An image anomaly that can be seen by a small percentage of people when viewing a single chip DLPTM front or rear projection system. The anomaly appears as a color breakup at the edge of objects when the eye transitions rapidly between light and dark areas of the image. The problem is characteristic of sequential color systems with low refresh rates.Â

Unbalanced connection used extensively in consumer electronics to send a line-level signal. Also called phono.

All-in-one display consisting of a translucent screen with a rear projector system.

Red push occurs when a color decoder accentuates the color of red as compared to blue and green. This is sometimes done intentionally to compensate for an overly blue color temperature.

The speed at which a display updates its picture given in Hz.

A measure of the ability of a display or sound system to render detail.

The frequency at which any physical object naturally oscillates. All objects have this property including rooms, which will favor certain frequencies over others and may 'color' sound.

Phenomenon of outgoing signals to reflect back on themselves on cables longer than ¼ of a wavelength. Measured in dB where lower is better.

All sound reflections within an enclosed space that continue to bounce around after the source has stopped. Also an audio effect, which mimics various room sizes.

Measurement of reflected sound to dissipate within a room by -60dB given in seconds. A home theater should be around .4 seconds.

Radio Frequency.

Radio Frequency Interference.

Red, Green and Blue. A component signal representing each color separately. Sync signals can be sent on green or sent separately as a composite signal or dual H/V signals (Horizontal sync/Vertical sync). Very common signal for analog computer displays.

Root Mean Square. Commonly used as a power measurement for higher-end audio amplifiers, it is an average output as opposed to peak. Usually placed as a suffix to a wattage rating.

Rear-Projection TeleVision. All-in-one display consisting of a translucent screen with a rear projector.