How To Use Izotope RX's Spectral De-noise to clean up noisy podcast recordings.

[@tkelong3569]

Thanks for taking time out to make the video. Sounds pretty good but that 2nd pass on the example in the 8 minute range, sounds boxy, 1st pass sounded better.

[@jesse.mccune]

I agree that the second pass wasn't ideal. Capturing a noise profile in that way is challenging, especially when doing it live, and the goal was to demonstrate how to capture a profile in that scenario. Ideally, I would use Voice De-noise as the second pass to clean up the noise embedded in and between the words. These days, I'm not even using Spectral De-noise, or RX's standalone editor anymore because I can get comparable results in less time with newer tools. The other thing to keep in mind is that I'm not going for perfection when I edit and clean up podcasts. People are more likely to stop listening because of noisy audio than if it sounds a little boxy, so that is what I'm aiming for.

[@living-wisdom]

@@jesse.mccune I'm curious to know what the 'newer tools" are that you find preferable to RX editor, etc.

[@jesse.mccune]

@living-wisdom When I say that, I'm talking about plugins for de-noising and de-reverbing dialog. I'm still using some RX modules like Mouth De-click, Voice De-noise and De-plosive as plugins. The newer tools are Supertone Clear, Accentize dxRevive, and Cedar Audio VoicEx. You can check out this video where I compare them against the new Dialog Isolate plugin from RX11. kzbin.info/www/bejne/l4arnZh5jNWla6M I will say that I edit podcasts, so plugins work for me. If I were doing something like an audiobook, I would use the RX editor for a number of things. The RX editor has its place, but for my day-to-day needs, I prefer to do all my work in my DAW.

[@ericfischer5605]

Nicely explained. I would have have first run a high/low cut EQ to roll off some of the very high end, and all of the garbage under the fundamental of the voice with a very steep low cut filter. Removing these frequencies first makes for a little less work for the spectral noise reduction module to deal with. Not sure it matters, but it makes me feel better :-).

[@jesse.mccune]

Since I run De-plosive later in my chain, I don’t run a low cut. I typically just handle that as part of my EQ during the mix phase. Running it before or after shouldn’t make a noticeable difference to the result of the de-noising, but the De-plosive module needs that low end energy to work properly.

[@James-tk2yl]

Thanks a lot!

[@jesse.mccune]

You're welcome! I'm glad it was helpful.

[@jefjaeger]

Everyone keeps saying that you have to find an area where there is only noise to take a sample from. Some recordings do not have that option. I have a voice and some cell phone clicking getting on the lav mic. The noise occurs during the voice. Apparently, I can't remove the noise then, only mitigate it. Frustrating.

[@jesse.mccune]

Spectral de-noise isn’t the best tool for your situation. Have you tried Voice De-noise? If that doesn’t work, you could try de-click or maybe painting it out in the spectral editor. Intermittent sounds like that are the worst. It’s something I don’t bother with for client work. In my opinion, the ROI just isn’t there.

[@jefjaeger]

@@jesse.mccune A combination of declicker and decrackle have been the best so far, but I was hoping to go surgical. The spectragram shows the noise takes up a lot of real estate. Painting it out effectively seems unlikely, but I could of course experiment. But yeah, that would have to be on my time, not the client.

[@TawakalGTC]

How will you then export the audio? Tried to export it multiple times but the result non audio empty paper like thing.

[@jesse.mccune]

Here's a short video showing how I export a file out of RX. www.loom.com/share/535c3f033b27460b9f33190f71a734a9?sid=c7837880-5747-4216-8eee-a6768c0890fc

[@OneStepToday]

how to use it for live streaming audio, the spectral denoise?

[@jesse.mccune]

You won't be able to use Spectral De-noise for live streaming. It's built for post-production and not capable of processing live audio.

[@OneStepToday]

@@jesse.mccune its working for me nicely via Light Host, on Voicemeeter Banana. Its not too heavy.

[@danzai]

I used steelseries Sonar for this. It's perfect at denoising live.