How to convert PAL to NTSC vcd/svcd

[mange]

I like to know how to convert PAL to NTSC

I use the following programs : TMP enc, viurtioal dub, dvd2avi.

[Ricardo]

Open the movie file in TMPGEnc, select NTSC template of your choice, and then run.

Easy.

[Capt_Diode]

This is the process that I used to eliminate the picture from jumping and adding frames.

Step 1
SmartRipper
Click tab Stream Processing and check Enable Stream Processing
Deselect all languages except the one required to listen to in my case English
Select Settings per taste. (Settings-> Movie tab, Key check once, File - Splitting every vob-file, OK)
Select Target Directory
Start

Step 2
DVD2AVI
Open VOB file created above
Click video Field Operation and select none.
Click File and Save Project
Select Target Directory and Name
Save

Step 3
Using Cool Edit
Open wave file created above
Click Transform, Time/Pitch, Stretch
Select Parameters based on Ratio scale below PAL being the Benchmark


(Note: The file used for testing was the last chapter only, in the movie used as the benchmark.)

VCD Cool Edit Resample (does not preserve pitch or tempo)
NTSC Film 23.976 53.804 Seconds Ratio=104.271

Step 4
TMPGEnc
Load the VCD or SVCD template (IMHO stick with 23.976 and don't preserve pitch)
Click Settings
Click on the advanced tab and check Deinterlace (none) and Do not frame rate conversion. All other selections leave unchecked
Select the Video Source (d2v file)
Select the audio source (wav file created with Cool Edit)
Select a target name and directory
Everything else is default
Click Start

At the end of the creation of the mpg file TMPGEnc will popup an error message. I think it recalculates the frames based on the audio that was stretched as far as I can tell. Just click ok and the file should be complete. This is how I was able to create my DVD to VCD and SVCD converting PAL to NTSC.

The process was time consuming to learn and takes quite a bit of time to complete. In the example above, there are 1290 frames at 25 frames per second. Basically what you need to do is calculate how long a frame needs to be shown based on the standard you wish. The PAL standard would be 1290 Frames at 25 frames per second equals a time of 51.6 Seconds. Since 23.976 is the NTSC Film Standard, (1290 frames divided by 23.976 equals 53.804 Seconds) each frame must be shown longer to keep horizontal sync thus making the movie slightly longer. This requires the need to stretch the audio to match the additional amount of time caused by the conversion. The above numbers in the matrix are based on quick calculations. When I tried to preserve pitch it created what sounded like stuttering and never used it. Also I noticed that the 29.97 also made the voices pitch up a bit. Although the files for 29.97 are smaller, the work I did focused on 23.97 and resampling the audio.

The steps above are based on my tinkering and there could be more accurate means of completing the conversion, I just don't know enough about the betas and trial software I have downloaded. I have found some information on this site but nothing that I could use to be a start to finish procedure. I am not an expert by far but this worked flawlessly for me. If anyone has further improvements or could streamline the process I would be open to suggestions posted on the forum. This could also be reverse engineered to convert NTSC to PAL if needed.

I have posted this as a Thank You to all of the people who have worked on creating the software and helped with suggestions in working on this subject. I used the above software to create the mpg that I needed and wish to Thank all of the people who created the software and posted it for trial. I used this to backup software I own and I do not endorse the use for piracy. In case anyone is wondering what would cause so much effort in a conversion, it was due to an error in a family members purchase on E-bay.

Good Luck


Regards,
Captain Diode
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[vitualis]

Capt_Diode,

Once you have your 23.976 fps source, you can up convert it to 29.97 (only if you need to, of course) when encoding with TMPGEnc by ticking the box "3:2 pulldown (in v12a)" under "Advanced".

This looks "okay" (no skipping/jumping, A/V in sync) but obvious not as good as keeping it in NTSC FILM... However, it is probably the best way of converting progressive PAL (25fps) to NTSC (29.97 fps) for standard VCDs.

Regards.

[Capt_Diode]

Michael,

Thanks for the advice!

Captain Diode
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