
vcdz382
Posted: Saturday, September 13, 2008 1:44:07 PM

Rank: Administration
Groups: Administration

Joined: 4/9/2008
Posts: 1,292
Location: California, USA
The bad part is MediaCoder doesn't support unicode file names. This is a major drawback. I saw some requests dated back in 2006 to support unicode file names but it doesn't look like this will happen. Also, some encoding quality settings in MediaCoder was bugged and didn't apply correctly. We might modify TKaraokeTools to take on the Encoding job as well so that unicode file names are supported and that the quality setting get applied correctly. Changing to higher quality setting will slow down encoding time but improves output quality with the same file size.
wanker
Posted: Saturday, September 13, 2008 4:18:46 PM
Rank: Member
Groups: Member

Joined: 9/12/2008
Posts: 24
Location: USA
also mediacoder seems to crash randomly after 20 jobs or so with setting change like crops or bitrate changes. If you can add encoding function to the tool with some simple encoding setting options, I think that'll work out better.
vcdz382
Posted: Saturday, September 13, 2008 7:54:53 PM

Rank: Administration
Groups: Administration

Joined: 4/9/2008
Posts: 1,292
Location: California, USA
wanker wrote:
also mediacoder seems to crash randomly after 20 jobs or so with setting change like crops or bitrate changes. If you can add encoding function to the tool with some simple encoding setting options, I think that'll work out better.
Yup, MediaCoder crashes several times for me when encoding many 100+ files. Here is a preview of the new TKaraokeTools. Unicode file names are supported.
wanker
Posted: Wednesday, September 17, 2008 1:58:12 AM
Rank: Member
Groups: Member

Joined: 9/12/2008
Posts: 24
Location: USA
Interface looks simple enuff, thanks for quick update.
vcdz382
Posted: Wednesday, September 17, 2008 9:45:06 AM

Rank: Administration
Groups: Administration

Joined: 4/9/2008
Posts: 1,292
Location: California, USA
The final GUI looks like this. We'll release it late today or tomorrow - it's in the last stage of testing.
Users browsing this topic
Guest

We are moving to a new forum, this forum will be closed in a few days.
New Forum Address
Forum này sẽ đóng cửa trong vòng vài ngày, xem tin tức ở link trên.

You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
Powered by YAF. Customized for TKaraoke.com. Privacy Notice