How to remove noise and normalise the voices in a video file

[dcmwong]

Now that I have captured the clips from my DV, edit it and added transition events to it, I thought I have finished with my video file and ready to burn it to VCD. However, when I played the file, I found that there are many noises. Moreover more important is that my voice is always very loud, because I was the camera man and thus closest to the microphone of my DV camcorder. But the voices of those I focus on (e.g. my wife, my friends, etc.) are very low, because they are comparatively far away from the microphone.

Is there a way for me to make all the voices to be in similar loudness? Is there any freeware tools for this? Also I wonder whether there are any tools which can also help to remove the background noices from my video?

Thanks a lot in advance for your help.

Regards,

- David

[musicnyman]

these noises are probably the interlace fields in the DV file. when converting to a non interlace file, use the interlface filter in your encoding program,i use tmpgenc to do this. also, you can get an external plugin to normalize (even out the highs and lows) before you create the vcd. i'm pretty sure toolame does this with certain variables in tmpgenc. i saw the option last night but havn't tried it.

[D_Knife]

Grab yourself an external microphone for your camera for the next time.
internal mic's can pick up internal camera activities.
most camera's can accept multiple audio sources, one on your hotshoe attachment for distance work and another mic as a lapel mic for yourself using the audio in ports. Even better if you don't want yourself on the footage.
As for this time, you might be able to extract the audio out and modify if somewhat with something like Cooledit or SoundForge (cooledit should have a trial period) but I don't know of any freeware tools that will give you the precise control of just increasing volume of certain freqency's you need to.
Cooledit 2000 - http://www.syntrillium.com - demo available
Soundforge - http://www.sonicfoundry.com - demo available

Good luck with this - this is will be very difficult to complete

[Dragonsf]

With cooledit you can use the dyn-compressor feature:increasing low volume and decreasing loud voices.Thus reducing the dynamic, but the end result will be much better understandable.Use the noise filter for reducing the background noice.
You shouldn't use normalize before dynamic compression.