How do i remove high pitch microphone feedback in fcpx in post?

How do i remove high pitch microphone feedback in fcpx in post?

Give iZotope RX3 a try. There's a trial version (not sure if there's any limitations) but the full version is $349 and over $1000 for RX3 advanced.

and once I am in the app what do i do???

What filter will knock off the highs

Try Spectral Repair with standalone version of RX.

www.dropbox.com/s/g58oh98863re5k5/Feedback.m4a

Here's the mess I have to clean up the Officiant had his own sound system.
Is this beyond hope to completely fix?

I second for isotope RX.
I use the RX3 advanced.
Here is a short video tutorial on feedback removal:
www.izotope.com/products/audio/rx2/protips.asp
I did a quick cleanup on your dropbox file:
www.fileswap.com/dl/CLeWQLSLMQ/

Succes with it.

Nice clean up job.

Please relate the settings that you used please

I picked up RX3 Advanced at a big discount, and I'm so glad I did.

Unfortunately all the good stuff is only in the expensive version- dialogue denoiser, de-reverb (which actually works)...

Super expensive, but will save your ass with bad sound.

The only issue I've found (and this is totally not the fault of RX3), is that whoever's recording sound on my shows is just recording too bloody low. So the waveform is nowhere near as beefy as it should be, and thus the signal to noise is testing even RX3s ability.

Telling the exact settings is a bit difficult.
As it is not a single click repair.
Have you looked at the link I posted?
You need to load the file in iZotope, and look for constant vertical lines in the spectral diagram.
For this you move the slider from the bleu waveform to the orange spectral diagram.
You select the feedback with a rectangle (you can preview the selection with the play button with the square around) and after that you click on spectral repair and choose vertical direction and surrounding around 90 to 100%).
After that you progress the file and the vertical feedback line is gone.
Be aware that you need to do this multiple times as there are several feedbacks (in time, but also in frequency (read: higher on the spectral diagram).

Brilliant I now understand after your explanation and the video.
It works brilliantly

thank you Patrick and FCP.co

You guys are scholars and gentlemen!

oh and gentle-ladies.