Cycle 10 Broadcast Practice Exam

What is the role of compression in broadcast audio processing?

Reduces dynamic range by attenuating loud parts and boosting quieter parts to even out levels. Increases dynamic range by amplifying loud parts. Removes all background noise completely. Applies reverb to all signals.

Correct Answer:

Reduces dynamic range by attenuating loud parts and boosting quieter parts to even out levels.

Explanation:

Compression in broadcast audio processing is about taming the loud parts and lifting the quieter parts so the overall sound stays consistently loud and clear. It works by reducing gain when signals exceed a threshold, which brings down peaks, and then often applying makeup gain to raise the overall level so softer passages are more audible. The result is a smaller dynamic range and a more uniform level from moment to moment, which helps the program sit consistently in the mix and meet loudness standards. This isn’t about removing noise entirely or adding reverb, and it’s not about increasing dynamic range—the goal is the opposite: to tighten the range and smooth out levels.

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