AVi and audio cutter?

[espen21]

I need an avi cutter tha also splits the sounds.. for example : Movie cd1.avi movie cd.wav and movie cd2.avi and movie cd2.wav... Does anuone have any suggestions for what i should use?
/espen21

[danib666]

virtua dub will extract the audio to wav for you and can also cut the avi (not sure how to use it to cut though)
if you're encoding to vcd/svcd then tmpegenc can cut the resulting mpeg whilst encoding by using the source range feature

[KingJohn]

Yep, Vdub

Load into Vdub and move to end of movie to get frame count, then divide by 2 to get middle of movie.

Goto start, mark as start
Goto Middle, click the yellow keyframe icon back once, mark as end
SAVE AVI

Goto middle, click keyframe forward once, mark as start
Goto end, mark as end
SAVE AVI

Now reload each AVI

Audio > full processing mode
Audio > compression > PCM (Default)
Audio > conversion > 44.1khz
SAVE WAV

[banjazzer]

Nandub is better, because not only will it handle ac3 audio (and vbr mp3 better), but it will allow you to cut the DivX to a specific size in MB.

[KingJohn]

Someone mention AC3 ?

[banjazzer]

I don't know where you are looking, but I see an increasing number of DivX with AC3.

[KingJohn]

DVD rips usually are, but to assume they all have AC3, or all need the WAV extraction is not needed.

[banjazzer]

I don't make that assumption, but Nandub is only a modified version of Virtualdub which has extra capability. In terms of cutting, Nandub can do everything that Virtualdub can, and more. Can you specify where to make a cut in MB using Virtualdub?

[KingJohn]

Can you specify where to make a cut in MB using Virtualdub?

Yes, Goto frame mark as start .... goto frame mark as end.... 8)
Mb is proportional to the length of the movie a 300Mb file which may have 8000 frames would be 4000 frames for 150Mb

[banjazzer]

Unfortunately, it does not work out like that. Splitting a DivX in half by number of frames does not mean that you have split the DivX in half by size. 8) Frequently it is way out. Splitting into equal numbers of frames splits into half by time, not by size.

[KingJohn]

Its going to be close, However splitting a file exactly in MB can split at delta frames, and not to the nearest keyframe, if those keyframes are far apart, you going to end up with something that may give problems if used in later conversions.

You could do exactly the same as Nandub by using the multisegment file save capability File > Save segmented AVI But this can like NanoDub produce corrupt AVI's

It is not recommended that you use the multisegment file save capability to split AVI files. The reason is that VirtualDub does not guarantee that subsequent segments will start on a keyframe, and thus the beginning of the second file will probably be unplayable.

So use Nandub to trash your AVI's

[banjazzer]

Its going to be close,

Actually it is very often far from close, because of variable bitrate encoding. I suggest you try a few to confirm what I say.

So use Nandub to trash your AVI's

I think maybe you should actually take a look at Nandub before dismissing it. The command is "Jump to last key in the first xxxMB"

[KingJohn]

So if you "Jump to last key in the first xxxMB" then your not cutting in MB as you first said then

Why assume the source may have a VBR, why assume it has AC3 ?. I assume nothing until I can see its not..

espen21, I hope you appreciate all this we are doing for you
Send us the files, its quicker to do it for you

[banjazzer]

So if you "Jump to last key in the first xxxMB" then your not cutting in MB as you first said then

Oh dear. Pedantry, the last resort of the lost. 8)

Why assume the source may have a VBR, why assume it has AC3 ?. I assume nothing until I can see its not..

You obviously don't come across many DivX. Most now have VBR audio, and an increasing number AC3. In any case, Nandub works with all of them.

[KingJohn]

Well its obvious your not going to admit your wrong, jumping to a keyframe is never going to split it in Mb, Divx 5.02 uses keyframes every 100 frames, how many MB difference is that ?

As for how many DVD rips I have downloaded, I have lost count, few have AC3 many have MP3, those who know about the problems now use MP3 and CBR

If I download 50 DVD rips in a weeek, only 2 or 3 will have AC3, I will convert them and upload them to T1 Node's

[banjazzer]

OK, the first DivX(5.02) I find is 8.48MB. It has 11 keyframes. The second, 61.4MB has 75 keyframes. The third 98.6MB has 140 keyframes. So, a little simple arithmetic should show you that cutting at a keyframe will still enable you to cut to a desired size in MB with pretty damn good accuracy. 8) And you cannot do that with Virtualdub. I would very much like to see you split a 1395MB DivX to 2 discs.

And you seem to miss totally the point I was making. Nandub works with AC3, CBR mp3, VBR mp3 and ABR mp3. It is only a modified Virtualdub.

Really, before trying to rubbish it further, don't you think you at least ought to examine what you are attempting to rubbish?

[KingJohn]

Not at all, I'm not attempting to rubbish any Vdub rip off. After all I use the MP3 version myself, it is you who is attempting to rubbish the standard version as not being able to cut up an AVI into chunks.

You started this with stating that Nandub would cut into MB chunks, but then as soon as I dismissed this as useless because it might cut at delta frames, you added that it would jump to a near keyframe, in doing so it would no longer be an accurate cut in MB

With a little trial and error, it would be easy to use Vdub and save segmented file, to produce the same.

Closed

[banjazzer]

it is you who is attempting to rubbish the standard version as not being able to cut up an AVI into chunks.

I never ever said Virtualdub could not cut up an avi into chunks. I used to use it myself until someone pointed out there was something better. However, I was grateful for the advice I received, rather than deciding to enter ostrich mode.

You started this with stating that Nandub would cut into MB chunks, but then as soon as I dismissed this as useless because it might cut at delta frames, you added that it would jump to a near keyframe, in doing so it would no longer be an accurate cut in MB

As my previous post should have demonstrated to anyone with the most tenuous grasp of basic mathematics, cutting into MB and cutting at a keyframe are not mutually exclusive events. It cuts to the last keyframe in the number of MB that you specify. As you should be able to work out, there are more keyframes than MB in a typical avi.

With a little trial and error, it would be easy to use Vdub and save segmented file, to produce the same.

Fine, you use trial and error, I will use an exact method. There are none so deaf as those who don't want to hear.

To the others whose minds may not be so closed, don't take my word for it. Certainly don't take KingJohn's word for it. Try both tools and see which works best. 8)