10.6

Table Of Contents
230Logic Pro Instruments
Modulate Filter Blend with an LFO in ES2
1. In Logic Pro, set up a modulation routing as follows:modulation target FltBlend, source
LFO2.
2. Adjust the settings of LFO 2.
Logic Pro ES2 Filter1 modes
Filter1 can operate in several modes, allowing specific frequency bands to be filtered (cut
away) or emphasized.
Click one of the following filter mode buttons for Filter1:
Lo (lowpass): Allow frequencies that fall below the cutoff frequency to pass. The slope
of Filter1 is fixed at 12dB/octave.
Hi (highpass): Allow frequencies above the cutoff frequency to pass. The slope of
Filter1 is fixed at 12dB/octave.
Peak: Filter1 works as a peak filter. This allows the level in a frequency band to be
increased. The center of the frequency band is determined by the Cutoff parameter.
The width of the band is controlled by the Resonance parameter.
BR (band reject): The frequency band directly surrounding the cutoff frequency is
rejected, but frequencies outside this band can pass. The Resonance parameter
controls the width of the rejected frequency band.
BP (bandpass): The frequency band directly surrounding the cutoff frequency is allowed
to pass. All other frequencies are cut. The Resonance parameter controls the width of
the frequency band. The bandpass filter is a two-pole filter with a slope of 6dB/octave
on each side of the center frequency.
Logic Pro ES2 Filter2 slopes
Most filters do not completely suppress the portion of the signal that falls outside the
frequency range defined by the Cutoff parameter. The slope, or curve, chosen for Filter2
expresses the amount of rejection below the cutoff frequency in decibels per octave.
Slope buttons: Choose a Filter2 slope:12dB, 18dB, and 24dB. The steeper the slope, the
more severe the effect on signal levels below the cutoff frequency.
Fat button: Adds 24dB per octave of rejection. Fat mode has a built-in compensation
circuit that retains the sound bottom end. By comparison, the standard 24dB setting tends
to make lower end sounds less rich.