furnace/doc/7-systems/amiga.md

Commodore Amiga

a computer with a desktop OS, lifelike graphics and 4 channels of PCM sound in 1985? no way!

in this very computer music trackers were born...

imported MOD files use this chip, and will set A-4 tuning to 436.

effects

• 10xx: toggle low-pass filter. 0 turns it off and 1 turns it on.
• 11xx: toggle amplitude modulation with the next channel.
  • does not work on the last channel.
• 12xx: toggle period (frequency) modulation with the next channel.
  • does not work on the last channel.
• 13xx: change wave.
  • only works when "Mode" is set to "Wavetable" in the instrument.

info

this chip uses the Generic Sample instrument editor.

• the maximum rate for sample playback is technically 31469Hz but anything higher than 28867Hz will sound glitchy on hardware.
• sample lengths and loop will be set to an even number.
• samples can't be longer than 131070.