spike mike

Thân thiện

A detective places a spike mike against the wall to listen.

Definition

Noun: A spike mike is a type of contact microphone specifically designed to be driven into a wall or other solid surface to listen to conversations on the other side. It detects sound vibrations transmitted through the solid material.

Usage

The term "spike mike" is used to describe a covert listening device, typically in contexts involving surveillance, espionage, or law enforcement investigations. It is a technical and somewhat dated term.

Examples: * The detective planted a spike mike in the shared wall to gather evidence. * In classic spy films, agents often use a spike mike to eavesdrop on secret meetings.

Advanced Usage

• The term is often associated with mid-20th-century technology and narratives about surveillance before the digital age.
• Its use by law enforcement may be subject to legal restrictions regarding privacy and warrants.

Variants and Related Words

• Contact Microphone (noun): The general category of microphone to which a spike mike belongs. It transduces sound vibrations from a solid object.
• Bug (noun): A more general and common term for any concealed listening device.
• Eavesdropping Device (noun phrase): A descriptive term for any equipment used for covert listening.

Synonyms

• Contact microphone
• Covert listening device
• Surveillance microphone

Related Phrases

• To plant a spike mike: The act of secretly installing the device.
  • The agent's mission was to plant a spike mike in the embassy wall.
• Driven like a spike: Describes the method of installation, as the device is physically pushed into a surface.
  • The microphone was driven like a spike into the wooden beam.

Học thuật

Noun

1. a contact microphone for listening through walls