| 粉噪峰值因数对声系统有效值声压级测量影响 |
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| 引用本文： | 祁家堃. 粉噪峰值因数对声系统有效值声压级测量影响[J]. 电声技术, 2012, 36(1): 74-77,88 |
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| 作者姓名： | 祁家堃 |
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| 作者单位： | 武汉无线电厂,湖北武汉,430021 |
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| 摘 要： | 当粉红噪声峰值因数不同时，对其有效值声压级测量结果是否有影响？先使用相关软件对粉红噪声信号进行生成和分析，建立不同带宽、不同峰值因数粉红噪声，然后应用它对实际的声系统进行测量，得到实际的测量结果，再加以初步的理论分析。初步结论是：只要加载的信号有效值相同，有效值声压级测量结果是一样的。同时表明不同峰值因数粉噪，对声系统频响测量是有明显影响的，对声系统音质、音色影响更大。
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| 关 键 词： | 粉红噪声 峰值因数 有效值声压级 |
Affect of the Pink Noise Peak Factor to the RMS Sound Pressure Level Measurements |
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| QI Jiakun. Affect of the Pink Noise Peak Factor to the RMS Sound Pressure Level Measurements[J]. Audio Engineering, 2012, 36(1): 74-77,88 |
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| Authors: | QI Jiakun |
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| Affiliation: | QI Jiakun ( Wuhan Radio Factory, Wuhan 430021, China) |
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| Abstract: | Generated different bandwidth, different peak factor pink noise signal, loaded into the sound system, analysis of measurement results by software are presented. As long as the same RMS pink noise signal is loaded, RMS sound pres- sure level measurements is the same. If a different crest factor pink noise signal is loaded, the sound system Frequency Re- sponse measurement is significantly affected, especially for sound quality, timbre. It is intended to provide a good under- standing of the effects of pink noise peak factor. |
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| Keywords: | pink noise peak factor RMS sound pressure level |
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