LiveATC Discussion Forums

Air Traffic Monitoring => Listener Forum => Topic started by: dave on August 24, 2005, 02:48:11 PM

Title: Hum reduction for listeners
Post by: dave on August 24, 2005, 02:48:11 PM

If you use Winamp (highly recommended), you can reduce the AC (60Hz) hum on some of the feeds by using Winamp's built-in equalizer and rolling off the 60Hz response, as follows:

(http://www.liveatc.net/images/winamp-hum-reduction.jpg)

I am sure other sound players have this capability, but I don't believe any of them make it as easy to get at as Winamp does.

The reason I mention this is that some feeder sites have a difficult time achieving the isolation and/or grounding necessary to reduce the transmitted hum.  This technique should be very effective for most listeners.

-dave

Title: Hum reduction for listeners
Post by: mechanicalamit on August 25, 2005, 10:34:51 AM

I also see you have got the preamp all the way down. Any specific reason for that?

Title: Hum reduction for listeners
Post by: dave on August 25, 2005, 10:41:19 AM

No...I was testing something else and forgot about that when I was taking the screenshot.  Good catch!  I'll post a new screen shot.

-dave