Now you will find that you have a lot more lattitude to play with before strange noises get in the way. Right, if you want a quick fix then before you take your noise sample, alter the FFT setting to the highest it will go. So thanks for posting, ArialBurnz, but I'm afraid you've only just scraped the surface! Bob's method of doing multiple passes at different rates is definitely the way to do with Audition's NR, but you will always get better results in terms of remaining artefacts from higher FFT settings. The downside of course is that processing takes significantly longer. The higher FFT sizes mean that signal slices with HF in get dealt with much more accurately, hence less 'bubbly' noise. The reason for this is that you get many samples of higher frequency sound within the wider window, and the processing simply can't do anything with it. Since the FFT size essentially determines the window width, lower settings are really only much use on low frequency noise, and they are the ones responsible for most of the strange sounds you hear in the rest of the frequency range. You can get way better results from much higher settings, almost regardless of what sort of noise it is. In fact, you generally don't want to take off very much at all at FFT4096. Adjust the three settings mentioned above until you have the desired effect.Put the audio on loop if it's a short clip and click the play button to hear a sampling of the noise reduction applied.It was this final setting that made a HUGE difference! Under the "Advanced" section (you may have to click on the little triangle/arrow to expand it), the Spectral Decay Rate (10%).In the window that appears, I played around with three settings (see image below):.Get ready to apply noise reduction: Effects > Noise Reduction/Restoration > Noise Reduction (process) OR CTRL + SHIFT + P.Perform the usual procedures of selecting the background noise and sampling it (SHIFT + P). So start with your original audio with the noise, then. So we're preventing the echo during noise removal, not getting rid of it.if that makes sense. You'll want to follow the steps below as your method of noise reduction, not after the fact. However, I didn't give up and after playing with some of the settings, I believe I've figured it out! I'm using Adobe Audition CC (6.0). I had a dickens of the time trying to find out how to reduce the echo that is left after background noise is removed.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |