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Comment: Re:Depends on the bitrate (Score 2) 749

You can actually practice listening to music, it's something you learn.

Yes, I've noticed that as I've gotten older. Until I was in my late 40's I never cared much about bass, (the instrument, not the frequency range), in most songs. I heard it, but I felt the song would have been pretty much the same without it. Now, I delight in a good bass line - there's a lot going on there that I simply never heard before. I'm also much, much better at picking out the words a vocalist is singing - lyrics are more meaningful now, because I can hear more of what's being said.

I've always loved listening to music; had lots of records and CD's, built and modded my own equipment, did listening comparisons between the same CD pressed in different countries, etc. But in mid-life, the depth of my appreciation for music has grown considerably, and I hear so much more detail in it than I used to.

Comment: Re:Depends on the bitrate (Score 1) 749

ignore the DAC the amp the source and everything... ...except the speaker drivers themselves. even the best in the world are wildly non-linear.

and then there's the air between your ears and the speakers

another non-linearity

Best source? .0001% THD. best amp? .0001% THD. Speakers? 1% THD haha good luck.

There is a fundamental problem with your argument, and that is the failure to take into account the nature and type of the distortion. It's not your fault - you share the misconception with most audio engineers, (who ought to know better), that THD figures correlate well with listening tests.

Quoting from my own comment in an earlier Slashdot story:

"THD measurements are taken as the ratio of the total power of all harmonics to the power of the fundamental, with no weighting of any kind applied. The trouble is, human hearing doesn't respond to harmonic distortions in this linear fashion - our ears find higher order harmonic distortions much more apparent and objectionable. This deficiency was noted by prominent BBC engineers D.E.L. Shorter and Norman Crowhurst in the 40's and 50's, when they proposed weighting harmonics by the square or the cube of the order; but their voices were drowned out by market forces that wanted a simple, flattering figure of merit that made the newer, more powerful pentode-based amps, (with lots of negative feedback), look better on paper than their lower-powered triode predecessors. The market won out over scientific and technical accuracy, (it usually does), and today engineers the world over, ignorant of this history, mistakenly believe that low THD is the gold standard for measuring and defining audio amplifier quality. (For a good technical analysis of distortion and the sound of an amplifier, see Lynn Olson's excellent investigation)."

Yes, speakers are hugely non-linear - but their non-linearity doesn't make distortions earlier in the reproduction chain inaudible, even though those distortions can be several orders of magnitude smaller. And that applies to all earlier distortions, whether they originate in an amplifier, a DAC, the digital encoding, or the recording equipment itself. Also, an amplifier with 1% THD can sound much better than one with 0.001% THD, not because the distortion in the 'poorer' amp sounds good, but because the distortion in the supposedly 'blameless' amplifier sounds bad. Then there are Intermodulation Distortion and Transient Intermodulation Distortion, which are difficult to measure thoroughly and seldom appear in amplifier specs, yet are often audible.

Audio quality isn't nearly as simple as THD figures imply, nor as simplistic as most manufacturers of audio equipment would have you believe.

+ - Dying Veteran blasts Cheney, Bush in 'Last Letter'

Submitted by jenningsthecat
jenningsthecat writes "In a public letter, Iraq war veteran Tomas Young lambastes former US Vice President Dick Cheney and former US president George W. Bush for sending "hundreds of thousands of young men and women to be sacrificed in a senseless war with no more thought than it takes to put out the garbage". Mr. Young further accuses Bush and Cheney of "egregious war crimes" and of "cowardice and selfishness".

Mr. Young, who joined the Army two days after 9/11, was critically wounded in 2004, five days into his first tour of duty in Iraq. He then suffered Anoxic Brain Injury in 2008 as a complication of his earlier injuries. After almost ten years of what sounds like a living hell, Mr. Young is now receiving hospice care in his home while he starves himself to death.

You can read an interview with Tomas Young here"
The Internet

+ - India Likely to Miss Internet Revolution Says Eric Schmidt->

Submitted by hypnosec
hypnosec writes "Eric Schmidt has warned that India may very well miss the Internet revolution completely for the want of proper infrastructure and advancement in technology. Schmidt said he is worried that India is making the same mistake as other companies have made by resting on their “laurels without understanding how quickly technology changes.” By saying this Schmidt was indicating that India lacks in fiber optic connectivity, the connectivity which has been acknowledged as high speed Internet’s future. When asked by Managing Editor of CNBC TV 18, Senthil Chengalvarayan, why was the Internet Revolution side stepping India, he answered that India’s net connectivity has always been weak. There is lack of undersea cables to handle bandwidth, lack of fiber optic cables as well as proper infrastructure in the country."
Link to Original Source
NASA

Political Pressure Pushes NASA Technical Reports Offline 140

Posted by timothy
from the beware-the-trade-federation dept.
Trepidity writes "The extensive NASA Technical Report Archive was just taken offline, following pressure from members of U.S. Congress, worried that Chinese researchers could be reading the reports. U.S. Representative Frank Wolf (R-VA) demanded that 'NASA should immediately take down all publicly available technical data sources until all documents that have not been subjected to export control review have received such a review,' and NASA appears to have complied. Although all reports are in the public domain, there doesn't appear to be a third-party mirror available (some university libraries do have subsets on microfiche)."
Government

+ - Ask Slashdot: Should Nations Have the Right to Kill Enemy Hackers?->

Submitted by
Nerval's Lobster
Nerval's Lobster writes "Cyber-attacks are much in the news lately, thanks to some well-publicized hacks and rising concerns over malware. Many of these attacks are likely backed in some way by governments anxious to seize intellectual property, or simply probe other nations’ IT infrastructure. But do nations actually have a right to fire off a bomb or a clip of ammunition at cyber-attackers, especially if a rival government is backing the latter as part of a larger hostile action? Should a military hacker, bored and exhausted from twelve-hour days of building malware, be regarded in the same way as a soldier with a rifle? Back in 2009, the NATO Cooperative Cyber Defence Centre of Excellence (which also exists under the lengthy acronym NATO CCD COE) commissioned a panel of experts to produce a report on the legal underpinnings of cyber-warfare. NATO CCD COE isn’t funded by NATO, and nor is it a part of that organization’s command-and-control structure—but those experts did issue a nonbinding report (known as “The Tallinn Manual on the International Law Applicable to Cyber Warfare”) exploring the ramifications of cyber-attacks, and what targeted nations can do in response. It's an interesting read, and the experts do suggest that, under circumstances, a nation under cyber-attack can respond to the cyber-attackers with "kinetic force," so long as that force is proportional. Do you agree, Slashdotters? Should nations have the ability to respond to cyber-attacks by taking out the hackers with a special-forces team or a really big bomb?"
Link to Original Source

Comment: Nothing to see here, move along. (Score 1) 108

by jenningsthecat (#43062537) Attached to: Nearly Every NYC Crime Involves Computers, Says Manhattan DA

In an earlier day, I'm sure pretty much the same could have been said of telephones and telephone books, and before that libraries, or even public roads and streets. If it's societal infrastructure and it's used to contact/connect with other people or access information, it's gonna be used A LOT in the commission of crimes.

I'm all for foiling identity thieves and the like, and I realize that cybercrime is a real threat to all of us. However this story should also be recognized as one that serves the best interests of those who are in power and want to remain there, to the point where it might be considered propaganda. Count on it, and others like it, being used as justification for further encroachments on freedom.

Government

+ - What You Can Do About the Phone Unlocking Fiasco->

Submitted by
itwbennett
itwbennett writes "Now that the ridiculous phone unlocking law is a done deal, and we all understand exactly what that means (i.e., 'fines of up to $500,000 and imprisonment of up to five years'), you might be left wondering what can you do about it? Well, you could start by lending your John Hancock to this petition at the White House's 'We The People' platform. It's already over halfway to the number of signatures required to get a response from the executive branch."
Link to Original Source

Comment: Still more concentration of power and control (Score 1) 163

If this technology is realized and becomes cheap, any bets on whether or not it becomes the standard for consumer electronics?

After all, it's the ultimate kill switch. Whether it's government agencies looking to disable citizens' tech devices for whatever spurious 'justification' they make up, or corporations arbitrarily and absolutely enforcing 'planned obsolescence', I predict that very bad things will be done with this if it ever becomes sufficiently cost-effective to be mass-produced.

Comment: Re:Tinfoil Hats? (Score 1) 160

by jenningsthecat (#42658015) Attached to: India Bars ZTE, Huawei, Others From Sensitive Government Projects

... I also really wish someone would show some proof of something close to a security threat in one of these products before the whole world goes crazy about "OMG the Spies!!!" ...There is tons of hardware by these companies available all over the world, and so far (to my knowledge) nobody has ever found any evidence of a back door...

Firmware update, anyone? Or, how about any of several other ways to introduce backdoors and other security holes after the fact, perhaps even using purpose-built hardware 'features' that aren't detectable prior to remote activation?

Note that I'm not specifically China-bashing here - I don't trust Cisco and the like either, and if I was a patriotic Chinese citizen I sure AS HELL wouldn't trust them. Bottom line: governments and corporations spy, because information is power. They WILL attempt to gather information covertly, and will exploit any opportunity to do so.

India is simply being prudent.

+ - Active Whitehouse Petition: Shorten excessive copyright terms.->

Submitted by warrior389
warrior389 writes "We petition the obama administration to:

Shorten excessive copyright terms

Current copyright terms are much longer than necessary for promoting progress. Excessive copyright terms limit the usefulness of the works they cover without leading to the creation of more works.

I ask the government to limit copyright terms to a maximum of 10 years with no exceptions. Compared to current copyright terms 10 years may sound very short, but 10 years is a long time; it may still be too long. I also ask that currently active copyright terms all end within 10 years.

It is not society's duty to reward authors and artists for their creativity or hard work. Copyright should only exist as an incentive. The excessive monopoly terms must end.

Created: Jan 01, 2013
Current Signatures: 2,551
Deadline: January 31st, 2013"

Link to Original Source
Idle

+ - Neanderthal Baby Mama Wanted

Submitted by theodp
theodp writes "'I'm a Neanderthal man, you're a Neanderthal girl, let's make Neanderthal Love, in this Neanderthal world.' Harvard geneticist George Church recently told Der Spiegel he's close to developing the necessary technology to clone a Neanderthal, at which point all he'd need is an "adventurous human woman" to be a surrogate mother for the first Neanderthal baby to be born in 30,000 years. Church is also an advisor to the Google-backed 23andMe, which is the baby of Sergey Brin's wife, Anne Wojcicki. Hey, Google X Lab — are you thinking what I'm thinking?"

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