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The use of noise cancelling headphones to improve concurrent task performance in a noisy environment

机译：使用降噪耳机可改善嘈杂环境中的并发任务性能

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The main aim of the present study was to examine the effect of noise cancelling technology (e.g., headphones) on concurrent task performance within an aviation environment, namely the cabin of commercial operations. In addition, the present research sought to determine if price comparable noise cancelling headphones deliver similar performance outcomes. Thirty-six participants (23 male), all with normal hearing and with an average age of 20 years (SD = 2.12) were asked to listen to six different audio files under six different experimental conditions. The six experimental conditions were presented in a balanced Latin squares experimental design, while the audio files were presented in a counterbalanced order. Each audio file contained information about a specific aircraft that was a combination of both factual and non-factual information. The secondary task consisted of a simple mathematical exercise. Wideband noise played at 65 dB(A) and filtered to simulate aircraft noise featured in each experimental condition. At the conclusion of each audio file, participants were provided a written multi-answer test. In relation to the main aim (recognition of audio information), a series of planned comparisons revealed no differences in terms of performance between the two price comparable noise cancelling headphones. However, performance when using noise cancelling headphones was significantly better in both the single-task and dual-task condition compared to using no headphones. As expected, performance in the single-task noise cancelling condition was also superior to the dual-task noise-cancelling condition. Of particular note, there were no differences between the dual-task noise cancelling condition and the single-task no headphone condition. These results highlight the benefits of noise cancelling technology in an aviation setting.
机译：本研究的主要目的是研究噪声消除技术（例如耳机）对航空环境（即商业机舱）中同时执行的任务性能的影响。另外，本研究试图确定价格可比的降噪耳机是否提供类似的性能结果。 36名参与者（23名男性）均听力正常，平均年龄为20岁（SD = 2.12），被要求在六种不同的实验条件下收听六种不同的音频文件。六个实验条件以平衡的拉丁方格实验设计呈现，而音频文件以平衡的顺序呈现。每个音频文件都包含有关特定飞机的信息，该信息是事实和非事实信息的组合。次要任务包括一个简单的数学练习。宽带噪声以65 dB（A）的速度播放并经过滤波，以模拟每种实验条件下的飞机噪声。在每个音频文件结束时，为参与者提供了书面的多答案测试。关于主要目的（音频信息的识别），一系列计划中的比较表明，两款价格相当的降噪耳机在性能方面没有差异。但是，与不使用耳机相比，在单任务和双任务条件下使用降噪耳机时的性能要好得多。不出所料，单任务降噪条件下的性能也优于双任务降噪条件。特别要注意的是，双任务降噪条件和单任务无耳机条件之间没有差异。这些结果突出了航空环境中噪声消除技术的优势。

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