Convert 29.413 Frame Rate

[d4funky1]

gspot tells me that my avi file has a frame rate of 29.413 i know that it's source was laser disc

i follow this tutorial to convert my avi files

https://www.videohelp.com/forum/userguides/186739.php#3

it works every time however it only tells you how to set up tmpge when the frame rates are 25, 23,976 and 29,97

can anyone tell me if i should follow the setup for either pal or ntsc or if there is a completely different way to do it?

thanks

[yhe2x]

well what are you trying to do?..... a VCD , DVD or what?......let us start there and what kind of file do u have..

[d4funky1]

gspot tells me that my avi file has a frame rate of 29.413 i know that it's source was laser disc

i follow this tutorial to convert my avi files

i am trying to convert to dvd as that is what the link to the tutorial is for

any ideas?

[FulciLives]

I get odd frame rates like that when I capture. Instead of 29.970fps I usually get 29.966 or 29.965

So adjust it in an AviSynth AVS script using this line:

AssumeFPS(29.970, true)

That will adjust the video and audio to your standard 29.970fps

In this instance it is a good idea to set up TMPGEnc to link to SSRC because the audio will need to have the sampling rate adjusted just a wee bit and SSRC does a great job of it.

- John "FulciLives" Coleman

P.S.
A simple complete AviSynth script might look like this:

avisource("D:\movie.avi")
AssumeFPS(29.970, true)

Looks simple but that is all you really need.

[yhe2x]

did u try to convert it yet using TMPGenc?...if not, just try to convert it at any frame rate......follow project wizard......choose DVD-NTSC and juz leave everything the same........let's see what happens.

[d4funky1]

ok

i converted the file with tmpge and what happens is this:

the video plays fine however the audio seems to slow down then speed up throughout???

i have tried the disc in my pc and it plays fine
in my dvd player it has the problem

i have tried on two other dvd players 1 played fine and the other played with the problem?

any ideas?

thanks

[FulciLives]

any ideas?

Ummm ... like take my advice and use AviSynth scripting to fix it.

Make sure you use SSRC as an audio plug-in for TMPGEnc and also use PCM WAV audio when you encode. Thos works best doing this kind of conversion. You can then convert the PCM WAV to AC-3 or MP2 later using a variety of sound tools such as BeSweet etc.

- John "FulciLives" Coleman

[awhitney]

I wouldn't is besweet to encode audio files to ac3. Its not certified by dolby digital and on some players, the video will skip. If you want to actually encode audio to ac3, use a certified encoder like Softencode.


I use to encode my audio to ac3 with besweet until I bought my $600 dvd player and the video would skip. Encoded the sound again with Softencode and the problem was solved.

[FulciLives]

I wouldn't is besweet to encode audio files to ac3. Its not certified by dolby digital and on some players, the video will skip. If you want to actually encode audio to ac3, use a certified encoder like Softencode.


I use to encode my audio to ac3 with besweet until I bought my $600 dvd player and the video would skip. Encoded the sound again with Softencode and the problem was solved.

Well right now the best cheap alternative is the AC-3 plug-in for TMPGEnc DVD Author.

Not only is Sonic Foundry Soft Encode no longer made but when it was available for purchase the price was around $1,000.00 USD if not more!

- John "FulciLives" Coleman

[jimmalenko]

I get odd frame rates like that when I capture. Instead of 29.970fps I usually get 29.966 or 29.965

So adjust it in an AviSynth AVS script using this line:

AssumeFPS(29.970, true)

That will adjust the video and audio to your standard 29.970fps

In this instance it is a good idea to set up TMPGEnc to link to SSRC because the audio will need to have the sampling rate adjusted just a wee bit and SSRC does a great job of it.

- John "FulciLives" Coleman

P.S.
A simple complete AviSynth script might look like this:

avisource("D:\movie.avi")
AssumeFPS(29.970, true)

Looks simple but that is all you really need.

Methinks I might have to get into AVISynth scripting - It looks pretty cool and effective.

[FulciLives]

A simple complete AviSynth script might look like this:

avisource("D:\movie.avi")
AssumeFPS(29.970, true)

Looks simple but that is all you really need.

Methinks I might have to get into AVISynth scripting - It looks pretty cool and effective.

Well that is all your need if you just have to fudge the frame rate a wee bit. I actually run that script once through TMPGEnc with JUST the ES AUDIO option to get a new LPCM WAV audio file. This goes super quick since you are just doing the audio. I then run it again through CCE to do ES VIDEO then I convert the TMPGEnc produced LPCM WAV to AC-3 and join the two in TMPGEnc DVD Author.

AviSynth is not that hard ... this is the complete script I use with most captures. Please note that Convolution3D is a noise filter that works wonders:

LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec3.dll")
LoadPlugin("convolution3d.dll")
AviSource("D:\capture.avi")
Trim(717,11507)
crop(4,4,-4,-12)
AddBorders(8,8,8,8)
SeparateFields() 
even = SelectEven(last).Convolution3D (0, 6, 10, 6, 8, 2.8, 0)
odd = SelectOdd(last).Convolution3D (0, 6, 10, 6, 8, 2.8, 0) 
Interleave(even, odd) 
weave() 
LanczosResize(352,480)
AssumeFPS(29.970, true)

This is the code I use for Full D1 capture of VHS material starting with a capture size of 712x480 which is the proper resolution to capture in for proper aspect ratio when using the BTwincap drivers. Notice the Resize line to Half D1 ... this can be left out if you want Full D1

The Trim command is imported using the AviSynth scripting feature built-in to VirtualDubMod

Also I think the first line is not needed with AVI source files but I leave it there all the time as habit since I also work alot with DVD2AVI D2V project files.

- John "FulciLives" Coleman

[jimmalenko]

I'm definitely gonna play now !

[d4funky1]

now this all sounds great but you must remember that this is a newbie forum and yes you've guessed it i'm a newbie.

can anyone steer me in a direction of a tutorial or where abouts i use avisynth?

it all sounds as though it will solve my problem but a step by step guide would be great to show this beginner how it's done

thanks

[yhe2x]

now this all sounds great but you must remember that this is a newbie forum and yes you've guessed it i'm a newbie.

can anyone steer me in a direction of a tutorial or where abouts i use avisynth?

it all sounds as though it will solve my problem but a step by step guide would be great to show this beginner how it's done

thanks

if u juz wanna learn more about Avisynth this might help you:

http://www.avisynth.org/

[FulciLives]

now this all sounds great but you must remember that this is a newbie forum and yes you've guessed it i'm a newbie.

can anyone steer me in a direction of a tutorial or where abouts i use avisynth?

it all sounds as though it will solve my problem but a step by step guide would be great to show this beginner how it's done

thanks

Try this ...

Install AviSynth 2.5x I think 2.54 is the newest version. That is pretty simple.

Then open NOTEPAD and type this in:

avisource("D:\movie.avi") 
AssumeFPS(29.970, true)

Make sure you of course put the proper DIR and PATH info for your file.

Simple still right?

Now save the file but make sure you change the option entitled SAVE AS TYPE to ALL FILES instead of the default of TEXT DOCUMENTS (*.txt) and be sure when you type in the file name you add .avs at the end of it so it looks like this ---> filename.avs

Now you have an AviSynth AVS file that you can open directly into TMPGEnc as well as other programs such as VirtualDubMod or CINEMA CRAFT ENCODER etc.

If you are using TMPGEnc I suggest you set it up to use SSRC which is simple to do (look under the AUDIO TAB in the set-up portion of the program) and convert to LPCM WAV audio. This seems to work best. You can always afterwards convert the LPCM WAV audio file to MP2 or AC-3

See isn't that simple

- John "FulciLives" Coleman