Question

Frequency response of a microphone depends on nature of the metal diaphragm and the shape of the case. (True/False)

Hint:

To achieve a highly accurate, flat frequency response, professional studio condenser microphones use extremely thin gold-sputtered Mylar diaphragms and acoustically tuned housings to minimize cabinet resonance.

Answer 1

Step 1: Understanding Microphone Frequency Response:
The frequency response of a microphone refers to how accurately it converts different audio frequencies (from $20\text{ Hz}$ to $20\text{ kHz}$) into proportional electrical signals. A flat, uniform response across the audible range is ideal for high-fidelity recording.

Step 2: Factors Influencing Frequency Response:

• Nature of the Metal Diaphragm: The diaphragm's mass, thickness, elasticity, and tension determine its mechanical resonance. A lightweight, flexible diaphragm responds much better to high-frequency, transient sounds.
• Shape and Volume of the Case: The microphone housing acts as an acoustic resonant cavity. The internal volume and ports can create acoustic resonance or damping at specific frequencies, shaping the microphone's final response curve.

Step 3: Conclusion:
Since both the diaphragm's physical properties and the casing's acoustic design directly shape how a microphone responds to different frequencies, the statement is True.