Symetrix 601 - Data Structure Per Program; Table 10. Global

C-8
Rev 2.2, 10/31/94
C.1.6 Data Structure Per Program
All programs use the following data structure. Each program parameter has a specified offset
within the Edit Buffer. By reading or writing these parameters, you can query or set particular
program parameters. By dumping the entire range (0-99d), you can look at the status of the
entire edit buffer. By reloading the same range, you can superimpose your own values onto the
same parameters. (You can also modifiy any value individually via MIDI.) You'll need an
external MIDI program editor to perform this task. For clarity, each function is presented in its
own table, however the offsets shown refer to a contiguous block of memory in the unit.
Table 10. Global
Offset Description Range (dec) Reference
0 Dynamics sidechain filter
mode
0: highpass shelving
127: lowpass
See also offset 65
1
De-esser sidechain filter
frequency
0: default, 5 kHz
1:127
See Frequency Table
2 Input Gain See Attn18 Table
Table 11. Filter 1
Offset (dec) Description Range (dec) Reference
3 F1 Mode 64: shelving
127: bp
4 F1 Freq See Frequency Table
5 F1 Q See BW Table
6 F1 Level 81: out See Attn82 Table
7 F1 Freq/BW Rate of Change See Tc Table
8 F1 Level Rate of Change See Tc Table
Table 12. Filter 2
Offset Description Range (dec) Reference
dec hex dec
9 9 F2 Mode (NOP, always BP)
10 A F2 Freq See Frequency Table
11 B F2 BW See BW Table
12 C F2 Level 81: out See Attn82 Table
13 D F2 Freq/BW Rate of Change See Tc Table
14 E F2 Level Rate of Change See Tc Table
Table 13. Filter 3
Offset Description Range Reference
dec hex dec
15 F F3 Mode 64: shelving
127: bp
16 10 F3 Freq See Frequency Table
17 11 F3 BW See BW Table
18 12 F3 Level 81: out See Attn82 Table
19 13 F3 Freq/BW Rate of Change See Tc Table
20 14 F3 Level Rate of Change See Tc Table