TV noise in the backgroung

Patryk Rebisz wrote on 11/15/2005, 3:44 PM

i have a sound clip that was recorded in a room with a TV on mute, so even though the room was "quiet" it has distinguished TV noise in the back -- you know that high pitch noise. Is there a way to get rid of it? Noise reduction maybe?

Comments

Jay Gladwell wrote on 11/15/2005, 3:50 PM

Noise Reduction 2.0 should work for you. Recently, I was forced to shoot and record directly under an industrial AC duct. What a background noise that created! Noise Reduction 2.0 dealt with the issue very well. One of the best investments I've ever made!

Patryk Rebisz wrote on 11/15/2005, 3:57 PM

tried to work with the demo of Noise Reduction and found that although it does reduce the noise it doesn't want to touch that high pitched noise.

Coursedesign wrote on 11/15/2005, 4:35 PM

NR should be able to eliminate that noise completely.

It is important to choose your sample carefully, and sometimes to work in multiple steps, search for previous posts here on this.

johnmeyer wrote on 11/15/2005, 5:36 PM

Noise reduction was designed for exactly this sort of noise. As others have already said, properly applied, it should completely eliminate the noise. You can also use the spectrum analyzer to find the frequency (if it is based on the fly-back transformer, it will be around 15 kHz, or a subharmonic), and then use a notch filter. You've got to find a spot in your audio with no other sound and then use that as a sample. You only need 1/4 second or thereabouts. Create your noiseprint from that sample, same the setting, and then apply.