SOYO SY-P4X400 DRAGON Ultra User Manual page 150

Advanced - Sound effects
Sound effects dialog allows you to modify the special environment
sound effects of the song and game being played. Currently, these
effectors can only be used for the player or the game which utilizes
DirectSound 2D and 3D to playback their music. Virtual 5.1 option
will try to simulate surround sounds even your digital audio sources
are only 2 channels.
Advanced - Options
Options dialog provides a hot key setting to control the Mixer in an
easy way. Please note that this might affect other applications if
you use the same hot key setting. Please use 'Load Mixer
Defaults' to change all settings to default values. "Enable
Microphone Booster" will enable +12dB microphone input signal
gain.
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