CBT CBT Studio Production Technology

Question 1

What does a routing switcher (router) do in a broadcast facility?

Accepted Answer

Connects any input source to any output destination under software control

Answer

A routing switcher allows any input signal (video, audio, or data) to be connected to any output destination, providing flexible signal distribution throughout the facility.

Question 2

What is the purpose of a house sync (black burst or tri-level sync) signal in a broadcast facility?

Accepted Answer

Synchronizes all video equipment to a common timing reference

Answer

House sync provides a facility-wide timing reference so all video equipment operates at exactly the same frequency and phase, preventing frame tears during switching.

Question 3

What is a frame synchronizer used for in broadcast?

Accepted Answer

To synchronize an asynchronous incoming signal to the facility's house sync

Answer

A frame synchronizer captures an incoming video signal and re-clocks it to match the local house sync, allowing asynchronous signals (like satellite feeds) to be cleanly integrated.

Question 4

What does SMPTE timecode provide in broadcast production?

Accepted Answer

An absolute time address (hours:minutes:seconds:frames) for every video frame

Answer

SMPTE timecode assigns a unique hours:minutes:seconds:frames address to every video frame, enabling precise editing, logging, and synchronization of production elements.

Question 5

What is the difference between drop-frame and non-drop-frame SMPTE timecode?

Accepted Answer

Drop-frame skips certain frame numbers to keep timecode aligned with real clock time at 29.97 fps

Answer

Drop-frame timecode compensates for the 29.97 fps rate (not exactly 30 fps) by skipping frame numbers 00 and 01 at the start of each minute, except every 10th minute, keeping timecode aligned with wall clock time.

(CBT) Certified Broadcast Technologist Practice Test

(CBT) Certified Broadcast Technologist Practice Test

CBT CBT Studio Production Technology