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Isnt something similar possible for cars? Based on certain frequencies in the motor area, you can deduce what is faulty?
Isnt something similar possible for cars? Based on certain frequencies in the motor area, you can deduce what is faulty?
https://www.analog.com/en/lp/001/machine-health-sensing.html
Another trick is not to use constant RPM because you can hit some mechanical resonance point, but constantly varying RPM around target RPM so that the system even if it hits resonance stays there only for a brief moment and won't start vibrating.
> Spread spectrum clocking is a technique used in electronics design to intentionally modulate the ideal position of the clock edge such that the resulting signal’s spectrum is “spread”, around the ideal frequency of the clock. In timing circuits, this has the advantage of reducing Electromagnetic Interference (EMI) associated with the fundamental frequency of the signal.
https://www.microsemi.com/document-portal/doc_view/135439-wh...
Why use mics for that if they have direct access to rpm of fans?
The thread explains one possible reason why. You should read the link before commenting. The reason proposed is that if the environment is loud, you won't be bothered by additional noise from the fans.
Twitter doesn’t show threads to people who are not logged in (e.g. if you don’t have an account). Shaming people for not reading what they can’t see (or even know exists) is unfair. Using archival sites doesn’t work as a bypass like on newspaper sites.
Not to mention people on Firefox, which from what I have read on HN might not even have access to it at all.
Twitter links should probably be downranked on HN until (if/when) they return to being more accessible.
Earlier quoted context omitted.
It is a machine you literally have on your head. I have not tried it, but I can believe that it requires some different UX considerations than normal computers. I would definitely not like to hear fan noise vibrating through my head.
Wait till you experience visual stutter in VR then...
Earlier quoted context omitted.
It seems a mis-prioritization of the kind that makes me dislike Apple products. To avoid the imperfection of a bit of fan noise, throttle the entire experience. Great.
Being purely subjective if the user is less likely to notice the throttling than they are the fan noise, then it seems like the right call.
Earlier quoted context omitted.
The thread explains one possible reason why. You should read the link before commenting. The reason proposed is that if the environment is loud, you won't be bothered by additional noise from the fans.
> You should read the link before commenting. Twitter doesn’t show threads to people who are not logged in (e.g. if you don’t have an account). Shaming people for not reading what they can’t see (or even know exists) is unfair. Using archival sites doesn’t work as a bypass like on newspaper sites. Not to mention people on Firefox, which from what I have read on HN might not even have access to it at all . Twitter lin…
However - I find that less onerous than a paywall and HN is mostly fine about those.
Another trick is not to use constant RPM because you can hit some mechanical resonance point, but constantly varying RPM around target RPM so that the system even if it hits resonance stays there only for a brief moment and won't start vibrating.
They do the same with clock signals in some systems. Similar idea to avoid high peaks at a single frequency: > Spread spectrum clocking is a technique used in electronics design to intentionally modulate the ideal position of the clock edge such that the resulting signal’s spectrum is “spread”, around the ideal frequency of the clock. In timing circuits, this has the advantage of reducing Electromagnetic Interference…
For those who are confused: the title is a bit misleading, it's actually the other way people might expect (if you read the thread) Noisy environment: turn the fans all the way as the user -> more cooling -> processor doesn't throttle Quiet environment: turn the fans down -> processor throttles
Earlier quoted context omitted.
> You should read the link before commenting. Twitter doesn’t show threads to people who are not logged in (e.g. if you don’t have an account). Shaming people for not reading what they can’t see (or even know exists) is unfair. Using archival sites doesn’t work as a bypass like on newspaper sites. Not to mention people on Firefox, which from what I have read on HN might not even have access to it at all . Twitter lin…
I had no idea Twitter was doing that. That sucks. However - I find that less onerous than a paywall and HN is mostly fine about those.
With a paywall you know what you’re missing or not. With Twitter that’s harder to determine, which I’d argue is worse. But I wouldn’t say either of our opinions is objectively correct.
> and HN is mostly fine about those.
It is explicitely fine with paywalls which have workarounds.