Alesis ModFX Reference Manual page 37

Pattern
This mode randomly generates a 16-step sequence to modulate the
filter and repeats it over and over. Pattern mode makes the filter
jump quickly from step to step, sometimes with a glide between
steps. It sounds somewhat like "sample and hold" modulation,
except that the pattern will step through the same 16 steps over
and over, instead of being random.
• Press the [RESET MOD] button to generate a new 16-step
pattern.
• Try using the [RATE] knob, or the TEMPO SYNC/TAP
TEMPO features, to make the steps of the pattern play in
sync with your music. Keep in mind that the pattern has 16
steps per 4 beats, so adjust the RATE knob accordingly.
Using the Philtre
RATE in Pattern
mode
You c an th in k o f Pa tte rn
m od e as be in g 4 x th e r ate o f
the o th e r mo d ulatio n s ou r ce s.
I n Te mp o S yn c m od e, tu rn th e
[ RATE] k no b full clo ck wis e
( 1/4 sp e ed ) to ge t o ne s tep
p er b ea t, th e s am e a s
Trian gle a t a 1 2 o' c lo ck
s etting of [ RATE] .
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