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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | paulnorthyorks |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | This synthesized siren is based on a seventh chord of 4 notes constructed using frequency ratios. The second note is 5/4 the pitch of the first note, the third note is 6/5 the pitch of the second note, and the fourth note is 5/4 the pitch of the third note. Each note has a different pitch graph applied to it. The graphs are:1st note: power of 2 (ie Square)2nd note: cube root3rd note: geometric sequence with common ratio of 0.54th note: square root This sound has had a stereo effect applied, in that there is a leftchannel delay of 0.025 seconds. This sound has been created using the Kangas Sound Editor, an opensource/freeware program available from multiple download sites on the Internet. |
| 标签： | wail wailing synthesised evacuation synthesized firebrigade stereo ambulance alarm seventhchord emergency police siren |
| 音频格式 | wav |
| 声音时长 | 00:04 |
| 文件大小 | 693.4 KB |
| 比特率 | 1411 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |