Condenser microphones
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Condenser Microphones. Condenser microphones, also called electrostatic or capacitor microphones, convert sound into electricity using electro static principals. They have two plate elements, one moveable and one fixed.

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Condenser microphones

CondenserMicrophones


Condenser operation

Condenser microphones, also called electrostatic or capacitor microphones, convert sound into electricity using electrostatic principals.

They have two plate elements, one moveable and one fixed.

The moveable plate is given an electrical charge from a power source, creating electrostatic energy between the plates.

Condenser Operation


Condenser microphones

Cross-Section of a Typical Condenser Microphone

  • They have two plate elements, one moveable and one fixed.

  • The moveable plate is given an electrical charge from a power source, creating electrostatic energy between the plates.


Operation continued

Sound waves vibrate the movable plate.

As the distance between the two plates changes, the amount of stored electricity changes.

Operation Continued


Condenser mics are sensitive

Condenser mics are very sensitive, and can respond quickly and accurately to sound.

Condenser mics are sensitive


Inside a condenser microphone

The signal out of the capacitor is small and must be pre-amplified or boosted.

Since capacitors require a charge, condenser microphones require a power source from a battery or phantom power.

Inside a Condenser Microphone

These Microphones need power


Not too much sound pressure

They are used in situations where they are not subjected to much sound pressure.

Not too much sound pressure

Sound pressure level history


Condenser mics

Because to much sound pressure.condenser mics can handle high frequencies well, they are used in musical applications – in the string section of an orchestra for example.

Condenser mics