If you have any such applications, cancel them before starting the LANG Master program. You hear backgroud noise while playing sound. The noise can be almost entirely eliminated by connecting the sound card to an amplifier and reducing the pitch. Poorer sound quality is also caused by the use of a compression program for sound data storing. The employed compression is the best in its category - it is also used by Microsoft in Windows 95.
Sound volume is too low or too high.
The sound volume can usually be set using the volume control device on the card's cover shield. Sometimes, however, it requires a software setting - see your sound card manual. Sound is distorted. There are many possible causes, e.g. low quality of loudspeakers. Some sound cards allow for the setting of both the volume and tone.