If you have ever been jolted awake by a car roaring down your street, you know how quickly the sound disappears.
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sound → jolt → street
By the time someone calls the police, the driver could already be several blocks away.
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driver → call → police
Now cities are turning to technology for help.
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cities → turn → help
We've repeatedly reported on Flock license plate readers popping up along roads and in parking lots.
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readers → report → lots
Another type of roadside camera is gaining ground, and this one listens.
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one → gain → ground
Noise cameras use microphones, cameras and software to pinpoint a loud vehicle.
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cameras → use → vehicle
Some also capture its license plate.
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Some → capture → plate
Depending on the program, that can lead to a warning, a review by an official or a citation.
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that → depend → official
At least 10 U.S. jurisdictions have deployed or piloted noise-camera technology in recent years.
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jurisdictions → deploy → years
More communities are preparing programs or looking at whether to follow.
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communities → prepare → programs
New York City has one of the most established enforcement programs, while places from Iowa to Hawaii have taken very different approaches.
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places → have → approaches
Here is where noise cameras are already showing up, who makes them and what this growing roadside technology could mean for drivers across the country.
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technology → show → country
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you → miss → replay
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you → walk → doctor
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experience → need → ?
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Noise cameras are already handing out tickets
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cameras → watch → tickets
New York City gives us one of the clearest looks at how far noise-camera enforcement can go.
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enforcement → give → looks
The city's Department of Environmental Protection operated 12 cameras in 2025.
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Department → operate → 2025
Those cameras recorded 15,994 noise events and generated 1,691 summonses.
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cameras → record → summonses
The system can target excessive engine or muffler noise.
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system → target → noise
It can also capture certain horn and vehicle-music violations.
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It → capture → violations
A muffler violation carries a minimum penalty of $800, while the maximum can reach $2,625.
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maximum → carry → 2,625
New York's cameras combine microphones with video and a license plate reader.
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cameras → combine → video
When the microphones detect noise above a preset level, the system attempts to pinpoint which vehicle produced it.
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vehicle → detect → it
City staff can then review the evidence before issuing a summons.
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staff → review → summons
The company behind New York's equipment is Intelligent Instruments Ltd., a U.K. company that makes the SoundVue noise-camera system.
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that → make → system
New York paid the company for equipment, calibration and service during 2025.
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York → pay → 2025
One company keeps showing up in U.S. noise-camera programs
Intelligent Instruments is becoming a familiar name in this space.
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Instruments → show → space
SoundVue combines an array of microphones with cameras and software designed to locate the loudest vehicle.
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SoundVue → combine → vehicle
It can also connect with automatic license plate recognition technology.
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It → connect → technology
Knoxville, Tennessee, has used the technology in a mobile noise-camera program.
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Knoxville → use → program
The camera records information tied to excessive-noise events, including the time, location, type of vehicle and license plate.
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camera → record → vehicle
Knoxville says the camera can support warnings, but the city currently does not use it to issue camera-generated citations.
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city → say → citations
The system originally came from 24 Acoustics, another Southampton, U.K.-based company.
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system → come → Acoustics
Knoxville's current city page says that camera technology now trades through Intelligent Instruments.
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technology → say → Instruments
Miami Beach also tested three Intelligent Instruments systems.
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Beach → test → systems
The city launched its noise-meter and camera pilot to see whether the equipment could identify the correct vehicle under different traffic conditions.
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equipment → launch → conditions
Florida law prevented Miami Beach from using camera evidence to issue automated noise citations during that pilot.
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law → prevent → pilot
Miami Beach has since taken another approach.
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Beach → take → approach
In July 2026, the city launched a year-long Quiet Zone pilot in the South of Fifth neighborhood.
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city → launch → neighborhood
…and 145 more, not listed.
The Aporia
