digitalFAQ.com Forums [Archives] - Problem with Audio while converting AVI to KSVCD ?

digitalFAQ.com Forums [Archives] (http://www.digitalfaq.com/archives/)

- Video Encoding and Conversion (http://www.digitalfaq.com/archives/encode/)

- - Problem with Audio while converting AVI to KSVCD ? (http://www.digitalfaq.com/archives/encode/11917-problem-audio-converting.html)

Problem with Audio while converting AVI to KSVCD ?

Hi...I'm facing problem with audio while converting AVI to KSVCD. I'm facing an audio time lag. I created the KSVCD using Virtualdub (to seperate the audio and video), BeSweet ( to convert wav to mp2) and tmpgenc for multiplexing.

I used 128KB/s and 44100 rate to convert to MP2,but the audio and video is not in sync. Do I need to use a delay during conversion to MP2. If that be the case,then wat is the way to calculate the delay ?

Any pointers on this will be highly appreciated.

thnx

Post more about your encode.
Are you going from ntsc to pal or visceversa?
Are you changing framerate?

Thnx for ur quick reply...

Here's the original audio bitrate info I got from GSPOT.

Bitrate : 384 kb/s (6 ch) CBR
Fs : 48000 Hz

Here's the script for BeSweet for converting it to Mp2

"D:\Software\Util\BeSweet\BeSweet.exe" -core( -input "d:\Documents and Settings\sbandopa.AMER\My Documents\My Music\Torrent\AT56\AT56-1.wav" -output "d:\Documents and Settings\sbandopa.AMER\My Documents\My Music\Torrent\AT56\AT56-1.mp2" -logfilea "D:\Software\Util\BeSweet\BeSweet.log" ) -ssrc( --rate 44100 ) -mp2enc( -m s -b 128 -e ) -profile( ~~~~~ Default Profile ~~~~~ )

Original avi file is in NTSC and I'm trying to convert it to PAL.I've used
SKVCD-352x576-_PAL_.mcf template for TMPGENC.

I'll appreciate if u can assist me further on this.

Thnx in advance

Quote:

Originally Posted by back2grave

If you are using avs script with assumeFPS(25) line for ntsc to pal convertion, that is once of the corrects ways to do it (don't convert it directly with TMPGEnc without avs script), your need to select in besweet ota options 23976 to 25000, and as I supose your source has ac3 sound, you need to check use ac3 decoder in Besweet. Also it is better dual channel than stereo mode.

Quote:

Originally Posted by Your new Besweet command line------------------------------

"D:\Software\Util\BeSweet\BeSweet.exe" -core( -input "d:\Documents and Settings\sbandopa.AMER\My Documents\My Music\Torrent\AT56\AT56-1.wav" -output "d:\Documents and Settings\sbandopa.AMER\My Documents\My Music\Torrent\AT56\AT56-1.mp2" -logfilea "D:\Software\Util\BeSweet\BeSweet.log" ) -azid( - s sorround2 -c normal -g max ) -ssrc( --rate 44100 ) -ota( -r 23976 25000 ) -mp2enc( -m d -b 128 -e )

Well..it seems the audio and video are not going to be sync no matter how hard I try..I guess,I've tried all possible combinations in BeSweet,but the problem persists.....any pointer ?

Can you post your avs script?

I guess I'm not using any script for conversion. I'm simply seperating video and audo thru virtualdub,converting the avi to m1v thru tmpgenc,avi to mp2 thru besweet and finally multiplexing them together thru tmpgenc.

I'll appreciate if u can let me know how to use a script for coverting avi to ksvcd.

Are you going from PAL to NTSC or vice versa?
To learn avisynth visit www.avisynth.org