DigiTech Midi Implementation Manual page 146

Algorithm 4
CMP+DST+DTB+PEQ+GTRVB+VOI
2 Compressor 0-1
3 Compression Amnt 0-31
4 Compression Lvl 0-6
5 Distortion 0-1
6 Distortion Type 0-4
7 Distortion Balls 0-31
8 Distortion Level 0-7
9 Digitube Gain 0-21
10 Digitube Level 0-10
11 Noise Gate 0-1
12 NG Threshold 0-1
13 NG Release 0-10
14 Band 1 Frequency 0-23
15 Band 1 Level 0-12
16 Band 2 Frequency 0-23
17 Band 2 Level 0-12
18 Digital Reverb 0-1
19 Gate Decay Time 0-11
20 Gate Envelope 0-2
21 Mix:Dry Level R 0-10
22 Mix:Dry Level L 0-10
23 Mix: Gate Levl R 0-10
24 Mix: Gate Levl L 0-10
25 Stereo Imaging 0-2
26 Amp Voicing 0-4
27-36 Not used, set to 0