Comments

Kennymusicman wrote on 5/16/2008, 2:48 PM
Probably.

Air conditioning is 'usually' fairly simple to get rid of, by using noise reduction in soundforge. (IIRC SF even came with an example of removing air-conditioning noise as a tutorial example ages ago)
iZotopes' RX would also do the trick.
Geoff_Wood wrote on 5/16/2008, 4:22 PM
Maybe simply noise gate to reduce it in gaps....

geoff
richard-courtney wrote on 5/16/2008, 8:13 PM
"Is there any way to get rid of that noise?"

My first thought is "call hotel engineering....".

Is it repetitive enough to use a small section of the chirp only and
use the old inverse-phase add method? (like what you do to create karaoke
discs)
Mark Brown wrote on 5/20/2008, 12:49 PM
How do I do this inverse-phase add method? Sounds interesting.

What I need is for something to tell me what frequency that chirp is and then kill it.

I'll check out these other things too. Betting there's software that does this.

Thanks.
Kennymusicman wrote on 5/20/2008, 2:40 PM
As I mentioned. Sony's noise reduction will do it (or should do).. iZotopes Rx will do it (or should do). You can try the ol' phase trick too if you like,
Basically - stereo waveform. Take one channel, invert it, then combine the 2 channels. Results = centre (in phase) channel cancellation. If your audio source is mono, then this option will not work. (that's for vocals).

similar principle here. Take a snippet of "pure noise", invert, and then use that to cancel out the noise from the rest of the audio. But I really would investigate options a) or b)
rraud wrote on 5/20/2008, 4:56 PM
Please define "chirping". (Like a bird? )
If this is a constant "din" type noise, noise reduction plugs can attenuate it. Otherwise you will need a spectral type of NR process. (and a lot of time)