ref: dbe2a3b1683caeab446ece53dce8d5e8b0fd0e07 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