Dynamic microphone

Definition

A dynamic microphone is a type of microphone that converts sound into an electrical signal using a diaphragm attached to a coil of wire, which moves within a magnetic field. This design makes dynamic microphones durable and ideal for live sound situations and recording environments where they can capture loud sounds without distortion. They are commonly used in interviews, music performances, and broadcasting, making them essential tools in audio and video production.

5 Must Know Facts For Your Next Test

1. Dynamic microphones are less sensitive than condenser microphones, making them less likely to pick up background noise.
2. They can handle high sound pressure levels (SPL), which is why they're often used for loud instruments like drums and electric guitars.
3. Dynamic microphones do not require an external power source, unlike condenser microphones that need phantom power to operate.
4. They are typically more rugged and durable compared to other types of microphones, making them suitable for touring and live performances.
5. Common examples of dynamic microphones include the Shure SM58 and the Sennheiser e835, both popular choices among musicians and broadcasters.

Review Questions

• How do dynamic microphones differ from condenser microphones in terms of design and functionality?
  • Dynamic microphones use a diaphragm connected to a coil that moves within a magnetic field to create an electrical signal, while condenser microphones rely on a capacitor that requires phantom power to function. Dynamic mics are generally more durable and handle high sound pressure levels better, making them ideal for loud sources. In contrast, condenser mics are more sensitive and better at capturing subtle sounds, which makes each type suited for different recording situations.
• Discuss the advantages of using dynamic microphones in live audio situations compared to other microphone types.
  • Dynamic microphones offer several advantages in live audio situations, including their durability and ability to withstand rough handling during performances. Their lower sensitivity helps minimize feedback from loud speakers, making them safer for use in concert settings. Additionally, since they do not require external power sources like condenser mics, they are easier to set up quickly during events. These features make dynamic microphones a go-to choice for many sound engineers when managing live sound.
• Evaluate the impact of choosing the right type of microphone on the quality of audio in investigative reporting.
  • Choosing the right type of microphone significantly affects audio quality in investigative reporting by influencing clarity, background noise levels, and overall presentation. Dynamic microphones are ideal for capturing loud sounds without distortion while minimizing unwanted noise. This is crucial when conducting interviews in noisy environments or outdoor settings. By understanding the strengths of dynamic mics and applying them appropriately, reporters can ensure their audio recordings are professional, clear, and impactful, enhancing the overall effectiveness of their investigations.

Related terms

Condenser microphone: A type of microphone that uses a capacitor to convert sound waves into electrical signals, known for its sensitivity and ability to capture subtle nuances in sound.

Microphone polar patterns: The directional sensitivity of a microphone, indicating how well it picks up sound from different angles, including omnidirectional, cardioid, and supercardioid patterns.

Phantom power: A method of providing power to condenser microphones through the microphone cable, usually requiring a power source or mixer to deliver the necessary voltage.