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Roland SH-01A User Manual

Roland SH-01A
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VCO
The voltage control oscillator (VCO) is the source of the sound of the synthesizer. Here is where the section of the
keyboard the sound is set at (RANGE), the amount of modulation applied to the pitch of the oscillator (MOD) and the
source, and the shape and amount of pulse width modulation.
VCO CONTROLS
[MOD] SLIDER - Adjusts the depth to which the LFO modulates the VCO
[RANGE] KNOB - Specifies the octave of the oscillator
[PULSE WIDTH] SLIDER/SWITCH - MANUAL
The slider adjusts the pulse width value
- LFO / ENV
The slider adjusts the depth of modulation
NOTE - What is pulse width?
Pulse width is a value indicating the percentage occupied by the upper segment of a square wave. If the upper and
lower segments are unequal, the result is an asymmetrical square wave.
The best way to get to know pulse width and pulse width modulation is to set the PULSE WIDTH switch to MANUAL
and then move the slider up and down and listen to it. But consider that PWM only applies to the width of a square/
pulse wave. So if you are only using a saw waveform you won’t enjoy the effects of pulse width modulation at all.
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Roland SH-01A Specifications

General IconGeneral
Product typeDigital synthesizer
Product colorGray
Keyboard number of keys-
Maximum polyphony (notes)4
Display typeLED
Built-in displayYes
USB ports quantity1
Battery typeAA
Power source typeBattery
Weight and Dimensions IconWeight and Dimensions
Depth128 mm
Width300 mm
Height46 mm
Weight965 g

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