Файл: Morpheus_Operation_Manual.pdf

MIDI SPECIFICATION

• Function Generator Conditions

The function generator condition values are shared between preset funcgens and hyper funcgens, though some values are excluded in the hyper func gen. The chart shows the numbers and the availability.

MIDI SPECIFICATION

• Function Generator Levels

The funcgen level parm value is comprised of two bitfields.

Funcgen Level = (levelType << 8) + levelValue

bits 8-13 = level type, 0-3

bits 0-7 = level value, +-127

The level types are defined as follows:

0absolute level

1delta level

2random absolute level

3random delta level

• Filter Types

Use the FILTER LIST command to get a list of the currently available filter names, ids and transform number. the filter type number sent via sysex are unique ids. (they are not the index into the screens) The transform number is used to determine the active parms for that filter. The number of parms active for any filter is determined by the number of frames in the filter.

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MIDI SPECIFICATION

Transform Filter Type

02 frame filter

14 frame “square” filter

26 frame “phantom cube” filter

38 frame “cube” filter

4unused

54 frame “square” filter, gain reduced

• Effect Types

Use the EFFECT LIST command to get a list of the currently available EFFECTS and their IDs. The effect type number sent via SysEx are unique IDs. (they are not the index into the screens). Note that the A and B effect IDs do not overlap. e.g. the A effect StereoFlange does not have the same ID as the B effect StereoFlange.

• Parameter Numbers

The following parameter numbers are in decimal.

MIDI SPECIFICATION

• Instrument Numbers

Use the INSTRUMENT LIST commands to get a list of the IDs and names as they appear in the box. Instrument numbers are comprised of two bitfields. (romset<<8) + index.

bits 8-13 = romset number.

bits 0-7 is an index into the romset.

The Morpheus romset is 7. (Therefore instrument numbers start at

1792).

• Program Numbers

The mapping of program numbers for preset changes and midimap program number editing is as follows:

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SYSEX TUTORIAL

• 14-bit Signed 2's Complement Numbers

If the data value is negative, you must first take the 2's complement of the number: In the case of a 14-bit number this is equivalent to adding 16384 to the original negative value.

To fit the 7-bit MIDI protocol, numbers must be “nibble-ized”.

To get the 14-bit nibble-ized value (of a positive value or a 2's complemented negative value):

msb = value DIV 128 (divide and ignore the remainder)

lsb = value MOD 128 (divide and use only the remainder)

To go the other way (convert 14 bit signed 2's complement to a signed real number)

raw Value = (msb*128) + lsb (gives you the unsigned raw value)

Example: To find the “nibble-ized” Hex value of -127:

1)-127 + 16384 = 16257

2)16257 ¸ 128 = 127 r-1

3)127 in Hex = 7F = msb

4)1 in Hex = 01 = lsb

5)Parameter value would be transmitted as 01 7F

Example: To find the “nibble-ized” Hex value of parameter number 257:

1)257 ¸ 128 = 2 r-1

2)2 in Hex = 02 = msb

3)1 in Hex = 01 = lsb

4)Parameter number would be transmitted as 01 02