I had genuinely not seen anything saying that high flicker rates have been noticeable, and sorry in the context in this article that is still the case.
The DOE article was quite interesting. So nerves in some circumstances can detect at 200Hz but the brain cannot perceive anything past 120Hz at best and usually an awful lot lower.
Now the reason why I say that in this context it reinforces my opinion that flicker people are idiots is because PWM is usually nowhere near 200Hz which is the best case scenario for even the slightest nerve impulse to pick up. If a piece of gear was say at 80Hz and you saw flicker with just that gear, you throw it out not make a Slashdot article saying PWM is evil. Plenty of more monitors that are built properly. If it is a bad florescent bulb ballast, again throwing it out and getting a good one fixes it.
A simple reference for that? Your lowly Arduino out of the box uses a PWM rate of 490Hz. By your own articles it is impossible to see flicker of any kind with that. Monitors and so on are harder. In Australia fluro bulbs should be going at 120Hz worst case which again is impossible for the brain to perceive.
So if you are sensitive, do more than 5 seconds of research on light producing products and you'll be fine.
(Btw yes I was very deliberate with the 100Hz limit. If 60Hz is invisible to most people you naturally may find some people who can notice it slightly. 100Hz is a good upper limit which those articles agreed with)
Erm wouldn't the logical conclusion be to use a multiple of the refresh rate, not the refresh rate its self? E.g. PWM of 3kHz would do the exact same effect you just described while also maintaining that effect for both PAL and NTSC sources.
Physics. The human eye cannot see hundreds or up to hundreds of thousands of Hz. It just isn't possible therefore the guy is an idiot.
Grab an arduino, hook up a bright led, a pot and make it output via serial what Hz the pot has selected. Then blink the LED at that speed. You can test it yourself.
Its not you are lying. That implies you know you are doing it.
The most sensitive eye can not see anything anywhere near 100Hz. If you have seen PWM less than about 400Hz I'd be extremely surprised and generally it is in the kHz range which if anyone says they can see flicker is bullshitting badly. You simply cannot buy PWM controllers which go low enough - pretty much all generate their own clock btw since precision isn't required.
Remember audiophiles say that good expensive cable sounds better when they are listening to coat hangers. Same thing.
Bit odd. I know for a fact KDE has brightness control included.
My Dell also has a hardware brightness key combination. FN + Up or Down arrows. The awesome thing is KDE knows when I use the hardware keys. Perfect example of not shoving propriety crap in to a laptop.
My desktop monitors are insane at 100% brightness. Great for reading it from 100 meters I suppose but from 2 feet it can be painful. Hell even this mostly white slashdot page at 75% brightness is slightly uncomfortable.
Usually they record in a loop. Say they have space for 2 hours of video. They record continuously, run out of space and then start overwriting the oldest data. If you have an accident you stop it and you instantly have the relevant footage from before the accident plus the aftermath after the accident.
With peering to ISPs it isn't about equal traffic in both directions, that is more when Tier 1 companies peer.
ISPs usually peer because it is cheaper and/or faster than paying to send the same traffic over the regular internet. Over here in Australia most ISPs peer with PIPE. PIPE does not provide any internet access, just traffic between peers. The ISPs consequently get nearly free data from Google, Akamai, etc... just by setting up the one peering connection which is unlimited.
Alpha channel video sounds fun. As does depth channel video. I don't have a clue what people will do with it, but both are very very cool features that make it not yet another video codec.
And what is more offensive is that they aren't even denying spying on all the US's allies.
As an Aussie, Obama didn't say anything to try and make us feel better. In fact he confirmed everything that we didn't want to be true. A requirement of 51% 'foreignness'? I will always show up as 100% foreign.
Slashdot Mirror
'National security' being thrown about to cover up incompetence? Tell me it ain't so!
Yep and the Boston bombings never occurred due to these excellent programs.
There is no such thing as a national security issue. Only 'we don't want to tell anyone about this and look stupid' issues.
Can't be building them very well if you are PWMing around 100Hz.
Try 400Hz - 15kHz and you products might work better.
I had genuinely not seen anything saying that high flicker rates have been noticeable, and sorry in the context in this article that is still the case.
The DOE article was quite interesting. So nerves in some circumstances can detect at 200Hz but the brain cannot perceive anything past 120Hz at best and usually an awful lot lower.
Now the reason why I say that in this context it reinforces my opinion that flicker people are idiots is because PWM is usually nowhere near 200Hz which is the best case scenario for even the slightest nerve impulse to pick up.
If a piece of gear was say at 80Hz and you saw flicker with just that gear, you throw it out not make a Slashdot article saying PWM is evil.
Plenty of more monitors that are built properly. If it is a bad florescent bulb ballast, again throwing it out and getting a good one fixes it.
A simple reference for that? Your lowly Arduino out of the box uses a PWM rate of 490Hz. By your own articles it is impossible to see flicker of any kind with that.
Monitors and so on are harder. In Australia fluro bulbs should be going at 120Hz worst case which again is impossible for the brain to perceive.
So if you are sensitive, do more than 5 seconds of research on light producing products and you'll be fine.
(Btw yes I was very deliberate with the 100Hz limit. If 60Hz is invisible to most people you naturally may find some people who can notice it slightly. 100Hz is a good upper limit which those articles agreed with)
Ah so the NSA is merely monitoring the whole world's communications. Got it.
Got a citation of a double blind study showing someone detecting anything over 100Hz?
Cause without that, we know nothing of the sort.
Erm wouldn't the logical conclusion be to use a multiple of the refresh rate, not the refresh rate its self?
E.g. PWM of 3kHz would do the exact same effect you just described while also maintaining that effect for both PAL and NTSC sources.
Physics. The human eye cannot see hundreds or up to hundreds of thousands of Hz.
It just isn't possible therefore the guy is an idiot.
Grab an arduino, hook up a bright led, a pot and make it output via serial what Hz the pot has selected.
Then blink the LED at that speed. You can test it yourself.
Its not you are lying. That implies you know you are doing it.
The most sensitive eye can not see anything anywhere near 100Hz.
If you have seen PWM less than about 400Hz I'd be extremely surprised and generally it is in the kHz range which if anyone says they can see flicker is bullshitting badly.
You simply cannot buy PWM controllers which go low enough - pretty much all generate their own clock btw since precision isn't required.
Remember audiophiles say that good expensive cable sounds better when they are listening to coat hangers. Same thing.
Bit odd. I know for a fact KDE has brightness control included.
My Dell also has a hardware brightness key combination. FN + Up or Down arrows.
The awesome thing is KDE knows when I use the hardware keys. Perfect example of not shoving propriety crap in to a laptop.
Laptops have fairly wimpy backlights.
My desktop monitors are insane at 100% brightness. Great for reading it from 100 meters I suppose but from 2 feet it can be painful.
Hell even this mostly white slashdot page at 75% brightness is slightly uncomfortable.
If everyone had it then there would be more than 1 black box. Usually a minimum of two and sometimes a lot more.
Usually they record in a loop. Say they have space for 2 hours of video. They record continuously, run out of space and then start overwriting the oldest data.
If you have an accident you stop it and you instantly have the relevant footage from before the accident plus the aftermath after the accident.
Hit pause. It will do what you just described then.
You don't usually get to see how far it has buffered however. Youtube does show you by a gray bar.
With peering to ISPs it isn't about equal traffic in both directions, that is more when Tier 1 companies peer.
ISPs usually peer because it is cheaper and/or faster than paying to send the same traffic over the regular internet.
Over here in Australia most ISPs peer with PIPE. PIPE does not provide any internet access, just traffic between peers.
The ISPs consequently get nearly free data from Google, Akamai, etc... just by setting up the one peering connection which is unlimited.
Erm yes they did pay it for everyone. For the MPEG LA patent pool at least.
http://tech.slashdot.org/story/13/03/07/2242203/google-and-mpeg-la-reach-vp8-patent-agreement
"allowing the company to sublicense the described techniques it to any VP8 user on a royalty-free basis"
Erm Google paid the fee SO YOU DON'T HAVE TO.
They didn't pay just for themselves.
Alpha channel video sounds fun. As does depth channel video.
I don't have a clue what people will do with it, but both are very very cool features that make it not yet another video codec.
Got a citation for VP9 not being better or equal to h.265?
I'm genuinely curious why you think that way.
GCHQ has access to the NSA's data. It would make sense that the NSA would have access to GCHQ's data.
Or a dirt cheap web cam. Either way works.
Not really 'ignorant bullshit'. Yes they are still making a profit and I never said anything to counter that.
However I was referring to the fact desktop sales are down by 5.4% from 2012 and laptops are down 12.1%.
Source: http://www.channelregister.co.uk/2013/06/12/windows_81_to_give_pc_sales_a_shot_in_arm_nah/
Because no one wants to buy a computer with Windows 8 on it.
So Microsoft is losing the console wars and has nothing left to fall back to any more.
And what is more offensive is that they aren't even denying spying on all the US's allies.
As an Aussie, Obama didn't say anything to try and make us feel better. In fact he confirmed everything that we didn't want to be true.
A requirement of 51% 'foreignness'? I will always show up as 100% foreign.
Where can I find this patch? I love having the best speed possible on my servers so I'll definitely apply this one asap.