SEGA SATURN DEVELOPER'S MANUAL

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PLFOS [2: 0] (R / W); Pitch-LFO Sensitivity

Specify the degree of frequency modulation by LFO. This frequency modulation can express the vibrato effect (a phenomenon caused by periodically changing the oscillation frequency of the sound) (Table 4.24).

Table 4.24 Amplitude modulation and frequency modulation levels

ALFOS Mixing to EG PLFOS Pitch effects
0 No effect 0 No effect
1 0.4 dB displacement 1 ± 7 cent displacement
2 0.8dB displacement 2 ± 13.5 cent displacement
3 1.5 dB displacement 3 ± 27 cent displacement
4 3dB displacement 4 ± 55 cent displacement
5 6dB displacement 5 ± 112 cent displacement
6 12dB displacement 6 ± 230 cent displacement
7 24dB displacement 7 ± 494 cent displacement

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ALFOS	Mixing to EG	PLFOS	Pitch effects
0	No effect	0	No effect
1	0.4 dB displacement	1	± 7 cent displacement
2	0.8dB displacement	2	± 13.5 cent displacement
3	1.5 dB displacement	3	± 27 cent displacement
4	3dB displacement	4	± 55 cent displacement
5	6dB displacement	5	± 112 cent displacement
6	12dB displacement	6	± 230 cent displacement
7	24dB displacement	7	± 494 cent displacement