iZotope RX Tutorial - How to Remove Tonal Background Noise from Dialogue

Does your audio have background noise from a refrigerator, generator, room tone, or other source? Here's a tutorial on how to use DeHum and Dialog Isolate in iZotope RX to remove tonal background noise.

[spencerchamp]

Learned more in this vid than a semester long sound design course. Thank you

[matthewmutton]

These tutorials are such a valuable tool to anyone looking for advice and help in Audio Post. Thank you for making them

[justkallmekai]

I'm dialogue editing right now and am dealing with this exact issue. Thank you for the tutorial! Perfect timing!

[jefjaeger]

I had always learned that numerous processes being done to a single recording degrades it. It sounds like you have gotten better results doing several small processes...

[tiagolorena]

To clean up that type of filtered broadband noise I use Spectral DeNoise in a specific way (that's actually the only way I use that module). After you hit learn you'll notice that the range of that noise sticks out in the Noise Profile curve. Make sure Reduction Curve is enabled, grab that curve (the blue line) and drag it all the way up for the entire frequency range. Now add anchor points on the blue line just outside that filtered noise that's poking out and drag down enough points in between so that the Residual Noise curve (in yellow) looks smoother. Set your Reduction slider to taste and hit process. Give it a try, that usually does the trick. 😉

[inmotionaudio]

Thanks for this tutorial, we've just started dabling in RX10 Advanced from RX7 Elements, we found this tutorial really helpful and its opened up a whole new learning curve, but very helpful thank you

[JoelLinus]

I've embarassed myself today trying to get a gig as a VA Mastering dude for a Mod (No money involved), they couldn't take me because I didn't know what I was doing with Dialogue, since I've been learning how to work with music, not dialogue for films or videogames, this is a good insight into what is possible with RX, and I feel like with all that content out there, there are just a few that really explain how this software works, like this video. I'll do my best at getting the gig for my own good, I need that confidence for my future.

[massimilianoborghesi]

Great tutorial, thank you! I'd love to see a tutorial on how you clean nasty lav rustles and scratches 😃

[KellyAskam_MindExchangeMusic]

Great video! Thank you, Thomas! Regarding broadband noise, I've found some interesting results with a very (-2/-3db) DX isolate pass on everything and then layer DX isolate for above 700-1khz and then Deconstruct below 300-700hz. Seems isolate retains the airiness of the dialogue whereas deconstruct will think it's noise. Deconstruct down below seems to find that noise between the harmonics better whereas isolate will not. For Deconstruct I'll do 0db tonal, -3/-6 noise, and opt to keep transient separate. Then leave sliders midway. Can work well for noise that often isolate and spectral denoise leave behind.

[Salantsoundstudios]

Thanks thomas. Would love to see a future video on removing wind noise if had some time. Thanks!

[ispossible]

Epic video please more of fixing on the go and saying loud why u choose that or another way

[rickdeaguiar-musicreflecti]

Beautiful tutorial. I will follow your channel. Thank you for the insight and taking the time on this :)

[Justin_Allen]

Great tutorial. I'll have a chance to put this into practice this next week for dialog editing.

[EdWeibe]

the noise level removel is incredible.

[roistolaJR]

Very informative and insightful as always, thank you!

[EsotericNY]

The lower frequency hum I'd surgically remove because it's so prominent. Highlight the quiet area a la 1:41, pull up the spectrogram and move your mouse over each frequency (look for the obvious humps), go back to De-hum, choose static like you had in 2:02, but drop the the harmonics to 1 (not 16) to give you the ability to surgically removed each hum frequency. For lower frequencies, widen Q, e.g., 200-500. Rinse/repeat for the other lower frequencies. For the remainder, e.g., above 500Hz, just use spectral denoise, settings C or D.

[mickioannis]

excellent tutorial. I'd like to learn this tool so keep em coming!

[pgdarmi]

Great instructional! But do you have a video with tips for getting the best “down & dirty “ results? My problem is dealing with tight deadlines & panicky clients so I seldom have the time to do such a beautifully detailed job like your example.

[stevegeorge]

Great presentation, thank you for sharing your experience.

[smoothbeats]

Thanks for the vid !! I was wondering how much time would it take you to do it like normaly, whitout having to explain while doing