Podcast Production Audio Engineering & Mixing 3

Question 1

What is the difference between RMS and peak levels in podcast audio metering?

Accepted Answer

RMS measures average loudness over time; peak measures the highest instantaneous level

Answer

RMS measures the highest level; peak measures average loudness

Answer

Both measure the same thing using different scales

Answer

RMS applies to stereo files; peak applies only to mono

Question 2

What is 'clipping' in digital audio and why must it be avoided in podcast production?

Accepted Answer

Distortion that occurs when a signal exceeds 0 dBFS, causing harsh crackling

Answer

A fade-in technique used at the start of episodes

Answer

Unwanted silence inserted between audio clips

Answer

A method for reducing file size during export

Question 3

Which plugin type is most effective for removing consistent background hum (e.g., AC noise) from a podcast recording?

Accepted Answer

Noise reduction / spectral repair plugin

Answer

Dynamic range compressor

Answer

Harmonic exciter

Answer

Stereo imager

Question 4

What is the purpose of a limiter in the mastering chain for a podcast?

Accepted Answer

To prevent the final output from exceeding a set ceiling, avoiding clipping on all platforms

Answer

To boost quiet passages above a threshold

Answer

To add harmonic saturation to the voice track

Answer

To widen the stereo image of the final mix

Question 5

What does 'phasing' sound like and what commonly causes it in podcast recordings?

Accepted Answer

A hollow, canceling sound caused by two microphones picking up the same source at slightly different times

Answer

A distorted buzzing from electrical interference

Answer

Excessive reverb from a large recording space

Answer

A high-pitched whistle from microphone feedback

Question 6

What is the recommended bit rate for exporting a podcast episode in MP3 format?

Accepted Answer

128 kbps for mono; 192 kbps for stereo

Answer

32 kbps for all podcasts

Answer

320 kbps is required for all platforms

Answer

64 kbps mono for maximum compatibility