User guide

AudioCore Version 8.40
AudioCore Version 8.40AudioCore Version 8.40
AudioCore Version 8.40 Page 49
Producing a flat-topped filter response.
To create a flat-topped EQ filter response such as that shown to the left, use two EQ bands, BOTH configured as low
shelves. For an overall BOOST, set the Lower frequency filter to BOOST the desired amount, and the Upper frequency
filter to CUT by the same amount.
The example has the filters set at:
PEQ1: Low Pass 99Hz @ -10dB, Q = 0.75
PEQ2: Low Pass 2kHz @ +10dB, Q = 0.75
Varying the ‘Q’ affects the slope of the response – higher values will cause overshoot. Note that as both ends of the flat-
topped filter shape are individually adjustable, the slopes and gains of each end allow assymetric filter shapes to be easily
realised.