What is a key feature of a condenser microphone?

A condenser microphone is characterized by having a diaphragm that generates an electrical signal in response to sound waves, and it requires a power source to function effectively. This power source often comes from phantom power supplied by audio interfaces or mixers, or from batteries in some models. The diaphragm in a condenser microphone is extremely sensitive and is able to capture a wide frequency range and subtle nuances in sound, making it ideal for studio recording, vocals, and acoustic instruments.

The requirement for an external power source is fundamental to the design and operation of condenser microphones. Without it, the microphone would not be able to convert the acoustic energy into the electrical energy necessary for sound recording. This is distinctly different from dynamic microphones, which typically do not require external power and operate differently by using electromagnetic induction. Understanding this key feature helps in selecting the right type of microphone for specific recording needs, emphasizing the advantages and applications of condenser microphones in professional audio settings.