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A green light means that students are talking quietly, an amber light means that noise is increasing and that the pupils need to quiet down. At a red light, pupils voices are too loud and the device will emit a loud beeping sound to warn the students to stop talking. A red light can also result in disciplinary action from teachers such as ...
In April 2018, Lightspeed released Classroom Management, software which the company claims can monitor and control content loaded on devices used by students during class. [ citation needed ] Analytics
These systems provide low cost, long life, high efficacy, good color, and low levels of noise and flicker. Lighting systems should be designed with respect to the requirements of the activity to be performed. For instance, lighting over a desk should be different than light required in cafeterias or hallways. [7]
More recently even more sophisticated methods have been employed. Traffic lights are sometimes centrally controlled by monitors or by computers to allow them to be coordinated in real time to deal with changing traffic patterns. [17] Video cameras, or sensors buried in the pavement can be used to monitor traffic patterns across a city. Non ...
In the United States, a hall monitor may be either a student volunteer who is charged with maintaining order in a school's corridors, or an adult paraprofessional staff member who carries out similar duties, sometimes in conjunction with other functions. Students may be selected as hall monitors because they are considered mature and ...
Using a combination of sound absorption materials, arrays of microphones and speakers, and a digital processor, a restaurant operator can use a tablet computer to selectively control noise levels at different places in the restaurant: the microphone arrays pick up sound and send it to the digital processor, which controls the speakers to output ...
Noise measurement can also be part of a test procedure using white noise, or some other specialized form of test signal.In audio systems and broadcasting, specific methods are used to obtain subjectively valid results in order that different devices and signal paths may be compared regardless of the inconsistent spectral distribution and temporal properties of the noise that they generate.
A noise dosimeter (American) or noise dosemeter (British) is a specialized sound level meter intended specifically to measure the noise exposure of a person integrated over a period of time; usually to comply with Health and Safety regulations such as the Occupational Safety and Health (OSHA) 29 CFR 1910.95 Occupational Noise Exposure Standard ...