miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
43
8.11.3
The “no gain” approach
An alternative approach to setting input gain is ensuring that your EQ curve is “mostly below zero.”
For example, in the common case where a low-shelf filter is used as a bass boost, the filter can be reversed:
•
Change it to a high-shelf filter.
•
Set the gain negative instead of positive.
On page 29 the filter shown is a low shelf with gain of 4.0 dB. Here is the same filter reversed as described
above:
Note that the whole graph is now shifted down.
A second approach is to use advanced mode of the parametric EQ. Set an unused filter to Advanced mode. To
reduce the gain by 6 dB, set coefficient b0 to 0.5, then press the Process button.
For each halving of
b0
, the gain of the whole PEQ block is reduced by 6 dB. So use the value 0.25 for a 12 dB
reduction in level.
