Apple Logic Express 9 - Manual (Page 738)

• Mul: The parameter value is multiplied by the set value (accurate to four decimal places).
The effect, and use, of this operation is best illustrated by the Half Speed preset.
• Div: The parameter value is divided by the set value (accurate to four decimal places).
The effect, and use, of this operation is best illustrated by the Double Speed preset.
• Scale: The parameter value is multiplied by the top value, and the bottom value is then
added. This is a combination of Mul and Add. If you enter a negative number here,
values can be subtracted from—rather than added to—the value resulting from the
multiplication.
• Range: Parameter values outside the set value range are replaced by the values of the
(range) limits (combination of Min and Max).
• Random: Random values are generated within the set limits.
• +-Rand.: A random value between zero and the set value (positive or negative) is added.
• Reverse: The parameter value is reversed within its value range (no value can be set
here).
• Quantize: The parameter value is quantized to a multiple of the set value.
• Qua & Min: Like Quantize, but the quantization does not fall below the set value (a
combination of the Quantize and Min functions, with the same set value).
• Expon.: The parameter value is scaled exponentially. The extreme values (0 and 127)
remain unaltered. The set value determines the shape of the curve. Positive values
result in the exponential scaling of data (increasing input values remain lower for longer,
and then rise quickly), and negative values result in the logarithmic scaling of data
(decreasing input values remain higher for longer, and then drop off more quickly).
• Crescendo: This only works if the Inside Position selection condition is selected
(crescendos need start and end points). Crescendo creates a smooth alteration of the
current parameters, between the set value boundaries.
• Rel.Cres: This only works if the Inside Position selection condition is selected. The effect
is similar to that achieved by Crescendo, but the previous values of the parameters
being altered are taken into account when the crescendo is created, preserving the
relative feel of the original.
• Use Map: The set map will be used when this operation is selected (see Using the Map ).
To set the values for an operation
µ
Use the mouse as a slider, or type a value directly into the field.
738 Chapter 26 Editing MIDI Events in the Transform Window