| 王恺,许勇,许龙,吴鸣.强噪声环境中汉语数码报文可懂度测试方法*[J].,2025,43(3):548-556 |
| 强噪声环境中汉语数码报文可懂度测试方法* |
| Research on mandarin speech intelligibility testing methods in high power noise environments |
| 投稿时间：2024-01-25 修订日期：2025-04-25 |
| 中文摘要: |
| 可懂度是衡量通信系统质量的关键指标,强噪声环境下难以直接通过主观测试方法测试可懂度。本文提出了一种主观可懂度间接测试方法,设计了三种听音信号生成模式。在90 dB~110 dB粉红噪声环境中完成了汉语数码报文的可懂度测试实验,分析了强噪声环境下噪声声压级、信噪比等因素对数码报文、数字的可懂度间接测试结果的影响规律,进而研究了强噪声环境下可懂度直接、间接测试结果的相关性。结果显示,在强噪声环境下无法直接进行可懂度主观测试时,间接测试可作为一种补充方案使用。 |
| 英文摘要: |
| Intelligibility is a key index for evaluating the quality of communication system. However it is difficult to test the intelligibility directly by subjective test method in high-power noise environment. This paper proposes an indirect test method for testing the subjective intelligibility, designs three listening signal generation modes. This study conducts the intelligibility tests on Chinese digital messages in 90 dB~110 dB pink noise, analyzing the influence of noise sound pressure level(SPL), signal-to-noise ratio and other factors on the indirect test outcomes for the intelligibility of digital messages and figures in high power noise conditions. The correlation between the direct and indirect intelligibility test results in a high power noise environment is also investigated. The results show that the indirect test can be used as a supplementary program when conducting a direct subjective intelligibility test is unfeasible in high-power noise environments. |
| DOI：10.11684/j.issn.1000-310X.2025.03.002 |
| 中文关键词: 普通话 可懂度 主观测试 强噪声 |
| 英文关键词: Mandarin Speech Intelligibility Subjective Rating High Power Noise |
| 基金项目:国家自然科学基金(11474307,12074354) |
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