Creative 1212M, 1820M owner manual Freq Shifter

Freq Shifter

This unusual effect is sometimes called “spectrum shifting” or “single sideband modulation”. Frequency shifting shifts every frequency in the signal by a fixed number of Hz which causes the harmonics to lose their normal relationship. The more common pitch shifter, in contrast, preserves the harmonic relationships of the signal and so is better suited to creating “musical” harmonies.

This isn’t to say that the frequency shifter can’t be used musically. Small intervals of frequency shifting (1 Hz and below) can produce a wonderful, lush chorusing or phasing effect. For bizarre frequency shifting effects, simply crank up the frequency knob. Frequencies can be shifted up or down by any specified amount from .1 Hz to 24 kHz. You can also shift pitch up on one side and down on the other if you wish.

Comparison between Pitch and Frequency Shifting

Harmonic	Original	Pitch Shifted	Frequency Shifted
	(Hz)	(100 Hz)	(100 Hz)
1	200	300	300
2	400	600	500
3	600	900	700
4	800	1200	900
5	1000	1500	1100
6	1200	1800	1300
7	1400	2100	1500
8	1600	2400	1700

Parameter	Description
Frequency	Sets the number of Hz that will be added or subtracted with every
	harmonic in the signal. Range: .01Hz to 24kHz
Left Direction	Sets pitch shift up or down for the left channel.
Right Direction	Sets pitch shift up or down for the right channel.

5 - Effects Core Effects Descriptions

fYou can also type in exact frequencies to a resolution of 1/10 Hz.

E-MU Digital Audio System 69