Editing Talk:1590: The Source
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This is exactly what happened to my Samsung monitor before it died. I was going to bed one night and this high-pitched noise was driving me insane. I turned my PC on, only for the monitor to go black. The problem with these high-pitched noises is that they're hard to locate. -[[Special:Contributions/162.158.90.191|162.158.90.191]] 22:04, 26 October 2015 (UTC) | This is exactly what happened to my Samsung monitor before it died. I was going to bed one night and this high-pitched noise was driving me insane. I turned my PC on, only for the monitor to go black. The problem with these high-pitched noises is that they're hard to locate. -[[Special:Contributions/162.158.90.191|162.158.90.191]] 22:04, 26 October 2015 (UTC) | ||
− | For those of us of a certain age, there was a very specific high-pitched sound in almost everyone's daily environment: the horizontal line rate (sometimes called retrace frequency) of analog televisions. For the U.S. NTSC system, this was about 15.7 kHz (PAL: 15.6 kHz). Televisions almost inevitably produced this sound because the "flyback" transformer which produced the voltage used to steer the electron beam back and forth underwent some mechanical stress each time the beam was rapidly swept back for the next line ("retrace"), thus moving some air and creating the sound. This pitch is high enough that in a room full of people there would be some who could and some who could not hear it. The sound is also quite similar to the perceived sound many people with tinnitus experience. Between these two effects, it was easy for arguments to start about whether the sound was real or not. I was always very sensitive to the sound and could tell from several rooms away if a television was on. | + | For those of us of a certain age, there was a very specific high-pitched sound in almost everyone's daily environment: the horizontal line rate (sometimes called retrace frequency) of analog televisions. For the U.S. NTSC system, this was about 15.7 kHz (PAL: 15.6 kHz). Televisions almost inevitably produced this sound because the "flyback" transformer which produced the voltage used to steer the electron beam back and forth underwent some mechanical stress each time the beam was rapidly swept back for the next line ("retrace"), thus moving some air and creating the sound. This pitch is high enough that in a room full of people there would be some who could and some who could not hear it. The sound is also quite similar to the perceived sound many people with tinnitus experience. Between these two effects, it was easy for arguments to start about whether the sound was real or not. I was always very sensitive to the sound and could tell from several rooms away if a television was on. [[Special:Contributions/162.158.56.173|162.158.56.173]] 20:42, 2 November 2015 (UTC) |
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