General Technology Flashcards

What is the purpose of EDID in an HDMI connection?

Answer: To allow the display to communicate its capabilities to the source device

EDID (Extended Display Identification Data) is a metadata standard that allows a display to describe its supported resolutions, refresh rates, and audio formats to the source.

In digital audio, what does a higher bit depth provide?

Answer: Greater dynamic range

Bit depth determines the number of possible amplitude values per sample; more bits yield greater dynamic range and lower quantization noise.

What does PoE stand for in network infrastructure?

Answer: Power over Ethernet

Power over Ethernet (PoE) allows network cables to carry electrical power alongside data, commonly used to power IP cameras, VoIP phones, and AV endpoints.

Which type of microphone pickup pattern captures sound equally from all directions?

Answer: Omnidirectional

An omnidirectional microphone captures sound with equal sensitivity from all directions, making it useful for capturing ambient sound or room conversations.

What is the function of a DSP (Digital Signal Processor) in an AV system?

Answer: To process, route, and manipulate audio signals in real time

A DSP performs real-time digital manipulation of audio signals, including equalization, compression, delay, and routing, replacing many analog components.

In video, what does 'aspect ratio' describe?

Answer: The proportional relationship between the width and height of an image

Aspect ratio describes the proportional relationship between an image's width and height, such as 16:9 for widescreen or 4:3 for standard definition.

Which protocol is commonly used for real-time control of lighting and other stage equipment in live events?

Answer: DMX512

DMX512 is the standard digital communication protocol used for controlling stage lighting, dimmers, and special effects equipment in live event production.