Wisdom Audio DCAB-1 - Manual (Page 23)

23
Learning Your Way Around
The terminal window may seem intimidating at first. Once you learn your way
around in it, you will find that it displays a tremendous amount of information in
an extremely compact, accessible format. Please take a few moments to famil-
iarize yourself with the window and its information before your begin calibra-
tion.
There are four logical areas within this window: Filter Controls, Calibration
Data, RTA Controls, and RTA Display.
Filter Controls At the top-left of the window you find the parameters available to you to correct
room problems.
In general, the columns come in pairs; the Left column for the Left speaker, and
the Right column for the Right speaker. For the notch and boost filters, the pairs
of columns are for the center frequency of the filter, the amplitude of the adjust-
ment, and the Q (or width) of the filter.
xover These controls set the crossover frequency for the Left and the Right speaker.
These will usually be the same for both speakers, but are set separately (as are
all parameters), to preserve flexibility.
damping “Damping” refers to the shape of the curve where the crossover transitions from
flat to its 24 dB/octave slope. A value of 50% will cause the two halves of the
crossover to sum to a flat curve. A value higher than 50% will introduce a small
bump in the summed curve at the crossover region, while a lower value will
result is a small dip in the summed curve at the crossover region.
The subjective effect of the damping control allows you to make a seamless
blend between the low and high frequency portions of the system. Start with a
value of 50% and vary it only at the very end of the tuning process, if necessary.
hi level This is the level (volume) control for the high pass (planar) section of the system.
It sets the overall level of the speaker above the crossover frequency.