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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | zimbot |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | A complex sound rather similar to, but not exactly like, the "astrogator" sound effect heard in some bridge scenes of the original series of Star Trek. Rather than merely modulating some pure tones, this approach uses a primary fundamental that is noisy, FM modulated, and amplitudepulsed in a way intended to match the original sound, and then two separate filtering paths are used. The original sound appears to have been nonpure, probably a tape recording of some more organic sound, wavering, and send through a very peaky resonant filter to create the upperfrequency chirps. In my case, I built an analog box circuit to all the upper frequencies portion to come mostly from the third harmonic of the fundamental as it excites a resonant filter. But it isn't exact. Getting something to sound just like the original seems nearly impossible, other than by direct sampling of course. But with the analog box circuit, I can vary all sorts of parameters. So this particular sound clip is built from 3 different circuits, two of which used the dualfiltering paths from a noisy oscillator as described above, and another that used a more spectrumbased analysis alone. These were combined into one circuit and I saved some output while varying certain parameters. I then edited the result in Cool Edit Pro to overlay two separate segments with chorus on one and flange on another, and worked the ends to form a loop. No, it doesn't sound just like the original, but it is a fun and similarenough sound that it might prove useful to someone for something. |
| 标签： | loop abox background sttos equipment startrek scifi noise bridge |
| 音频格式 | wav |
| 声音时长 | 00:50 |
| 文件大小 | 8.4 MB |
| 比特率 | 1407 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |