Which detector is used to identify glass break events by monitoring sound frequencies?

Which detector is used to identify glass break events by monitoring sound frequencies?

• A. Acoustic glass break detector
• B. Stress sensor
• C. Interface device
• D. Voice verification

Answer: (A)

Detecting glass break events relies on acoustic analysis. An acoustic glass break detector uses a microphone to listen to sounds and analyze their frequency content and patterns. When glass breaks, the sound has a distinctive impulse with energy concentrated in higher frequency bands and a characteristic spectral pattern. The detector looks for both the rapid energy burst and the specific frequency signature of glass breaking, helping distinguish it from everyday noises and reduce false alarms. Stress sensors detect structural vibrations rather than sound, so they aren’t designed to identify glass-breaking sounds. Interface devices are used to communicate signals between equipment, not to analyze audio. Voice verification is about identifying a person using their voice, not detecting inanimate events like glass breaking.

Detecting glass break events relies on acoustic analysis. An acoustic glass break detector uses a microphone to listen to sounds and analyze their frequency content and patterns. When glass breaks, the sound has a distinctive impulse with energy concentrated in higher frequency bands and a characteristic spectral pattern. The detector looks for both the rapid energy burst and the specific frequency signature of glass breaking, helping distinguish it from everyday noises and reduce false alarms.

Stress sensors detect structural vibrations rather than sound, so they aren’t designed to identify glass-breaking sounds. Interface devices are used to communicate signals between equipment, not to analyze audio. Voice verification is about identifying a person using their voice, not detecting inanimate events like glass breaking.