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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | Speedenza |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | Broad spectrum sound created by overlaying 2000 constant sine waves with frequencies chosen at random between 20Hz and 20kHz (uniform sampling).This sounds a lot like white noise (moreso than I thought it would) if you look at the power spectrum it's reasonably similar (though there are some gaps because 2000 waves isn't enough to fully fill out the spectrum).However I don't think it's (true) white noise because it lacks the necessary randomness to qualify as noise. Randomness is a big subject there's no single test for this, though autocorrelation and statistical independence are commonly employed.You can investigate this in Audacity (and similar programs) by using the Analyze | Plot Spectrum... function. |
| 标签： | experimental sine white wideband waves experiment test education noise educational sound |
| 音频格式 | wav |
| 声音时长 | 00:05 |
| 文件大小 | 430.7 KB |
| 比特率 | 705 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |