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furnace/doc/7-systems/amiga.md
Electric Keet 189a6f8e1a Losing the thousands separators.
2023-07-11 17:27:05 -07:00

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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

  • 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.