This is done by zeroing the first millisecond of the input impulse response (after the DC offset has been removed ).
Lessen that feeling of frustration by zeroing in on the activity you'll be performing while wearing the lenses.
For instance, the Tennessee Spirit Mike is said to muffle human conversation and ambient noises while zeroing in on spirit voices.
Or you can choose to attack a small account with the goal of zeroing it out for the quick gratification it provides.
"Seems both girls are missing," Gabriel said, zeroing in on Darkyn.