mi niDSP Ltd, Hong Kong /
/ Features and speci fi cations subject to change wi thout pri or noti ce
37
In detail, the parameters are as follows:
EQ band selection
Click on the radio buttons EQ1, EQ2, etc. to display the parameters for that filter.
Basic/Advanced
By default, each filter is in basic mode, and shows the controls described below. Advanced mode
enables custom biquad programming for almost infinite flexibility in filter implementation. This
is described in
.
Filter type
PEAK
Create a dip or a peak in the frequency response.
LOW_SHELF
Reduce or increase part of the frequency spectrum below a given frequency.
HIGH_SHELF
Reduce or increase part of the frequency spectrum above a given frequency.
SUB_EQ
Create a dip or a peak in the frequency response at low frequencies (10 to 50
Hz). This filter type is similar to PEAK but gives more accurate results for low
frequencies. Note that activating any SUB_EQ filter reduces the number of
available filters in that block by one.
Frequency
For the PEAK filter type, this is the center frequency of the peak or dip. For the HIGH_SHELF and
LOW_SHELF filter types, this is the frequency at which the gain is half of the set value.
Gain
For the PEAK filter type, this is the gain in dB at the center frequency. For the HIGH_SHELF and
LOW_SHELF filter types, this is the gain in dB reached at high or low frequencies respectively. A
filter has no effect if its gain is set to 0. Gain can be adjusted in increments of 0.1 dB up to +/ - 16
dB.
Q
Q controls the “sharpness” of the filter. For the PEAK filter type, lower Q gives a shallower peak
or dip, while higher Q gives a narrower peak or dip. For the HIGH_SHELF and LOW_SHELF filter
types, Q controls how quickly the filter transitions from no gain to maximum gain.
Bypass
Clicking on the Bypass button disables that filter. (All other filters are still operational unless
individually bypassed.)
Import REW
This button selects a file exported from Room EQ Wizard’s automatic equalization function. For
more information, see the section
and the app note
