参数资料
型号: YMU757
元件分类: 音频合成
英文描述: TONE/MUSIC SYNTHESIZER, PDSO20
封装: TSSOP-20
文件页数: 7/42页
文件大小: 701K
代理商: YMU757
YMU757
#
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15-
VIB :Vibrato
Thisfunction isused forsetting the vibrato function on oroff.Use "0"to setitoffand "1"to setiton.
The vibrato frequency is6.4H z and the m odulation rate is±13.47cent.
EG T :Envelope waveform type
Thisfunction isused to selectthe type ofthe envelope waveform.
Use "0"forthe dam ped sound and "1"forthe sustained sound.
Show n below are the waveformsforthe dam ped sound and sustained sound.
AR3 -AR0 :Attack rate setting
"A ttack rate"refersto the time from startofthe sound generation (-48dB)untilitreachesthe maximum volum e (0dB).
The table on page 15 show sthe settingsby the time required to reach 0dB from –48dB.
DR3 -DR0 :D ecay rate setting
The decay rate refers to the dam ping time required to reach the sustain level(SL)from the maximum volum e level
(0dB).The table below show sthe settingsby the time required to reach -48dB from 0dB.
RR3 -RR0 :Release rate setting
The release rate isdefined differently forthe dam ped sound and the sustained sound.
-In the case ofthe dam ped sound,itm eans the dam ping time from the sustain levelto the end ofthe sound length.
The sound isdam ped in 286m s(time to reach -48dB from 0dB)afterthe end ofthe sound length isreached.
-In the case ofthe sustained sound,itm eansthe dam ping time from the end ofthe sound length.
SL3 -SL0 :Sustain levelsetting
$5#
'5#
55#
6/#
3G%#
07;G%#
W hen SU S=O N
EGT=0 Damped sound
Sound length
$5#
'5#
55#
6/#
3G%#
07;G%#
W hen SU S=O N
EGT=1 Sustained sound
Sound length
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