Tally Light
A dedicated, tamper-evident physical illumination beacon on a recording device that signals active video or audio transmission to surrounding subjects.
From broadcast television engineering (c. 1950s), referring to indicator lights on studio cameras that signaled which camera was live on-air ('tallying' broadcast time).
Comprehensive Usage Guide
Dual Nuance AnalysisCommonly used in video production and electronics to denote LED indicators warning subjects that recording sensors are live.
“The broadcast studio camera had a red tally light illuminating above the teleprompter whenever the director switched to its feed.”
The foundational hardware requirement for ethical wearable camera journalism: a hardware-coupled visual signal that cannot be software-disabled.
“Our field walk recordings utilize smart glasses with an uncompromised front tally light to ensure street transparency.”
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In Defense of First-Person Capture: Point-of-View Optics, Audience Immersion, and Privacy Norms
...hardware must incorporate a mandatory, hardware-interlocked tally light . This physical illumination beacon must satisfy four technical criteria: - Hardware-Leve...
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