please help me with 23.976fps to 25fps conversion

[bruce_wein]

hey guys
what is the EASY way to convert 23.976 Xvid file to 25 PAL VCD ????
i saw something about speeding up 4% ... what is that exactly ?

[Grimey]

There is no easy way to convert it. your best bet would be to follow a guide like this one: https://www.videohelp.com/forum/viewtopic.php?t=228505

[johns0]

Load the xvid into virtualdub and choose video/framerate and change to 25 fps,in the same video section change to direct stream copy and save avi as,then extract the wav and use besweet with gui to change the framerate from 23.976 to 25.000 fps in the conversion table and save as wav,then join the changed avi with the wav with virtualdub.Then encode as pal vcd.

[DRP]

No matter what you do you're gonna have to treat the audio and video streams separately so get used to that idea. Speeding up the video by that 4% is really easy. All you need is AVIFrate to change one header value in the AVI file from 23.976 to 25 and you're done.

The audio is a bit more tricky. Extract it by opening the AVI file in GoldWave. Then if your file is a DVD-rip at 23.976 & 48kHz you change the PLAYBACK RATE to 50050Hz (25/23.976 x 48kHz) and then RESAMPLE back to 44.1kHz. Then MAXIMISE VOLUME on it and save out as WAV.

Arc up TMPGEnc as you normally would and load the AVIFrate changed AVI as the video input and GoldWave modified WAV as the audio input and convert as you normally would. Hey presto you've just converted 23.976fps to PAL 25fps!

[lordsmurf]

http://www.geocities.com/xesdeeni2001/StandardsConversion/index.html#Tools

[bruce_wein]

i have a question for DRP !!!
10x a-lot on a quick and excellent answer!!!
question :
all my files are DVD-RIP in XviD but the audio sometimes
AC3 5CH , AC3 2CH , MP3 VBR , MP3 CBR

do i treat all the above audio the same ? or each one differently ?

[bruce_wein]

serious problem !!!!
AVIFrate gives me an error message every time i open it :
Can't open Files\AVIFrate\avifrate.exe
whats wrong ?

[DRP]

i have a question for DRP !!!
10x a-lot on a quick and excellent answer!!!
question :
all my files are DVD-RIP in XviD but the audio sometimes
AC3 5CH , AC3 2CH , MP3 VBR , MP3 CBR

do i treat all the above audio the same ? or each one differently ?

MP3 whether it be VBR or CBR is no problem at all. Providing you have some sort of MP3 codec installed on your system to be able to decode MP3 files then you're fine, just load the AVI in GoldWave and it will all be sorted without any further effort on your part. I'll assume you can listen to MP3s while you're working in WinAmp or whatever. If so, then you're set.

AFA AC3 is concerned, you will need an AC3 codec installed to get the same ease of use. Just install the AC-3 ACM Decompressor v0.7 that you'll find in tools on this website. Look in the "VirtualDub Tools" section from memory - it's the first item listed. It is a very simple, no fuss, no mess, nothing to configure or set-up codec which just provides you with system-wide AC-3 support so you'll never have to worry about it again. Nothing could be simpler.

[DRP]

serious problem !!!!
AVIFrate gives me an error message every time i open it :
Can't open Files\AVIFrate\avifrate.exe
whats wrong ?

Please!!! If that's your idea of a "serious problem" then you've led a *very* charmed life indeed!! Come and talk to me after you've just spent the weekend reinstalling Windows and all your massive collection of video editing software after a spyware attack destroyed your IE installation and then we'll compare "serious problems" okay?

The author of AVIFrate doesn't appear to have allowed for long filename/foldername support in his program. It can't read folders with spaces in them etc. The program works fine but you do need to install it someplace where this doesn't become an issue. For me, I solved this issue by simply installing it in a subfolder called AVIFrate located in the HDD root directory. So place the program in C:\AVIFrate\ and call it via a shortcut link that points there. Problem solved.

Next...

[bruce_wein]

last question man (actualy 2)
1) when i install goldwave it says the lame_acm.acm file was found and it will cause errors in saving mp3 and it asked me if i want to rename it and i said OK
was it OK or did i do something wrong
(buy the way i use K-Lite Codec Pack v2.27)

2) after i'm done with AVIFrate do i load the changed avi to goldwave or the original ?

10x

[DRP]

last question man (actualy 2)
1) when i install goldwave it says the lame_acm.acm file was found and it will cause errors in saving mp3 and it asked me if i want to rename it and i said OK
was it OK or did i do something wrong

I wouldn't have done that. You're never going to use GoldWave to save anything to MP3 format anyway so who cares if GW doesn't like the name of your MP3 codec file. It doesn't matter. There are far better tools out there for making MP3 files like Exact Audio Copy, so don't even think of using GW to make MP3s with. You are always only going to save out of GW as uncompressed 16bit 44.1kHz WAV format, so ignore the warning about the LAME dll filename. For making (S)VCD you'll need the audio in MP2 format anyway - which you'll get tooLAME to do via TMPGEnc as a frontend anyway.

(buy the way i use K-Lite Codec Pack v2.27)

One of the nastiest pieces of software ever written IMHO. If you want to create DLL conflicts up the whaazoo, installing the KaZaA Codec Pack is the fastest way to do it. If I was you, I'd google for the freeware "codec sniper" as fast as possible and blitz all the codecs it reports as having errors.

2) after i'm done with AVIFrate do i load the changed avi to goldwave or the original ?

The changed AVI becomes the video input into TMPGEnc. In it's changed state it is only useful as the video input into your choice of VCD (MPEG) encoder. The change you make with AVIFrate only affects the video stream. It doesn't touch the audio. Play it after you've changed the header in AVIFrate and you'll see what I mean. The audio will be waaaay out of sync with the video. That's fine though because you're only using it as the video input, the audio will come from the WAV file you make in GW.

You can use either AVI file to extract the audio from in GW. Before or after you've changed the header with AVIFrate doesn't make any difference. The audio stream remains unchanged by the header information you modify with AVIFrate.

Tip: when you change the frame rate with AVIFrate, append the *original* frame rate to the end of the filename, just in case you need to set it back again after your VCD conversion. Needless to say, *don't* share the altered AVI file with your friends or on the internet in it's changed state. People tend to get a bit narky if you go distributing AVI files with massive audio sync problems

[bruce_wein]

man i'm sorry to bother u with so many questions
but .... i have a few more (i hope its allright)
1) what codec pack are u using and what do u recommend ?
i'm using kazaa's because they are updating it all the time and it has all codecs in the world i think

2) everything went great! just 1 last problem ....
how do i convert subs (*.sub or *.srt) from 23.976fps to 25fps ???
because now they are (obviously) out of synch

10x man !!!

[bruce_wein]

please man i'm waiting for an answer...

[DRP]

man i'm sorry to bother u with so many questions
but .... i have a few more (i hope its allright)
1) what codec pack are u using and what do u recommend ?

I don't use a codec "pack" at all. They are evil and not to be trusted.

i'm using kazaa's because they are updating it all the time and it has all codecs in the world i think

Yeah, having every codec in the world *sounds* like a good idea doesn't it? Sure... if I have every codec ever known to mankind I'll never have another incompatibility issue ever again! Anyone can send me anything in any format and I'll never have to worry again!!

If only it actually worked like that. It'd be perfect. Trouble is though, we are all (well most of us anyway) using a very imperfect OS called Windows. Windows gets confused - easily. It doesn't like having to make choices. By having every codec in the world you are forcing Windows to make a choice about which codec to use when you hit it with a decode request. Often it can't decide which is the best to use so it just uses the first one it finds in the file system. Many codecs can be used to decode multiple different streams. As an example, XviD can be instructed to decode not only XviD but also DivX 3, 4 & 5 and generic MPEG4 as well. DivX will only decode genuine DivX streams. Microsoft's own MPEG4 codecs will also decode generic MPEG4 streams. That's just 3 codecs I've mentioned, but already you can see that if you hit it with a DivX or MPEG4 video, the OS can choose either the XviD or the DivX codec for DivX and the XviD or the MS codec for MPEG4. There are some 60 odd video codecs in common use and distribution. The situation gets very complicated and conflicting very quickly if you have them all installed at once. It is commonly referred to as "DLL hell".

The other thing to consider is that codecs are generally not intended to be uninstalled again. Many of them don't have uninstall routines written for them. They can be very difficult to track down and get rid of again if they don't work. That's one helluva risk to take. Fair enough if you know you can get rid of it again if it doesn't work, but what are you gonna do when it can't be uninstalled and it doesn't work? Reformat your HDD? That's about the only solution, and I've had to do that once. I haven't made that mistake a second time.

The best idea with codecs is to install the bare minimum you need to view the files you want to watch. KISS (keep it simple, stupid) is very true about codecs and computers. Install individual codecs one at a time as and when you need them - ie. when and only when you come across a file that won't play. There is a utility called AVIcodec which will identify for you exactly which codec you need and in many cases show you where to download it as well. There is no need to install cure-all codec "packs" whatsoever.

2) everything went great! just 1 last problem ....
how do i convert subs (*.sub or *.srt) from 23.976fps to 25fps ???
because now they are (obviously) out of synch

Ahhh... well well well. Now, you didn't mention that the video had subtitles in a separate file when we started this did you? You should have - then I could have saved myself a lot of trouble. I don't know how to do this. It can be done, I'm sure, but I don't know how to do it. I come across very few movies that require me to need subtitles and with English being my native language, those I do come across are generally European in nature and therefore already in PAL format. It is fortunate for me that I have the combination of English + PAL country and that foreign language (for me) also = PAL production zones, so it is very unusual for me to come across a non-english language film I want to watch in NTSC format. About the only ones there would be would come from Mexico or Japan.

You should look around the the subtitle section of tools to see what you can find. I did investigate this for myself once and came across some utilities that claimed to be able to do it, but I never actually got it to work for myself - I just don't have enough films of that type to watch to justify the amount of learning it would require of me.