VirtualDub: horrible clicking sounds in audio
 

:?

I made a small movie with my digital camera in AVI format. Playback through PowerDVD was fine, but once I converted it to MPG for use as a VCD, the sound was making horrible clicking sounds at regular intervals. I used GSpot to learn what the sample rate was and what codecs were used to make the original AVI (8kHz). I then used VDub and converted this sample rate to 44.1kHz. This solved the clicking problem (seems straight forward enough).

Well,... now I have a downloaded DivX that GSpot says is sampled at 22kHz. So, I use the same procedure as noted above, because I believe this to be necessary. I then sample the new AVI that I made at a 44.1 sample rate and it plays the audio at twice the original speed (if not faster). So, I decided to play it back normally at 22kHz and it plays fine.

Is there a more reliable means of knowing when it is necessary to change sample rates?

Thanks for your help.

100571

Its only necesary to change sampling rates if you want to play your film in a standalone DVD player...try using VirtualDub to extract the audio and then HeadAC3he to upsample.