Yamaha Sound Edge Manual page 31

Sound Edge Application Software
Type1:
The Audio/MIDI input goes through Voice Cancel and the MIC IN input goes through the
Key Control pitch shifter, then passes through the Surround delay. Since Key Control is
connected to MIC IN, you can use it to produce special sound effects like those in
VoiceMorph, as well as chorus effects.
Type2:
27
The Audio/MIDI input goes through Voice Cancel then through two independent Surround
delays. Since Type2 does not include Key Control, you can apply more precise Surround
effects than with Type0 and Type1.
Type3:
All available memory in the DSP is assigned to the two Surround delay effects in order to
produce higher quality surround effects or deeper echoes than possible by Type2.