User guide

xx = First 7 bits of X coordinate

xx = Second 7 bits of X coordinate

xx = Last 7 bits of X coordinate

yy = First 7 bits of Y coordinate

yy = Second 7 bits of Y coordinate

yy = Last 7 bits of Y coordinate

n1 = Single-byte pan representation

n2 = Single-byte divergence representation

n3 = Single-byte level representation

XX = Calculated checksum value

F7 = End message

The X coordinate is represented as a little endian 21-bit value, calculated as ix = (x + 1000) * 1000

The Y coordinate is represented as a little endian 21-bit value, calculated as iy = (y + 1000) * 1000

- Pan: 1 byte (0 ... 127 -> 0.0 ... 1.0)

- Divergence: 1 byte (0 ... 127 -> 0.0 ... 1.0)

- Level: 1 byte (0 ... 127 -> 0.0 ... 1.0)

SpaceMap Example

Set the SpaceMap position for bus 3 to position (-100.5, -100.5), with pan = 0, divergence = 50%, level = full.

ix = (-100.5 + 1000) * 1000 = 899,500

iy = (-100.5 + 1000) * 1000 = 899,500

The little-endian 21 bit representation of `899,500 = 44 + (115*128) + (54*16,384)`.

Therefore: `xx xx xx` = 2C 73 36

And the full message is:

Note

The range of control supported is -1000 to +1000 in both x and y axis.

SpaceMap® Control