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Old 22nd June 2009
Gear Guru
tINY's Avatar

My final project in college was similar to this trap. I added the complexity of sending a signal to the summing point, rather than just DC.

The thing is: You can get a near perfect null at the point of the mic. If placed properly, this will absolutely work miracles on standing waves that ring (Modal ringing). It also counteracts traffic noise.

What it won't do is fix boundary issues where path length differences cause problems.