ref: 4992ae2233d55a045e5e6803bc76972704c1a082 dir: /audio/sfx/trade_machine_3.asm/
SFX_Trade_Machine_3_Ch4: duty 2 unknownsfx0x10 21 unknownsfx0x20 15, 240, 240, 4 unknownsfx0x20 15, 242, 80, 6 unknownsfx0x10 8 endchannel