Slashdot Mirror


User: HonIsCool

HonIsCool's activity in the archive.

Stories
0
Comments
168
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 168

  1. Re:The title is wrong. 4K != UHD on Lucasfilm Creates A 4K Ultra-HD Restoration of the Original 'Star Wars' (4k.com) · · Score: 1

    The original was shot in Panavision 35mm, not 70mm (except maybe FX shots?) Film doesn't have a "resolution" as per digital, but it's certainly not "infinite bandwidth". Resolving power depends on the emulsion speed, exposure and processing. A 4K scan is in all likelihood a perfectly safe capture of all details in a 40 year old 35mm negative. Although for newer stocks like Vision3 and what not, 6K or even 8K might be prudent in order to be certain to get all the detail.

    But since you also mention film projectors, the above is about the negative and obviously one rarely projects a negative in the cinema. After going through the dupes necessary, a projected mint 35mm film would probably be closer to a digital 2K projection.

  2. Re:gravity waves on Big Bang's Smoking Gun Found · · Score: 5, Informative

    Gravitational waves are a prediction of general relativity and not related to gravitons (assuming that's what you meant) that are theorized to be the carrier of gravity in quantum gravity theories.

  3. Re:No programmer required. No machine required. on Mathematician: Is Our Universe a Simulation? · · Score: 1
  4. Re:steve albini here on Why Steve Albini Still Prefers Analog Tape · · Score: 1

    Someone forward thinking (obviously not you) will make a cloud storage for digital masters [...]

    Cloud storage, eh? That sounds like a super-reliable storage solution, hehehe!

  5. Re:Old fart can't let go of his superstitions on Why Steve Albini Still Prefers Analog Tape · · Score: 1

    I'm fairly sure that Albini hangs on to his analog tapes for sentimental reasons, but you misunderstand one point: he says he prefers to give a band a tape as a master for safety reasons. That means a physical copy that can reasonably ensure the band that down the line they will still have their music. The volatility of a digital file is probably not because he thinks people will forget how to read PCM audio, but simply because the file will easily be lost.

  6. Re: how can you not play an audio file? on Why Steve Albini Still Prefers Analog Tape · · Score: 1

    I'd like to see the frequency response graph of a "properly aligned Studer" up to 80kHz. Response curves in the audible band: http://www.endino.com/graphs/

  7. Re:No Analog is not better... on Why Steve Albini Still Prefers Analog Tape · · Score: 1

    Well, what you wrote is based on ignorance of signal processing (don't worry, I'm at best a dilettante myself!)

    The basic waveform is, per Fourier analysis, a sine wave. Any other waveform is composed of a fundamental sine wave plus higher frequency sine waves. A perfect square wave requires composition of an infinite number of sine waves, and hence also requires an infinite bandwidth and as such is not physically realizable!

    When human hearing is stated as being capable of recognizing frequencies up to 20kHz, the waveform is implicitly a sine wave. It's not possible to hear a 20kHz square wave, because what makes it a square wave is the addition of higher frequency sine waves which are inaudible.

    Nyquist's sampling theorem, on which digital audio is based, states that to perfectly reconstruct a band-limited signal, the sampling frequency must be at least twice the highest frequency component[*] of the signal. That means that to capture a 20kHz band-limited signal, it is necessary that the sampling frequency be above 40kHz, but if this is fullfilled, a 20kHz sine wave can be perfectly reconstructed! However, a 20kHz square wave _cannot_ be captured without aliasing because of the higher frequency sine waves present, it is in fact not band-limited to 20kHz!

    [*] Actually the Nyquist theorem really states that the sampling frequency must be at least twice the bandwidth of the signal. It's possible to perfectly sample a single 20Khz sine wave with a much, much lower sampling frequency, but the signal will be folded down, which is not actually destructive as long as there aren't other frequency components interfering. This form is known as "undersampling" and is used in some radio receivers to down-convert the signal.

  8. Re: A great win for FreeBSD on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 2

    Why would you expect no references to FreeBSD, if they are using it? The license requires them to put such references.

  9. Re:lost me on Doom 3 Source Code: Beautiful · · Score: 1

    Please explain how "const can fuck you hard in OOP".

  10. Re:Damage on Tolkien Estate Sues Over Lord of the Rings Slot Machines · · Score: 1

    I actually doubt JRR Tolkien would disagree with what the estate does...

  11. Re:I had to laugh on Tolkien Estate Sues Over Lord of the Rings Slot Machines · · Score: 1

    I agree with your opinion on Jackson's films, but the deal with the films were actually struck with Tolkien himself who, as I recall from Letters, saw two paths to making films out of the books: artistic integrity...or money. And he decided to go with the money. This produced the bad cartoon film (which strangely enough I actually recall more fondly than the Jackson's films but I think that might just be my rose-tinted spectacles.)

  12. Re:IPv6 support on Bug Busters! OpenBSD 5.1 Released · · Score: 1

    Packages are not part of the base system, so it's not so strange that the documentation doesn't refer to the wide-dhcpv6. I have checked now and it was indeed wide I was using. But I have actually disabled it now and using ipv6 autoconf instead.

  13. Re:IPv6 support on Bug Busters! OpenBSD 5.1 Released · · Score: 1

    It appears the FreeBSD packet filter is actually a port of OpenBSD's PF. If nothing's changed, OpenBSD's PF is single-threaded, so if all the box is going to do is to filter packets, more cores won't improve things. I don't know if FreeBSD have threaded their port, or otherwise made performance improvements.

  14. Re:IPv6 support on Bug Busters! OpenBSD 5.1 Released · · Score: 1

    I think a DHCP6 client/server might not be included on the same level as DHCP4, but there absolutely is an option to install a working one, since I'm indeed using it. A quick scan shows the "wide-dhcp6" in packages, but I'm not quite sure if this is the one. I can check later when I get home if you want?

  15. Re:IPv6 support on Bug Busters! OpenBSD 5.1 Released · · Score: 1

    What I meant was that I set up an IPv6 over IPv4 tunnel on my openbsd box which then acts as a IPv6 router for my LAN. IPv6 packets are routed to and subjected to the OpenBSD firewall just like IPv4 packets. I also have DHCPv6-server running to deal with computers on the LAN getting proper IPv6 addresses. In other words, my setup sounds pretty similar to what you are asking about. If my ISP offered native IPv6, that would actually simplify things as it would mean one less step as I wouldn't need the tunnel anymore.

  16. Re:IPv6 support on Bug Busters! OpenBSD 5.1 Released · · Score: 1

    OpenBSD does include a DHCP6 package (or maybe it's in ports, I honestly don't remember, but anyway, it works). PF does support IPv6 filters, exactly the same as IPv4 as far as I can discern. As for routing protocols, I have no experience with them, but OpenBGPD does appear to support IPv6.

  17. Re:IPv6 support on Bug Busters! OpenBSD 5.1 Released · · Score: 1

    I have run OpenBSD as my firewall since forever, and have since set up a tunnel to give my LAN IPv6 connectivity. There has been absolutely no problem with IPv6 at all in OpenBSD[*]. Every application I've messed with, from packet filter to tunneling to DHCP to nameserver supports it. Granted my usage is probably very limited still, but my impression is that IPv6 is supported pretty much everywhere that IPv4 is. I can't say how this compares with FreeBSD though, because my experience with it is restricted to a brief laptop install circa 1998 (although, I was briefly considering installing it on a desktop machine this weekend actually!)

    [*] Well, actually, one of the remote holes in the default install actually was in the IPv6 implementation, but that was before I set up my tunnel fortunately!

  18. Re:LOL! on Tapeheads and the Quiet Return of VHS · · Score: 1

    I just tried this, and, except for volume, I can't really say I hear a difference.
    What sample rate did you synthesize to and what sample rate is your playback path capable of?
    Synthesizing to eg 44.1kHz produces very noticeable low-frequency components.
    Are you sure you are not listening to such alias artifacts?

  19. Re:The punchline on Japan's Richest Man Outlines Renewable Energy Plan · · Score: 1

    This guy already donated 10 billion yen (~120 million dollars) of his personal money to quake relief as well as all of his earnings until retirement [1]. Perhaps making money is not all that he cares about?

    [1] http://guyjin.me/2011/04/04/softbank-ceo-masayoshi-son-donates-usd120-million-to-earthquake-and-tsunami-relief-efforts

  20. Re:Jerry Pournelle's *uninformed* view of Fukushim on Robots Enter Fukushima Reactor Building · · Score: 1

    You are trying to shift the burden of blame onto me, for some reason, without accepting that you made a mistake, deliberate or not. Sadly, that you won't acknowledge what you did and instead try to blame me for pointing it out makes me think the deception was deliberate. See, you are not contradicting my claim that the report denied your assertion that it was radiation/cancer that decimated the population of Belarus, Russia, and Ukraine, instead you are trying to divert the argument to other parts of the report. But let's review the problematic original statement:

    There are debates about "extra" cancer cases caused by nuclear power, but I know of no proof that there have been any.

    The claim can be made for two reasons. [snip first reason] However the UNICEF report "Human consequences of the Chernobyl nuclear accident" summarised it neatly;

    "Life expectancy for men in Belarus, Russia and Ukraine, for example, is some ten years less that Sri Lanka, which is one of the twenty poorest countries in the world and is in the middle of a long drawn out war"

    Maybe Pournelle is just to lazy to look and since cancer takes years to gestate I think it's premature to understand the damage done to the Japanese populace by Fukushima.

    It is a perfectly obvious implication that you are here representing the report as saying that the low life expectancy is due to cancer contracted by radiation from the Chernobyl power plant accident. Talking about the cancer effects, not only on the population of the Fukushima prefecture and neighbours, but on the population of the whole of Japan, certainly underscores this implication. (And I'm sad that "Fukushima" will inevitably come to mean the nuclear power plant accident rather than the beautiful prefecture that was hitherto famous for its tasty rice...)

    But as I showed, the report does not support this implication! But instead of showing that my correction is somehow wrong, you are now arguing that the details, such as what the cause really is, don't matter because the situation as described in the report is pretty darn horrific at any rate, and who can argue with that?

    But the details do in fact matter very, very much!

    I will take the time to clarify exactly why and my reasons for taking offense at what you did. I will do this entirely for your benefit even though I feel I have no obligation to reveal personal information and background, merely for objecting that the facts didn't support your statement. Nevertheless...

    I have family living in a town called Minamisoma about 30km north of the Fukushima #1 power plant, right on the border of the evacuation zone. Unlike most people posting here about the accident, I have driven past that nuclear power station many times on the way to Tokyo (where in fact all the electricity generated by the plant also went, but I digress...)

    There has been a lot of misinformation spread through-out this catastrophe, misinformation (to not call it straight out fear-mongering!) that can cause a lot of anxiety for people who are affected by the accident (cf. your own point about the psychological effects of Chernobyl!) Saying that radiation has induced cancer that's killing the population enough to drastically lower the life expectancy in a huge area caused me personal scare, for obvious reasons, and when I found out that it was, in effect, a lie[*], I felt it very necessary to point out that out, not the least for the sake of others who might be equally unduly worried by your statement, and especially since you didn't provide a direct link to the report so that they could quickly check for themselves.

    ([*] I'm sure you will take offense at this, and say that it makes no differences whether it was indirect effects, such as psychological or economical, rather than direct effects of radiation, but trust me, it makes a big fucking difference to the people who are personally affected by the Fukushima #1 situation and who are already scared about the effe

  21. Re:Jerry Pournelle's *uninformed* view of Fukushim on Robots Enter Fukushima Reactor Building · · Score: 1

    I am not claiming to be doing any deep analysis; I am merely criticising your use of the report.

    Also, claiming that I am characterising the report as being all about lifestyle factors is a strawman. The report is not all about that, but what is important here is that your quote was indeed all about that! If you wished to make a point about radiation, you should have chosen a more appropriate quote. You did not. That is your fault, not mine.

  22. Re:Jerry Pournelle's *uninformed* view of Fukushim on Robots Enter Fukushima Reactor Building · · Score: 1

    Well, you can try to spin it and say I'm the one who is ignoring things, but it still remains that it was you who made a claim that the effects of the Chernobyl power plant radiation was a devestatingly low life expectancy for the population of multiple affected countries. But the report, despite the bad things it does mention, does not support any such notion; only your selective quoting made it look that way. Which is exactly what I wanted to point out, especially since you didn't provide any reference beond the title of the report, which might well lead others to simply accept your deceptive summary.

    Yes, the report talks about many bad things. But no, these are certainly not all due to the effects of the Chernobyl power plant radiation, especially not the low life expectency, which is clearly identified as being caused by "the combination of poverty, poor diet and living conditions, and lifestyle factors such as tobacco and alcohol use." Trying to imply it's due to radition is dishonest and I will continue to point that out.

  23. Re:Jerry Pournelle's *uninformed* view of Fukushim on Robots Enter Fukushima Reactor Building · · Score: 2

    However the UNICEF report "Human consequences of the Chernobyl nuclear accident" summarised it neatly;

    "Life expectancy for men in Belarus, Russia and Ukraine, for example, is some ten years less that Sri Lanka, which is one of the twenty poorest countries in the world and is in the middle of a long drawn out war"

    Deceptive quoting makes the report seem to imply that the low life expectancy is due to the Chernobyl nuclear power plant accident whereas the report actually says something else:

    "As is true throughout the Former Soviet Union, life expectancy is low not only as compared with Southern and Western Europe, North America and Japan, but also with a number of countries from the developing world. Life expectancy for men in Belarus, Russia and Ukraine, for example, is some ten years less than in Sri Lanka, which is one of the twenty poorest countries in the world and is in the middle of a long drawn out war. Overwhelmingly the most important reason for this is the combination of poverty, poor diet and living conditions, and lifestyle factors such as tobacco and alcohol use. These factors may also, to some degree, be reinforced in the affected areas and communities by the psychosocial effects of the accident. Cardiovascular disease and trauma (accidents and poisonings) are the two most common causes of death followed by cancer (this situation is not confined to the Chernobyl affected regions). Most doctors when asked what measures would most improve the health of the population said improved diet and living conditions."

  24. Re:Damage comparison... on Robots Enter Fukushima Reactor Building · · Score: 1

    Your logic is flawed, but i will try to do so anyway...

    fukushima: official 2 deaths due to radiation.

    Really? Can you provide citation please?

  25. Re:Third blast? on Third Blast At Japan's Fukushima Nuclear Plant · · Score: 1

    Seriously? They're blaming an employee now? Fuckers... I pray the situation can be controlled...