Moog mf105b ユーザーズマニュアル

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and the transitions from filter to filter blurred, as the Attack and 
Decay become so long that the effect is crossfading from one filter 
to the next. 
   
5) Finally, turn the ENVELOPE control up to 8. The effect now 
sounds “backwards” as the attack time is now smooth but fast, and 
the decay is abrupt. 
     What happens as you change the ENVELOPE control is that the 
shape of the Envelopes controlling the gain of the filters morphs. 
Figure 11 shows the changes to the envelope times at different 
Figure 11 - Effect of the ENVELOPE control 
on the Bass MuRF’s attack and decay times 
settings of the Envelope 
control. The Envelope times 
also change as the Rate 
changes - faster Rate settings 
cause the envelope times to 
decrease and slower Rate 
settings slow the envelope 
times.  This makes the Bass MuRF capable of both rhythmic and 
smooth-changing, swirling effects. Spend some time to get to 
know how this control interacts with the different patterns and you 
will be rewarded with some very interesting sounds!    
THE Bass MuRF’S TAP/STEP INPUT 
     The Bass MuRF’s Animation can be synced to the tempo of the 
music using a Moog FS-1 footswitch or equivalent plugged into 
the TAP/STEP input. Tapping three times activates the tap tempo 
feature of the Bass MuRF. The MF-105B calculates the time in 
between taps and translates this into the rate for the pattern. It is 
important to make the time between the taps as much the same as 
possible to get the best results. Note that the Rate light becomes 
green when the rate is set by the TAP/STEP input, and returns to 
red if the RATE control is changed. The tempo of the Animation 
is twice the rate that is tapped on the footswitch. In other words, if 
you tap in quarter notes, the Animation will chug along in eighth 
notes. If you tap eighth notes, the Animation will proceed in 16th 
notes.