Help With Audio Filters

[wanghoeby]

I'm putting together a video and would like to remove the whine from my Canon ZR25. I've tried many different filters in Premiere with no luck, though it's mostly been guess and check work.

Here's the hiss.



The project is due by Friday, and I've got too much other shit going on to do any serious searching. Hoping for the quick answer from someone on here.

Thanks

[Tippster]

You'll need a phase converter, or plugin to do so. I believe there are several available online - prolly shareware, not freeware. Go Here to look for one.

http://www.download.com/3120-20_4.ht...mover&tag=srch

A really clean way is to record just the normal operating sound in a sound proof room (if it's only the Camera, as you think) then slap it 180deg (or is it 90? I blame the weed) out of phase and mix the two audios together. The resulting audio track should be cleaner since the hiss cancels itself out. This is why many editors request "roomtone" for bigger production shoots. Basically at the end of a big interview everyone shuts their hole and you record 1 minute of "silence" without changing the gain. That way if there was dimmer or fluorescent hum, or that low roaring of some AC systems, or any other ambient noise during those exact shooting conditions you can virtually "erase" them by mixing in an out-of-phase version. Pretty cool shit actually, like sonic polarization.

[wanghoeby]

I didn't even think about that, I think there's actually an invert filter. Wouldn't that work if I applied it to the sound proof version?

I'll have to try it out and see what works.