| 丁松涛,刘辉仁,李小银,袁晓华,朱贤森.防毒面具语言清晰度试验研究[J].,2000,19(6):4-8 |
| 防毒面具语言清晰度试验研究 |
| Speech articulation tests of the chemical protective masks |
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| 中文摘要: |
| 在低背景噪声的野外环境中，采用小闭集汉语（声母）清晰度测试方法，试验比较了四种防毒面具的清晰度水平。测试结果证实：与不佩戴面具相比，佩戴面具后语言清晰度得分严重降低，并随通话距离的增加而进一步恶化；以７５％清晰度得分作为通话性能的可接受限度，那么，不佩戴面具及佩戴四种面具的有效通话距离分别为 ６３．６、１５．７、１８．６、２５．０和 ２６．９ ｍ。此外，结合对四种面具传声特性测定结果，本文还分析了清晰度测试方法及其结果的合理性。 |
| 英文摘要: |
| The Articulation scores of four types of protective mask were evaluated using the small closed-set Chinese intelligibility testing materials. Tests were performed under the low background noise-level, outdoor conditions at face-to-face communicating distances of 4, 8, 16, and 32 m. The frequency responses of voicemitters of the masks were also measured. The test results of without-(Control) and with-mask indicated that speech intelligibility with the four types of mask was unsatisfactory, and speech articulation score progressively decreased as communicating distances. Based on the intelligibility requirement of 75%, the effective communicating distances for the Control and the four types of mask were 63.6, 15.7, 18.6, 25.0 and 26.9 m, respectively. The intelligibility test results agree roughly with the frequency response results of the four types of mask. |
| DOI：10.11684/j.issn.1000-310X.2000.06.002 |
| 中文关键词: 防毒面具 语言清晰度测试 室外环境 |
| 英文关键词: Protective mask Speech articulation test Outdoor environment |
| 基金项目: |
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