avi2dvd audio disappears midway in resulting dvd image

[Dm32]

I am trying to convert a 3 1/2 hour avi file to dvd. but i notice that the audio disappears after some time. ive done the conversion twice now, and the audio disappears at different time. at the first conversion it disappeared after ~ 1 hour 45 min, 2nd conversion after ~2 hours 20 min.

Audio works fine and then after that point its like someone turned on the mute switch.

Now I did only 1 thing different for the 2 conversion, and that was to change to audio output from 192K to 128K the 2nd time.

My thought is that the program runs out of room on the disk for the audio b/c its a large avi file (3.5 hours)? Is that the case, or should i look else where.

2ndly, but a little less importantly.
When I leave the avi as it is and convert, the output dvd has audio that seems to pop and crack and spit all the time, you cant listen to it.

What I do is run vdub and convert the audio to wav format for the avi, then the dvd output plays great audio wise.

Why is this?

[Nick]

Sounds like a filesize issue on the audio file.
However, logfiles, as ever would be helpful.

As for the other issue with the cracking and popping, set Autodetect Azid gain in the audio tab. I suspect you are using a fixed gain and it is causing the audio to distort.

[Dm32]

Unfortunately I do not have the log file as I deleted and decided to split the disc into 2 DVDs.

But may I ask this:
Should I set the same bit-rate for audio for the dvd image, as the original avi has? To elaborate, I mean if the avi has 224 bitrate, should i set the bitrate of the dvd to also be 224 (in the audio tab)

Also if I may inquire, could you elaborate filesize issue with audio you mentioned above? What do you mean, the audio was too much to fit on the resulting dvd, or it was corrupt to beging with?

[Groasnicu']

I think after the conversion the avi file it is over 2 GB (limitation of avi file).
You did good with spliting and you could set the bitrate at any value you want (from DVD specification of course)

[svcdprayer]

its true friends!

i have same problem.

1.2.3b1 audio is not properly extracted. audio dissapears on every avi, captured 1:1. selection avi2dvd.

However 1.2.2b3 has audio fixed for me and works well, im waiting for dvd2svdd to fix this when he gets time :)

Tips are no needed because we all know how to fix if someone insist on frameserving with vdub and vafi :)

Same problem with internal routines or that other routine available.

Hopefully DDog might support dvd2svcd with some avis to fix it, i would but i dont have good speed, unfrontunately.

I have question to nick if he can pass this bug to dvd2svcd since bug tracker dosent work anymore on his site.

Take care guys,

Thanks alot!

[manolito]

@svcdprayer
Are you sure you have selected "Internally" as your audio extraction method? Selecting "VFW" mostly does not extract the audio completely on my captures, but using D2S' internal extraction routine works perfectly for me.

It does make a difference though if I captured the AVI with VirtualDub or with VirtualVCR. If the AVI was captured with VirtualVCR, I have to load it into VDub and resave it with "Direct Stream Copy" enabled for both audio and video. If I don't do this, D2S will not extract the audio properly. If the AVI was captured with VirtualDub, this additional step is not necessary.

Cheers
manolito

[svcdprayer]

@manolito

thanks for the tip my friend :) interesting.

yes im sure about the internal routine, but what you said its interesting.
i have pinnacle capture card (studio 8) and im using scenealyzer as capture software :) so that could be it, for sure then. because i never used vdub as capture software

i have tested VFW and internal using scenealyzer and same result. but if you try to capture via virtualvcr using 1.2.2b3 im pretty sure audio with internal extraction method will work. please try out and let me know :)


Thanks!

BTW i must use scenealyzer because vdub dosent support pinnacle studio its only possible to use bt capture cards with vdub.

[jikchung]

svcdprayer-

Are you capturing to DV AVI? If so, I would capture with DVIO to type 2 DV AVI. This is my procedure and I have no audio issues.

This is with a Studio8 card, and I edit in Vdub, process with dvd2svcd.

[svcdprayer]

jikchung:

im doing tv capture not from the camera. but if you think with dvio is possible to capture from tv tell me :)

Thing is its possible to frameserve via vdub and it would work, but what im trying to say here is this :

theres bug in the dvd2svcd avi2dvd with audio extraction it dosent work with every possible capture software this newer version 1.2.3b1, while 1.2.2b3 audio extraction works perfectly. tell me if anyone had problems with audio extraction from 1.2.3b1 ?

because i never had, and why i moved to 1.2.3b1 is because of intserted capture 1:1 so i dont need to edit ini file like i did in 1.2.2b3 but now audio dosent work :))

Take care ppls!

[manolito]

@svcdprayer
Sorry but I cannot reproduce the problems you have. I have never used 1.2.2b3 because of the AVI resizing issues, but 1.2.2b1 behaved exactly like 1.2.3b1 concerning audio extraction. Capturing with VirtualVCR would only work with the VDub resaving trick in 1.2.2b1, too. Maybe it has something to do with the codec you use for capturing. I always capture with the PICVideo MJPEG codec. Which codec are you using with scenalyzer?

Cheers
manolito

[svcdprayer]

@manolito

I dont think theres problem with codec we are using, im not using the same but if you want to test 1.2.2.b3 for avi resizing do the following:

backup avisynth.ini file

In avisynth.ini file edit :

For 0=BicubicResize(^TargetWidth,^TargetHeight,^b_value,^c_value)
you replace for example ^TargetWidth with ^p_value and ^TargetHeight with ^q_value

then after
^b_value=0.0
^c_value=0.6
add these lines:
^p_value=352
^q_value=576
and save file. then rerun d2s again.

Thats how i fixed avi resizing to get 1:1

Try this and i hope audio extraction would work for you wih vdub and with virtualvcr :)

Let me know how it passed :))

But yes: 1.2.2b1 and 1.2.3 same problem with audioextraction like you said.

Thanks!

[manolito]

I know this workaround for 1.2.2b3, but it does not help me too much, because I always use FACAR or AutoFitCD, and both of them do not work right with 1.2.2b3.

Anyway, I do not have this version any more, so there is no way for me to test it.

Cheers
manolito

[svcdprayer]

@manolito

i see, well at least we pointed out the problem so hopefully in next release d2s will fix it, i just hope that nick or ddog point him that out

Cheers, and thanks!