First post, by Jo22
Good evening everyone,
There's something that I noticed about our vintage hobby and that I would like to address.
In the 2000s, when LCD monitors did start to take over CRTs,
I didn't spend much thinking about the drawbacks of old school video monitors.
They were still commonly known, but already obsolete on their own by the flicker-free 100Hz/120Hz CRT TV sets from the 90s..
At the time, I had an excellent hearing, but I tinkered with video capture cards and VGA monitors (31 KHz, both LCD/TFT and CRT)
mainly and thus was not confronted anymore with the drawbacks of 15KHz vintage CRTs - radiation, life hazard through high voltage, flicker and noise.
Also, the few CRTs that I was most interested at the time were the hi-res monochrome monitors
that I loved to tinker with and they used higher frequencies, as well.
18KHz (Hercules/MDA) and 35.7KHz (Atari ST hi-res)..
Now, that I'm getting older, I didn't notice the fine whine of the 15KHz so intensely anymore, as I used to a few years ago still.
I suppose that's because of the slow loss of higher frequencies of the hearing..
So long story short, could it be that our (renewed) vintage CRT love causes pain to pets and children that we just overlook? 😨
I'm asking, because, I, like many others, like to casually record YT videos of vintage equipment..
Come to think that some of these videos 'on the other end' did already unintentionally contain harmful noise makes me sad.
Because, although the 31KHz whine of VGA CRTs technically is there, as well, it's not covered by the 44KHz/48KHz sampling rates (~10Hz to 22 to 24KHz range)
of normal video cameras and the average, mid quality loudspeakers and headphones (20 to 20.000Hz).
For something as high to be recorded, a 96KHz sampling rate (~10Hz to 48KHz range) would be needed.
Anyway, I just wanted to mention this.
Hope you don't mind. 🙁
"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel
//My video channel//