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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | kb7clx |
| 许可： | CC0 公众共享许可协议 |
| 描述： | Electromagnetic interference from the Colorino Talking Color Identifier and Light Probe when held near the internal Ferrite antenna on the back right of a 13yearold boombox near the bottom of the AM broadcast band, from 530 to 580 khz. You first hear the device inactive being brought near the radio. This gives a low buzz of stacato clicks. At about 00:23 the light probe button is briefly pushed, you hear a quick boop of the light probe with low light level combined with the beginning of the white noise of the device active. If you put your ear near it after you use it, you will hear a slight hiss from the audio amplifier carrier idling for about a minute after last use. On the AM radio this translates to white noise. At 00:26 there is a double click and a distorted voice says black. The voice is being picked up by the AM radio. 10 seconds of white noise and I press the color button again and it says black. I put something else over the color sensor and it says a few more things. At 00:51 I hold down the light probe button and try to point it at the light above my desk while still holding it close enough to the radio to pick up the EMI signal. You hear a warbling tone at 00:59 as the light reaching the sensor increases and decreases in brightness depending on how it's pointed. The signal fades in and out as the device is moved around. This has all happened at 530 khz. At 01:37 I step the radio up to 580 khz where you get a stronger signal. WIBW from Topeka competes with the noise throughout the rest of the file. At 01:51 you hear the distorted error beep as I press the color button without anything but air and light in front of the color sensor. It must be pressed up against the thing you want the color of, or it gets in too much ambient light and errors out with a loud protesting beep. |
| 标签： | assistivetechnology voice radio english tones am male wibw radiointerference tick radiostation warbling amradio noise speech rf 580khz colordetector click electronic 530khz female pulses glitch lightprobe EMI lofi colorblind EMF blind |
| 音频格式 | wav |
| 声音时长 | 02:01 |
| 文件大小 | 20.4 MB |
| 比特率 | 1409 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |