10.6

Table Of Contents
612Logic Pro Instruments
You have modulated Osc2 Pitch with a rapidly vibrating LFO with a medium Ramp
Decay value. This eliminates the sine wave—which is not especially desirable for a snare
sound, in contrast to the bass drum.
4. Set LFO1 to a high Rate. Choose a value of 20 for Cycles and −20 for Ramp. Set the
LFO Waveform parameter to a value of about 0.58, which is a square wave.
5. Use Env1 to control the volume of oscillator2 by setting Vol to the lowest possible
value (−60dB), choosing Env1 from the mod pop-up menu, and adjusting the
modulation intensity to a point just below its maximum value.
The figure shows the settings of oscillator2 and Env1.
6. Experiment with different Slope and Asym values to impart a more or less electronic
character to the sound.
7. Turn on the noise generator and control its volume with the same quick envelope used
in Osc2 Volume.
8. Use the filter parameters of the noise generator to roughen up, refine, or add bright
frequencies to the noise component of the snare drum sound. Select an LP filter type,
and try a filter frequency between 0.60 and 0.90. Modulate it with LFO1, which you’re
already using to control the pitch of oscillator2.
Note: The snare drum sound is listed as “snare 1” in the Tutorial Kit, at a pitch of E1.
Refine the snare drum sound using FMsynthesis
1. In Logic Pro, turn on oscillator1 in FMmode. Use Env1 to control the volume of Osc1
as well.
2. Choose a pitch for oscillator1 that’s about an octave lower than oscillator2.
Consciously avoid even intervals between the oscillators and detune them slightly from
each other. For example, try a pitch setting of F#2 in Osc2 and E1 in Osc1, then fine-
tune Osc1 a few cents higher by holding down Shift while adjusting the Osc1 Pitch
slider.
3. Experiment with FMAmount, and add more tone (low FMAmount) or noise (more
FMAmount) as desired. Also try modulating the FMAmount with a fast LFO.
Higher FMAmount values lead to considerably more overtones and a very electronic
sound character. If you want to make the sound more acoustic, feed oscillator1 (and
possibly oscillator2 as well) into the main filter. Use these settings to start:LP24 mode
and a Cutoff value of about 0.60.
Note: An exemplary snare drum sound that uses FM can be found in the Tutorial Kit at a
pitch of F1. It is listed as “snare 2.