Audio too fast? [Archive]

robbocop

24th July 2003, 23:57

Hi,im using DVD2VCD and Cinema Craft Encoder to convert AVI files to SVCD,s,every file i've tried to do the audio track is really fast,the voices of people talking sounds like chipmunks,anybody suggest anything to try?The same problem occurs when i use TMPEG within the DVD2VCD program too.Any help appreciated!

TactX

25th July 2003, 09:36

Welcome to the forum :)

I've never used DVD2SVCD, so I propably can't help you.
But maybe the forum search function (http://forum.doom9.org/search.php?s=) can. Also make sure you have read the DVD2SVCD FAQ. And next time you ask a DVD2SVCD specific problem, make sure you post it in "DVD2SVCD Basic Topics".

jorel

25th July 2003, 12:49

the audio is fast in pc and/or in dvdplayer?
where you got this problems?

robbocop

25th July 2003, 15:38

when i play the mp2 file that has been encoded on the PC it is fast,when i play the mp2 wav that has been encoded on the PC it is ok,so it sfast audio on PC and DVD player

joshyg2

25th July 2003, 16:44

what is the sampling rate of the audio encoded?

robbocop

25th July 2003, 17:42

In the audio section of AVI2VCD i have chosen 128 bit rate and to downsample from 48khz to 44khz.

jorel

25th July 2003, 17:51

try encode your wave to mp2 using HeadAC3he or BeSweetGUI.
adjust the "audio delay" if needed!

:)

joshyg2

6th August 2003, 09:29

yeah, you set-up AVI2VCD to downsample, but is your source 48000 ?

If your source is 22050 or 32000 the software you are using could be playing the audio back at 44100 or 48000 instead of resampling it.

This will cause the audio to speed up.

To check your source, load the file into VirtualDub and click:

File > File Information.

It will tell you the audio sampling rate.

zur128

6th August 2003, 23:08

Also check whether the source audio is stereo or mono. If it is mono, then the encoding will compress the audio time by half (giving the chipmunk sound). You may need an external wav editor to either add a stereo sound or change sample rate etc. When DVD2SVCD has finished, just pick the *.wav file that has been extracted and play around with that until you get it into the proper format.

pepsimaxx

2nd December 2003, 01:58

Sorry for brining this old thread to life again but I need som help.

I have a .avi where the sound is 48000Hz and in Mono. How do I go about converting the sound into something DVD2SVCD can use properly? Please explain step by step.

joshyg2

19th December 2003, 18:50

all you have to do is convert the mono audio, to stereo, then DVD2SVCD will work.