INT 62 u - FGDRIVER v4.02 - "FG_HUSH" - STOP ASYNCHRONOUS SOUND IMMEDIATELY
	AX = 0059h
Notes:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
	This function immediately stops any sounds started with "FG_MUSICB",
	  "FG_SOUNDS", or "FG_VOICES"; it is ignored if no asynchronous sound
	  is playing
SeeAlso: AX=005Ah,AX=0081h,AX=00BDh,AX=00DCh