Int 48 Fn 02 - Ti Professional Pc - Speaker Device - Set Speaker Frequen [b] AH = 02h CX = frequency divisor (freq = 1250000 / CX)Return: nothingSee Also: AH=00h,AH=01h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh