CEA Audio Post-Production & Mixing 2

Question 1

Which mixing technique uses a single channel to carry both left and right signals equally, reducing stereo width?

Accepted Answer

Mono summing

Answer

Mono summing combines left and right channels into a single signal, eliminating stereo differences and reducing width. It is used to check mono compatibility of a mix.

Question 2

In audio post-production, what does ADR stand for?

Accepted Answer

Automated Dialogue Replacement

Answer

ADR (Automated Dialogue Replacement) is the process of re-recording dialogue in a studio to replace production audio that is noisy, unintelligible, or poorly recorded on set.

Question 3

What is the purpose of a de-esser in post-production mixing?

Accepted Answer

To reduce harsh sibilant sounds in vocal tracks

Answer

A de-esser is a frequency-selective compressor that targets the sibilance frequency range (typically 5–10 kHz) to reduce harsh 's' and 'sh' sounds in vocal recordings.

Question 4

What mixing approach involves blending a heavily compressed signal with the original dry signal to retain transient detail?

Accepted Answer

Parallel compression

Answer

Parallel compression (also known as New York compression) mixes a compressed version of a signal with the uncompressed original, adding density and sustain while preserving the punch of natural transients.

Question 5

In a 5.1 surround mix, which channel is specifically designated for low-frequency effects (LFE)?

Accepted Answer

.1 subwoofer channel

Answer

The '.1' in 5.1 refers to the dedicated LFE (Low Frequency Effects) channel, which carries bass-heavy sound effects and is routed to the subwoofer. It is band-limited to approximately 120 Hz.

(CEA) Certified Audio Engineer Practice Test

(CEA) Certified Audio Engineer Practice Test

CEA Audio Post-Production & Mixing 2