
YMU757
#
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16-
The sustain levelrefersto the levelatwhich shifting from the decay rate to the release rate takes place in the case of
the dam ped sound,and the volum e levelofthe sound being sustained in the case ofthe sustained sound.
SL ->
SL3
SL2
SL1
SL0
Weighted bit (dB)
-24
-12
-6
-3
AR[3:0]
DR[3:0]
RR[3:0]
Attack rate
From -48 to 0dB (ms)
Decay rate,
release rate
from 0 to -48dB (ms)
Fh
0
2.23
Eh
4.65
8.94
Dh
9.30
17.88
Ch
18.59
35.76
Bh
37.19
71.52
Ah
74.38
143.04
9h
148.76
286.07
8h
297.51
572.14
7h
595.03
1144.25
6h
1190.05
2288.56
5h
2380.10
4577.12
4h
4760.21
9154.25
3h
9520.42
18308.50
2h
19040.84
36617.00
1h
38081.68
73234.00
0h
Inhibit
Infinity
TL5 -TL0 :Totallevelsetting
Thisfunction isused to setthe envelope level.
TL
TL5
TL4
TL3
TL2
TL1
TL0
Weighted bit (dB)
-24
-12
-6
-3
-1.5
-0.75
SU S :Sustain On/O FF setting
"0":O FF
"1":ON
The release rate changesto "6"(2.29s)when the sound length com esto the end.
WA V :Waveform selection
The m odulatorand carriercan generate the SIN wave butwhen this bitsetting is made,itis possible to generate a
half-wave rectified waveform ofthe SIN wave,the timbresin widerrange can be created.
"0":SIN wave
"1":Half-wave rectified waveform ofthe SIN wave.
FL2 -FL0 :Feed-back setting
Thisfunction iseffective forthe operatoron the carrierside only.Itisused to setthe feedback m odulation rate.
Be sure to set"0"forthe operatoron the m odulatorside.Thisiseffective when generating the strings.
WA V =0
WA V =1