Dynamic microphone

Definition

A dynamic microphone is a type of microphone that operates using an electromagnetic induction principle, where sound waves cause a diaphragm to move within a magnetic field, generating an electrical signal. This design makes dynamic microphones particularly robust and capable of handling high sound pressure levels, making them suitable for live sound applications and various recording environments.

5 Must Know Facts For Your Next Test

1. Dynamic microphones are generally more durable than other types due to their simple construction and ability to withstand rough handling.
2. They excel at capturing louder sounds, making them ideal for live performances, loud instruments like drums, and high-volume vocal applications.
3. Dynamic microphones have a limited frequency response compared to condenser microphones, which means they might not capture all the nuances of softer sounds.
4. They do not require an external power supply, which makes them convenient for use in various settings without the need for batteries or phantom power.
5. Popular models of dynamic microphones include the Shure SM58 and SM57, both widely used in the music industry for vocals and instrument amplification.

Review Questions

• How does the construction of a dynamic microphone contribute to its durability and performance in live sound situations?
  • The construction of a dynamic microphone includes a diaphragm attached to a coil of wire placed in a magnetic field. This simple design allows it to handle high sound pressure levels without distortion, making it very durable for live sound situations. The robustness of the materials used means they can endure rough handling and the rigors of touring, which is essential in environments where equipment is frequently transported and set up.
• Compare and contrast the advantages and disadvantages of dynamic microphones versus condenser microphones in studio recording.
  • Dynamic microphones are less sensitive than condenser microphones, making them ideal for loud sources but potentially missing nuances in softer sounds. They do not require external power, which adds convenience. On the other hand, condenser microphones are more sensitive and provide greater detail in recordings, making them preferred for studio settings. However, they can be more delicate and require careful handling. This contrast highlights how each type serves specific needs based on the recording environment and audio source.
• Evaluate the significance of the frequency response of dynamic microphones when considering their application in various audio settings.
  • The frequency response of dynamic microphones is generally narrower than that of condenser microphones, which can affect their application in different audio settings. While they effectively capture high sound pressure levels, this limited response may not accurately reproduce lower frequencies or subtle nuances in softer sounds. Therefore, when choosing a microphone for specific applications—like studio recording versus live performance—understanding this frequency response is crucial as it influences the overall sound quality and suitability for capturing certain audio elements.

Related terms

condenser microphone:

A condenser microphone is a type of microphone that uses a diaphragm placed close to a backplate to create capacitance, requiring an external power source for operation, and is often favored for studio recording due to its sensitivity and clarity.

microphone pickup pattern: The microphone pickup pattern describes how well a microphone captures sound from different directions, with common patterns including cardioid, omnidirectional, and bidirectional.

sound pressure level (SPL): Sound pressure level (SPL) measures the pressure level of sound in decibels (dB), indicating how loud a sound is; dynamic microphones are known for their ability to handle high SPLs without distortion.