Program dumps | System overview | Bytes | Byte map
77-byte system dump. Known/frame/checksum 77 · secondary 0 · unknown 0.
Full regions table: byte-map.md.
Codegen layout: m7_system_dump.ksy (Kaitai Struct) · m7_system_dump.spec.json.
Reserved/meta roles (fixed prefix, padding) come from a corpus scan of all system .syx dumps — medium confidence.
| Offsets | Len | Status | Field |
|---|---|---|---|
| 0 | 1 | frame | SysEx start (F0) |
| 1-3 | 3 | frame | manufacturer ID |
| 4-7 | 4 | frame | system-dump header |
| 8-9 | 2 | known | wet gain (nibble_hilo) |
| 10-11 | 2 | known | dry gain (nibble_hilo) |
| 12 | 1 | known | fixed prefix |
| 13 | 1 | known | audio routing (raw_u8) |
| 14 | 1 | known | fixed prefix |
| 15 | 1 | known | audio format (raw_u8) |
| 16 | 1 | known | fixed prefix |
| 17 | 1 | known | output level (raw_u8) |
| 18 | 1 | known | reserved (always 0) |
| 19-20 | 2 | known | fixed (always 02 00) |
| 21 | 1 | known | display level (raw_u8) |
| 22-23 | 2 | known | midi channel (nibble_hilo) |
| 24 | 1 | known | reserved padding |
| 25 | 1 | known | midi bank (raw_u8) |
| 26-71 | 46 | known | reserved padding |
| 72-75 | 4 | checksum | checksum (CRC-16/ARC) |
| 76 | 1 | frame | SysEx end (F7) |
| Offsets | Setting | Encoding | Source |
|---|---|---|---|
| 8-9 | wet gain | nibble_hilo |
series |
| 10-11 | dry gain | nibble_hilo |
series |
| 13 | audio routing | raw_u8 |
series |
| 15 | audio format | raw_u8 |
series |
| 17 | output level | raw_u8 |
series |
| 21 | display level | raw_u8 |
series |
| 22-23 | midi channel | nibble_hilo |
series |
| 25 | midi bank | raw_u8 |
series |
- Offset 25 (midi bank) also moves when capturing display level.
Last exported: 2026-07-22