Roland SP-404MK Reference Manual page 173

Appendix MFX List
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Cassette Sim
This effect simulates the sound of a cassette tape playing.
Parameter Value
TONE 0‒100
HISS 0‒100
AGE 0‒60 (years)
DRIVE 0‒100
WOW FLUT 0‒100
CATCH 0‒100
Explanation
Sets the tone.
Adjusts the volume of the noise.
Sets how many years the cassette tape has deteriorated.
Adjusts the amount of distortion.
Sets the inconsistencies (wow/flutter) heard when the cassette tape plays back.
Sets how much the cassette tape has stretched out.