Understanding Frequency Response Curves

A microphone’s frequency response curve is a graph of how loudly it captures each pitch, and it explains why two mics sound different on the same voice. Reading the curve tells you what a mic will emphasize before you buy.

Learn to read the three key regions.

1. The low end below one hundred hertz is where proximity effect and rumble live.
2. The presence boost around three to six kilohertz adds vocal clarity.
3. The top end above ten kilohertz carries air and sibilance.

A mic with a presence peak will cut through a mix, while a flat mic sounds more neutral. Match the curve to your voice and the role the mic will play.

The curve is a starting point, not a verdict. Your voice and room interact with any mic in ways the graph cannot predict, so treat the response as a guide and always confirm with a real recording before you commit to a purchase.