DV Sound extraction and editing

[ManInTuxedo]

Peoples,

I have a need to extract the audio track from a DV AVI, edit it (apply gain and then a noise filter), and then put it back together with the video. What is the best way to go about this?

I've been looking around and I haven't seen anything that answers my questions yet. Perhaps I have been looking in the wrong place? I have an audio progam (audacity) that will do the audio editing, I just need to know how to extract the audio and then put it back without losing sync etc.

Thanks so very much for your help.

-ManInTuxedo

[Foambullet]

I havent tried this but logically it should work...

Open the DV in Virtualdub, go to audio and select direct stream copy, then save wav. Edit your wav. Then open the DV avi again in Virtualdub, go to audio, and select wav audio, and select your edited wav. Then set both video and audio to direct stream copy. Save the avi and that should be it.

[DDogg]

Just a small caveat to Foambullet's advice - So long as it is a DV type 2 file you are good to go, if it is a Type 1 VDub will not load the audio. Workaround by using the Canopus or ULead free converter to convert to type 2

[bb]

You can always save a WAV file from your favourite video editor like Premiere, MediaStudio Pro, Vegas, etc., even if your source is type-1.
Then you edit the audio file, and later you add it back as an audio track.
This way you don't need to convert to type-2, but although this looks like a quick way of handling the audio, it may be a time consuming process depending on how your video editor treats the audio. E.g. extracting the audio track may easily cost you half an hour. I remember that an old light version of MGI VideoWave was pretty quick in extracting to WAV.

bb

[ManInTuxedo]

Thanks for your help guys. I've followed your instructions and they work really well.

Now I have the wav to edit and play with. Which is looking to be harder than I first expected, mainly due to clipping when I apply gain.

Thanks again for your help.

-ManInTuxedo