furnace/doc/4-instrument/psg.md
2023-08-14 18:52:58 +02:00

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# Sega PSG instrument editor
The instrument editor for Sega PSG (SMS, and other TI SN76489 derivatives) consists of these macros:
- **Volume**: volume.
- **Arpeggio**: pitch in half-steps.
- **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.
- **Pitch**: fine pitch.
- **Phase Reset**: trigger restart of waveform.