Which microphone picks up sound predominantly from one direction?

Which microphone picks up sound predominantly from one direction?

• A. Unidirectional Microphone
• B. Omnidirectional Microphone
• C. Bidirectional Microphone
• D. Lavalier Microphone

Answer: (A)

The key idea is directional pickup patterns: a microphone that picks up sound predominantly from one direction is designed to focus on the source in front of it while suppressing sounds from the sides and rear. This is what a unidirectional microphone does. It’s built to be most sensitive to sound coming from one direction (often the front) and less sensitive to sounds from other directions, which helps isolate the speaker and reduce background noise or feedback. Omnidirectional mics pick up from all around, so they don’t isolate a single source. Bidirectional mics (front and back) pick up sound from two opposite directions, not just one. A lavalier is a form-factor for a small clip-on mic and can be omnidirectional or directional depending on the design, but simply being a lavalier doesn’t guarantee the one-direction focus described by unidirectional.

The key idea is directional pickup patterns: a microphone that picks up sound predominantly from one direction is designed to focus on the source in front of it while suppressing sounds from the sides and rear. This is what a unidirectional microphone does. It’s built to be most sensitive to sound coming from one direction (often the front) and less sensitive to sounds from other directions, which helps isolate the speaker and reduce background noise or feedback.

Omnidirectional mics pick up from all around, so they don’t isolate a single source. Bidirectional mics (front and back) pick up sound from two opposite directions, not just one. A lavalier is a form-factor for a small clip-on mic and can be omnidirectional or directional depending on the design, but simply being a lavalier doesn’t guarantee the one-direction focus described by unidirectional.