10.6

Table Of Contents
575Logic Pro Instruments
Ring modulator parameters
Ring Modulator On/Off button: Turn the ring modulator on or off.
Note: If you want to hear the ring modulator signal in isolation (to better judge your
settings), temporarily set the volume of both oscillators to a value of 0.
Level slider: Set the output volume of the ring modulator.
Mod and via pop-up menus: Choose the modulation source (and optional via source)
for the Level parameter. When either source is active, small sliders (handles) appear on
either side of the Level slider. See Logic Pro Ultrabeat modulation overview.
Signal Flow button: Determine the routing of the ring modulator signal to the filter
(red) or to the EQsection (gray). The direction of the arrow on the Signal Flow button
illustrates the routing.
Note: The Signal Flow button determines how the ring modulator output signal is
routed. It doesn’t turn the ring modulator on or off.
Logic Pro Ultrabeat noise generator
The Ultrabeat noise generator lets you create a wide range of percussive sounds and
sound elements. The noise generator has its own filter, which functions independently of
the main Ultrabeat filter, although the noise generator filter can also be used on the overall
sound.
Technically, a noise signal contains all tonal frequencies, at a roughly equal volume level.
As all frequencies in the spectrum are audible, it makes it difficult for human beings to
hear any tonality (pitch) in a noise signal. Despite this, or as a direct result of it, noise is an
indispensable ingredient when creating drum sounds.
Noise generator parameters
On/Off button: Turn the noise generator on or off. When programming a drum sound,
you can turn the individual sound sources on or off. You can also listen to, or remove,
individual components of the sound separately in this way.
Filter Type buttons: Switch the noise generator integrated filter between lowpass,
highpass, and bandpass filter types.
LP (lowpass): This filter type allows frequencies that fall below the cutoff frequency
to pass. The filter slope is fixed at 12dB/octave.