Format of SAMPARM Structure:
Offset	Size	Description	)
 00h	WORD	signature 5053h ("SP" = SAMPARM)
 02h	WORD	segment of start of sample to play
 04h	WORD	length of sample (IN WORD)
 06h	BYTE	output device (see #02962 at INT 2F/AX=8221h)
 07h	WORD	pitch to play (see #02964)
 09h	BYTE	volume (from 00h to 40h)
 0Ah	WORD	loop start
 0Ch	WORD	loop length
 0Eh	BYTE	machine speed (see INT 2F/AX=8220h)
SeeAlso: #02960