We'd hoped that the constant background noise might have been significantly cancelled out. My son's, admittedly very expensive, Bose aviation headset 'phones mainly achieve this. With the Creative 'phones it's possible to discern a slight background noise reduction; just.
Back in the sixties we did this on our GCA radar, using a delay line, plus inversion, to achieve the same effect, to produce an MTI area. I have to say that waiting for the first live aircraft echo to enter this black hole, just after you'd set it up, was a sure fire cure for anal retention!
Gerry Winskill bones wrote:
When you say they were not very good what do you mean by that? In other words what were you expecting to happen that didn't? bones -----Original Message----- From: jhb-bounce@xxxxxxxxxxxxx [mailto:jhb-bounce@xxxxxxxxxxxxx] On Behalf Of Gerry Winskill Sent: 30 September 2007 11:54 To: jhb@xxxxxxxxxxxxx Subject: [jhb] Noise Cancellation My daughter has just bought a budget priced pair of noise cancelling Creative headphones, of the type sold for use in flight. When tried in here, with an FSX flight in progress, they weren't spectacularly successful. It struck me that the same process ought to be possible, just using a headset coupled to a mike equipped laptop; provided it was running suitable software. Does anyone know whether noise cancelling software is available? Gerry Winskill
