Int 80/BX=0400h

BX = 0400h
AX = sound source (see #03974)

Return:
CF clear if successful
AX = volume
CF set on error
AX = error code (see #03972 at INT 80/BL=00h)

See Also: BX=0401h"SBSIM"

(Table 03974) Values for SBSIM sound source: 00h master volume 01h voice 02h FM 03h CD 04h line in 05h microphone