Dynamic microphone

Definition

A dynamic microphone is a type of microphone that uses a diaphragm attached to a coil of wire, which moves within a magnetic field to convert sound waves into electrical signals. This design makes dynamic microphones particularly robust and well-suited for high sound pressure levels, making them ideal for live performances and studio recording. They typically have a limited frequency response compared to other types of microphones but excel in handling loud sources without distortion.

5 Must Know Facts For Your Next Test

1. Dynamic microphones are highly durable and can withstand rough handling, making them suitable for stage use.
2. They do not require an external power source, as they generate their own electrical signal from sound waves.
3. Dynamic microphones have a limited frequency range, usually performing best with mid-range frequencies.
4. These microphones are less sensitive to background noise, which is beneficial in live settings.
5. They are often used in applications such as vocals, amplifiers, and drums due to their ability to handle high sound pressure levels without distortion.

Review Questions

• Compare and contrast dynamic microphones with condenser microphones in terms of their construction and typical applications.
  • Dynamic microphones use a diaphragm and coil within a magnetic field, making them more robust and better at handling high sound pressure levels. In contrast, condenser microphones utilize a capacitor that requires phantom power, allowing for greater sensitivity and a wider frequency response. While dynamic microphones are commonly used for live performances and situations where durability is needed, condenser microphones are often favored in studio settings for capturing nuanced sounds due to their sensitivity.
• Discuss how the pickup pattern of a dynamic microphone influences its use in different recording environments.
  • The pickup pattern of a dynamic microphone determines its sensitivity to sound from different angles. Common patterns include cardioid, which picks up sound primarily from the front while rejecting noise from the sides and rear. This feature makes dynamic microphones particularly useful in live settings where background noise reduction is crucial. For instance, using a cardioid dynamic microphone on stage can help isolate a vocalist’s voice while minimizing bleed from other instruments.
• Evaluate the advantages and disadvantages of using dynamic microphones in various audio production scenarios.
  • Dynamic microphones offer several advantages such as durability, ease of use without requiring phantom power, and excellent performance with high sound pressure levels. These features make them ideal for live performances and loud sound sources like drums or guitar amplifiers. However, they have disadvantages too; their limited frequency response can lead to less detailed sound capture compared to condenser microphones. In quieter studio environments where nuance is key, this might not be ideal, but in noisy settings, the background noise rejection becomes a significant advantage.

Related terms

condenser microphone:

A type of microphone that uses a capacitor to convert sound into an electrical signal, known for its wide frequency response and sensitivity.

pickup pattern: The directional sensitivity of a microphone, indicating how it picks up sound from various angles.

phantom power: A method of providing power to condenser microphones through the same cable used for audio signal transmission, typically requiring a mixer or audio interface.