Thanks for the video! Using your technique, I located three fairly major peaks. When I played the three hz tones together online, it recreated the nasty background noise almost exactly!

Wow! This tutorial and your channel deserves a lot more subscribers than what you have! I sometimes wonder why on Earth all unwanted videos get so many likes while something this informative and productive gets unnoticed. Nevertheless, this is going to be one of my favourites in 'What did I learn today!' Thanks so much for your tutorial and cheers from Bangalore, India :)

wow incredibly effective, man.. i've been missing out! had someone recommending it but never tried it out :)

This is so much better than paying $250 dollars a month for notch therapy

I always prefer notch filter over broadband noise reduction or spectral editing, because of the precision at high Q. With minimum phase I can't hear any artifacts. Noise reduction would make the sound hollow or plastic like mp3. I like to use an equalizer plugin that allows me to continuously preview the processed audio as I sweep and finetune the frequencies. I input all identified peaks in one go, because I can only hear their combined effect, and cannot be sure that a notch is precise if other louder peaks are still present. I use an old TC Electronics parametric EQ most often. FFT based Noise reduction in theory allows to keep a signal untouched if it is over the threshold of the whistle. But in practice, if the notch is narrow enough, the created gap is not audible, and often not even visible in later analysis. The effect of NR however is audible, as the shape of the background noise gets changed dynamically as the processing attacks and releases (mp3 like effect). Notch filter is especially preferable at low and mid frequencies.

Thank you Phil. Helped me understand this and I’ll be trying it soon.

This video is extremely helpful. Thanks for putting it together!

Thanks. Very helpful.

Glad you liked it. Now get rid of those hums....

Very useful!

Use the built in Analyze > Spectrum as shown in this video and also the link shown in description which may be a bit clearer. Hover your mouse pointer over the highest spike and it will tell y ou the frequency at the bottom.

great... thanks

Helped me a lot thanks...your voice reminds me of Heath Ledger the Joker (The Dark Knight)

If you can isolate the Tick frequency and run a notch filter on that, then do the same on the Tock. ??? That's what I would try. Use the Analyze>Spectrum to get the frequencies.

I tend to have a high pitched whistle on my recordings? how do I identify this in the frequency analysis?

hello , what should we take as the default value for 'Size' during frequency analysis ?

I found this to not only be a poor explanation, but it took forever for this guy to get to his point, which was pretty much useless. Shift it up a few gears, Phil.