Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Comment Use measurements to EQ your stereo better (Score 1) 135

Lots of people do equalization, but mostly just by ear. Tools to use SCIENCE to do it are now cheaply available.

1) play music out of your computer with an equalizer. I use Foobar2000. There is a free 31-band stereo equalizer plug in available for it. http://www.foobar2000.org/comp...

2) play some Pink Noise through it. Pink Noise is equal energy per octave, so on a log frequency graph of SPL it should be flat. Of course, it won't be b/c speakers and rooms are imperfect, but now you have a goal. Download a pink noise sample, or make one with something like Audacity. Probably use a non-lossy file format.

3) get a smartphone app with a Real Time Equalizer. iphones have consistent mic performance, so the software can usually correct for it well, but I have had some bits of software behave oddly. I paid a few bucks for this one ( http://www.studiosixdigital.co... ) I understand there are android apps also. You can buy a measurement mic for your phone cheaply ( http://www.parts-express.com/d... ) if you want.

4) The RTA will measure your SPL vs Frequency, and your pink noise sample is sound that should have flat response. So use your equalizer software to twiddle the sliders until things are flat. Microphone location makes a difference!

So if you have a smartphone and a computer this can be done for somewhere between free and $50. Some people are good at equalizing by ear, but bringing some tech to the table will help most people get better results.

Submission + - Police Agencies Using Software to Generate "Threat Scores" of Suspects

Koreantoast writes: It's no secret that governments across the globe have been taking advantage of new technologies to create stronger surveillance systems on citizens. While many have focused on the actions of intelligence agencies, local police departments continue to create more sophisticated systems as well. A recent article highlights one new system deployed by the Fresno, California police department, Intrado's Beware. The system scours police data, public records, social media, and public Internet data to provide a "threat level" of a potential suspect or residency. The software part of a broader trend of military counterinsurgency tools and algorithms being repurposed for civil use. While these tools can help police manage actively dangerous situations, providing valuable intel when responding to calls, the analysis also raises serious civil liberties questions both in privacy (where the data comes from) and accuracy (is the data valid, was the analysis done correctly).

Also worrying are the long term ramifications to such technologies: there has already been some speculation about "citizen scores," could a criminal threat score be something similar? At very least, as Matt Cagle of the ACLU noted, "there needs to be a meaningful debate... there needs to be safeguards and oversight."

Comment Re:Wrong business model (Score 1) 278

This is technology. It'll be cheaper soon. Given how revolutionary the product is and how the zeitgeist has been expecting one for 20 years, it would be corporate incompetence not to pull as much as you could out of the first round of buyers. If it's too expensive for you, have a look again in a year.

Comment Re:Dead on Arrival (Score 1) 174

"I agree. Also, if people will shell out $700 for the iPhone, there will be plenty of buyers for a VR headset."

Ah, here is the central point. Charge what the market will bear! Everyone has been dreaming of working VR for 30 years now. The pent up demand it outrageous. If you hear a price that makes sense, it's too low.

Comment BS alert (Score 1) 157

"By adapting a lean approach to government, the amount of savings that can be realized by improved efficiency will eliminate the need for wholesale changes to foundational policies."

The line which amounts to "We will save so much under my administration that I will give you all this pork for NO COST!" has been used before, and it was bullshit back then.

If you are cynical, you should avoid this line because other cynics (cynical about government? this is a large population) will see your BS clearly. If you actually think you can pull this off then you should recognize that this is not low hanging fruit, it's not easy to do, you should structure your planning to not depend on your ability to do this.

If this is some sort of meta-joke at the expense of politics and campaigns then carry on.

Comment Re:You don't get it, do you? (Score 1) 161

"When you're in public, anyone can recognize you whether it be man or machine. Anyone can take pictures of you and what you are doing. There is no concept of "privacy" when you are in public."

To quote a /. comment I once saw (thanks, "fuzzyfuzzyfungus"), "most of your protection has always been logistical." "Privacy" in public has been available for a long time. Previously impossible actions were never considered, but that doesn't mean they shouldn't be prohibited.

As expanding technological capacity tries to undermine expected privacy don't feel like there is any conceptual mandate to accept it.

Slashdot Top Deals

Machines that have broken down will work perfectly when the repairman arrives.

Working...