elkebjelke wrote:
I have a really heavy noise pattern on my clip due to an error on the microphone, the normal steps of marking the noise pattern and using the Noise Reduction Process filter helps but gives me a terrible audio quality and some of the noise still remains.
What you've got here is traffic noise - and because it varies all the time, there's no way to get a sensible noise print - and accordingly it's not much use. What NR does best is to remove static noise.
elkebjelke wrote:
I have found a good way to filter out the high frequency beep-noise, but is there a way to filter out the distortion-noise?
Or if I do like I've done until now and remove everything above a certain frequency, how can I improve the sound quality?
You can't filter out distortion at all - no software can (explained more in some other posts recently - read around the forum a bit). If you remove high frequency sound, you may well remove beeps, etc but you will inevitably remove wanted audio as well - you can't restore sound quality if there's nothing left, because you have nothing to base it on! Beeps are best removed by isolating them in the spectral view and removing them manually using the selection tools provided.
What mainly seems to be wrong with your recording is that the mic was nowhere near close enough to the speaker on camera. With this much traffic noise, anything less than a closely-held shotgun mic, or a lapel mic close to the speaker's mouth really isn't going to cut it; you need a much greater proportion of wanted sound to unwanted sound, and the only ways to get this when you are surrounded by this much noise are the ones I just mentioned. You really can't fix this satisfactorily in post at all.
