How to remove an Audio Tone?

[A. Bastaki]

Is there a way i could heal an audio tone... and by tone i mean.. a tone that sounds like a phone tone... the same kinda tone you get when you add the bar and tone video/audio genertaor... something that goes like...

tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu...

I shot on red.. apparently my channel 1 is bust and adds a tone to my recording. Actually my entire freggin film.

and i just sent the whole project to soundtrack pro.. and im removing the tone by going through each and every single cut... aaand opening it... get into the frequency spectrum view and deleting all the horizontal lines. :waaa: getting the noise print and reducing noise does not do it right... it compresses too much.

 

[number6]

Is there a way i could heal an audio tone... and by tone i mean.. a tone that sounds like a phone tone... the same kinda tone you get when you add the bar and tone video/audio genertaor... something that goes like...

tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu...

I shot on red.. apparently my channel 1 is bust and adds a tone to my recording. Actually my entire freggin film.

and i just sent the whole project to soundtrack pro.. and im removing the tone by going through each and every single cut... aaand opening it... get into the frequency spectrum view and deleting all the horizontal lines. :waaa: getting the noise print and reducing noise does not do it right... it compresses too much.

Akube, do you have Adobe Audition? If so then you are probably familiar with the noise reduction feature that lets you capture a profile of the noise you want to eliminate, then tell the program to eliminate it. Might make your audio salvageable, at the very least.

edit: just saw where you referred to getting a noise print... probably the same thing I'm talking about, so nevermind.

 

[A. Bastaki]

Akube, do you have Adobe Audition? If so then you are probably familiar with the noise reduction feature that lets you capture a profile of the noise you want to eliminate, then tell the program to eliminate it. Might make your audio salvageable, at the very least.

edit: just saw where you referred to getting a noise print... probably the same thing I'm talking about, so nevermind.

tried audition.. same thing.

though i wish could heal an entire segment end to end rather than a 1sec peice

 

[BASSAM MSSALATIE]

If your audio files were, so much damged , nothing , no flters will fix it
I hope you can do it .

 

[donatello b]

can you post a 10-15 seconds of audio .. try to have at least 2 sec with no talking over the tone ( so we can get a clean sample of just the tone )

 

[Ed Watkins]

Akube,

I'm guessing the tone you are hearing is the one that I can isolate on my RED footage (the tone gets worse when the board is broken, or the gain turned up, it is present when using mic level in).

1) Take the audio file into a sound editor like Soundtrack pro.
2) Add a graphic equalizer to it (like "Channel EQ").
3) To remove the tone isolate the following frequencies as tightly as possible, and drop their gain way down:
550 hz
1100 hz
2200 hz

As in the picture attached.

If that doesn't do it "scan" backwards and forwards across the frequencies using the peak until you isolate the hum's frequencies.

Save it as a preset and then apply "Channel EQ" to your multi-track project tracks.
That way you can remove the tone on, say, all the dialogue (if it is on one track) in one go.

 

[jimhare]

Or try a notch filter. I completely got rid of a 1k test tone in a studio interview once.

 

[Andrew M.]

Akube, if you recorded only one channel then do what Ed is suggesting.
If you were recording two channels, then subtract ch 1 from ch2 by mixing it in to one channel and inverting ch2.
This will give you clean separated tone only.
Mix it inverted in to ch1 again and all tones and also all nise will be clear.
I use it to clean any unwanted preamp noise or any noise near the mike that happen to be. (fridge, fan, etc.)

 

[A. Bastaki]

I tried the Ed way, and I tried using the parametric EQ too... they both yeilded the same results... the tone wouldn't go... i tried nailing it down to the tens of hz.. but no proper results.. i even tried widening the curve...

In the end i just went back to soundbooth as it did a way better job taking the tone away with the capture noise signature it has. I just wish this thing had a mixer and a multi-track editor... its such a powerfull tool... its like photoshop for audio. It has amazing audio finesse tools.

 

[Ed Watkins]

Looking at your soundbooth spectrum the tones are clearly sinusoidal (isolated bands at even intervals). However based on the pattern it created I think it may be stronger and have a closer frequency intervals than the one I experienced.

You should still be able to isolate it, but it may require more than three specific EQ peak drops. If you want, send me a sample and I'll see if I can create a quick EQ preset for you.

 

[A. Bastaki]

Looking at your soundbooth spectrum the tones are clearly sinusoidal (isolated bands at even intervals). However based on the pattern it created I think it may be stronger and have a closer frequency intervals than the one I experienced.

You should still be able to isolate it, but it may require more than three specific EQ peak drops. If you want, send me a sample and I'll see if I can create a quick EQ preset for you.

Thanks Ed, I'm good now.

 

[Michael Thornton]

Thanks Ed, I'm good now.

What fixed it?

Was it Ed?

Please give us some details for future references.

Thnx

Tek