What inherent flaw in the carbon method drove later microphone engineering toward condenser and dynamic types?

Answer

Distortion due to the complex, non-linear way the carbon compressed.

Engineers understood that while the carbon microphone was loud, it introduced distortion due to the complex, non-linear way the carbon compressed when sound waves hit the diaphragm.

What inherent flaw in the carbon method drove later microphone engineering toward condenser and dynamic types?
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