Optoma EP610H User Manual - Page 16

English 16 4Treble The treble setting controls the higer frequencies of your audio source. l Press the left button to decrease the volume. l Press the right button to increase the volume 4Mute l Choose the left icon to make the volume function ineffective. l Choose the right icon to make the volume function effective. 4Mono / Stereo / Stereo-enhance l Mono: Mono sound effect. l Stereo: Stereo sound effect. l Stereo-enhance: Stereo-enhance sound effect. Projection 4Front-Desktop The factory default setting. 4Rear-Desktop When you select this function, the projector reverses the image so you can project behind a translucent screen. 4Front-Ceiling When you select this function, the projector truns the image upside down for ceiling-mounted projection. 4Rear-Ceiling When you select this function, the projector reverses and truns the image upside down at same time. You can project from behind a translucent screen with ceiling mounted projection. 416 : 9 (Video mode only) You can select this function to fit your DVD aspect ratio type. 44 : 3 (Video mode only) You can select this function to fit your DVD aspect ratio type.