Electro-acoustic transducer and Microphone

Electro-acoustic transducer noun - A transducer that converts electrical to acoustic energy or vice versa.

Microphone and electro-acoustic transducer are semantically related. In some cases you can replace term "Microphone" with "Electro-acoustic transducer", this terms are similar.

Microphone noun - Device for converting sound waves into electrical energy.

Electro-acoustic transducer and microphone are semantically related. Sometimes you can use "Electro-acoustic transducer" instead a noun "Microphone".