Just add video parameter 320X240, ( 640X480) draws too much power.To quote myself from a posting that got swamped, by "but what about me" postings, as usual.
Core settings: bilinear filtering 3point, framebuffer deactivated,
System settings: 1.7 OC
Video Settings: threaded video on, vsync off
Driver Settings: driver audio switch_thread
= no sound crackle on Zelda OOT.