Effects of Noise and Task Loading on a Communication Task
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
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Previous research had shown the effect of noise on a single communication task. This research has been criticized as not being representative of a real world situation since subjects allocated all of their attention to only one task. In the present study, the effect of adding a loading task to a standard noise-communication paradigm was investigated. Subjects performed both a communication task Modified Rhyme Test House et al. 1965 and a short term memory task Sternberg, 1969 in simulated levels of aircraft noise 95, 105 and 115 dB overall sound pressure level OASPL. Task loading was varied with Sternbergs task by requiring subjects to memorize one, four, or six alphanumeric characters. Simulated aircraft noise was varied between levels of 95, 105 and 115 dB OASPL using a pink noise source. Results show that the addition of Sternbergs task and little effect on the intelligibility of the communication task while response time for the communication task increased.
- Noise Pollution and Control
- Voice Communications