furnace/doc/4-instrument/psg.md
Electric Keet 6f0330f04c A whole mess of small doc updates and fixes.
Finally, proper macro images! And lots of little nitpicks and clean-up of text.
2024-10-09 23:52:49 -05:00

15 lines
555 B
Markdown

# Sega PSG instrument editor
the instrument editor for Sega PSG, SMS, and other TI SN76489 derivatives consists of these macros:
- **Volume**: volume sequence.
- **Arpeggio**: pitch sequence.
- **Duty**: noise mode.
- `0`: short noise; preset frequencies.
- `1`: long noise; preset frequencies.
- `2`: short noise; use channel 3 for frequency.
- `3`: long noise; use channel 3 for frequency.
- **Panning**: output for left and right channels.
- only on Game Gear!
- **Pitch**: fine pitch.
- **Phase Reset**: trigger restart of **noise only**.