29 -> 25 fps without slow audio?

[Andy149]

If I use the wizard in tmpgenc with an ntsc source to pal the sound is fine but video is VERY Jerky, if i seperate the audio and convert the fps to 25 and stetch the audio to match the actors sound like they are being played over a tape player with low batterys. Is there any way to convert 29 to 25 without audio problems or with a less jerky picture? I thought i could convert the sourse to 23.975 fps then to 25 (because 23 to 25 i get no problems with audio pitch/speed) but i have no idea how to do it.

AnY HELP is much apreciated

[adam]

When film (24fps) is converted to NTSC (29.97fps) it is split into fields and those fields are repeated in a 2:3 pattern. This create completely new frames that were not existing in the original source. So if you want to convert this to any other format you first have to remove these frames and get back to the original 24fps source. The only way to do this is through an inverse telecine. TMPGenc has a built in IVTC filter, but IMO it sucks. The best such filter is decomb.dll which you will have to use through avisynth. Once getting back to 24fps, you just speed the video and audio up by 4%.

Without explaining how to do all of the above, let me just say forget it. You are making things way more complicated than you need to. You live in the UK, and you use PAL, so you really don't have to worry about regional conversions. The vast majority of PAL tv's are actually multiscan systems, and can play NTSC just as well as they can play PAL. For those few tv's that do not support NTSC, pretty much any dvd player sold in a PAL region can convert NTSC to PAL 60Hz, which basically all PAL tv's can play. Just make this disk NTSC and I guarantee you that it will play fine on your setup.

[Andy149]

my tv is in the minority, supose i could watch it on my computers, im a lowly student with no money so a new tv is not really viable, hummm ex-rentals! i have an idea but if anyon else can sugest anything PLEASE HELP!

[adam]

If you are playing these disks through a dvd player than I would be very suprised if you couldn't get NTSC disks to play correctly. Make sure you are trying all of the possible output options on your dvd player. Look throught its menu and see if it has a multi mode, or just try selecting all of the different options.

If you MUST convert to PAL than you can do it with TMPGenc for video and BeSweet for audio. Keep in mind that not all NTSC footage can be inverse telecined, and if your footage has not undergone a 2:3 telecine then there is literally nothing you can do. First thing you need to do is turn off the wizard in TMPGenc, it only makes things more complicated. Load the video in TMPGenc and preview it. Advance one frame at a time and see if you can see interlacing (comb effect) in a 2:3 pattern. If so then on the advanced tab double click on the inverse telecine filter. Set output to 24fps, click auto-setting, set it to motion prioritized, and select enable while encoding. Back on the advanced tab, check the do not framerate conversion filter. Now on the video tab set output to 25fps. Now on th main screen, set the stream type to video only and encode.

Now you will need to get audio into a format that BeSweet will accept. You didn't mention what your source was, but most likely this can be done in TMPGEnc. Load your source as your audio source and click file/output to file/wave file. Once you have created the wav file import it into BeSweet. On the bottom left it has options for regional conversions. Select the one for NTSC--> PAL and it will adjust the speed and pitch for you. Set the output to whatever audio format you need. For example if making a VCD or SVCD set the output to mp2 (mpeg audio) and if making a DVD you can set the output to AC3.

Once you have your video stream and audio stream you need to multiplex them together. You can use TMPGenc. File/mpeg tools/simple multiplex.

Set the type according to what you are making. ie: SVCD, VCD, or DVD.

[Xesdeeni]

Take a look at http://www.geocities.com/xesdeeni2001/StandardsConversion.

Xesdeeni

[Andy149]

had a fiddle on my dvd player, looked at the dvd players section and found out how to get to a menu i never new existed lol, set it to a different pal version and ITS IN COLOUR YEAH! thanx for your advice adam!