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Engineers test sign language on cell phones

We all know what it's like to send a text message or e-mail whose tone is completely misinterpreted. A series of additional messages to better explain ourselves ensues and the efficiency of the original message is long gone.

That's one reason engineers at the University of Washington are testing a tool called MobileASL that uses motion detection to identify American Sign Language and transmit images over U.S. cell networks. Sometimes, words alone just don't cut it.

"Sometimes with texting, people will be confused about what it really means," says Tong Song, a Chinese national who is studying at Gallaudet University, a school for the deaf in Washington, D.C., and participating in UW's summer pilot test. "With the MobileASL, phone people can see each other eye to eye, face to face, and really have better understanding."

Eve Riskin, a UW professor of electrical engineering, says the MobileASL team's study of 11 students is the first to examine how deaf and hearing-impaired people in the U.S. use mobile video phones. The researchers plan to launch a larger field study this winter.

The engineers are now working to optimize compressed video signals for sign language, increasing the quality of the images around the face and hands to reduce the data rate to 30 kilobytes per second. To minimize the amount of battery power, the phones employ motion sensors to determine whether sign language is being used.… Read more

'American Idol' dumps Sony, aligns with UMG

"American Idol," the juggernaut talent show that has dominated TV ratings the past nine seasons, has signed a new distribution and marketing deal with Universal Music Group, the largest of the top four record companies.

Yes, this story isn't exactly technology-centric, but the partnership between UMG and Simon Fuller, the creator of "American Idol," could impact download sales for two of the four biggest major recording companies.

The show, to date, has sold more than 120 million iTunes downloads and has helped launch the careers of such music stars as Kelly Clarkson, Carrie Underwood, and … Read more

The 404 634: Where Michael Showalter... (podcast)

We had a longer show title in mind when we asked Michael to help us think of ideas this morning, but who are we to argue with greatness? The comedian behind "The State," "Wet Hot American Summer," Stella, "The Baxter," and more joins us in the studio to chat about his new "Making of..." Web series on Babelgum. He also reveals news about the forthcoming musical based on "Wet Hot American Summer" and tells us about the next evolution of "The Michael Showalter Showalter." Strangely enough, we also … Read more

Why Web host shut down 73,000 blogs a mystery

Note: For more recent news on this issue, read "Web host to return Blogetery's blogs."

Blogetery.com, a little-known WordPress platform used by more than 70,000 blogs, was shut down by its Web hosting company more than a week ago and nobody seems willing to say why or who is responsible.

BurstNet, the Web-hosting company, informed Blogetery's operator that service was terminated at the request of some law enforcement agency but wouldn't say which one. As for the reason, BurstNet hasn't made that clear either. In an e-mail to Blogetery's operator, BurstNet … Read more

A speaker so good it doesn't sound like a speaker

I've probably listened to and reviewed a thousand speakers, and truth be told, the majority of them never sound like live music. They sound like speakers.

The "problem" with box speakers is that you're always aware the sound is coming out of a box, but Magnepan speakers don't have a box. And they don't have dome tweeters or cone midrange or woofer drivers, either. Magnepan technology is radically different than what you find on box speakers, so the 1.7's sound "floats" free of the speakers themselves.

The new Magnepan 1.7 ($1,995 per pair) looks a lot like the model it replaces, the 1.6, which was regarded by many of the world's high-end audio critics, including me, as one of the greatest less-than-$2,000 speakers on the market. The 1.6 stayed in the line for more than 10 years, and I have every reason to believe the 1.7 will be a standard bearer for just as long. And speaking of value, Magnepan also offers a factory-direct $599 (per pair) panel speaker, the MMG. The technology isn't as advanced as the 1.7's, but it's miles ahead of any other $599 speaker I can think of.

The 1.7 panel is 64.5 inches high, 19.25 wide, and just 2 inches thick. Magnepan builds all of its speakers in White Bear Lake, Minn., and almost all the 1.7's parts that aren't fabricated in-house are sourced from U.S. suppliers. I reviewed the 1.7 for Tone Audio magazine, where you can read the complete review.

The 1.7's technology is unprecedented for Magnepan; the speaker is the company's first "full-range ribbon" design. It's also worth noting that what makes a well setup pair of 1.7s so special isn't just something that only dyed-in-the-wool audiophiles would notice; pretty much anyone with ears will immediately grasp what's going on. Their box-free sound is astonishing.… Read more

A speaker designer speaks out

Speaker designers are fascinating people, and each one has his or her own unique perspective and priorities. Some are "pure" engineers, and spend most of their working life in front of a computer; others test and measure their designs, but invest countless hours listening to prototypes.

I recently interviewed Dave Wilson, founder and chief engineer for Wilson Audio Specialties for The Absolute Audiophile magazine. Wilson Audio is the high-end audio equivalent of Ferrari; the Provo, Utah,-based company makes ultra-high-performance speakers for the most demanding audiophiles and music industry professionals. Warner Brothers, Pixar, Disney, and CBS/Sony are all Wilson customers.

Q: The greatest challenge is making highly accurate speakers that still sound good with less-than-stellar recordings. Accuracy can't be the only design goal. Wilson: Right, it's like designing a car for sports car enthusiasts, and developing it entirely on a smooth racetrack. You find that if you take out all of the suspension compliance, the car performs better and lap times go way down, so it's great on the track, but it will be hell to drive on a real road. [In audio] a lot of people use "accuracy" as a pejorative, meaning the sound is bright, forward, or lean in the lower midrange; so it emphasizes high-frequency detail at the expense of the music's body and soul.

So the art of speaker design is all about preserving accuracy without losing musicality. Wilson: The speaker needs enough resilience and latitude to sound great with all types of music. As our designs have improved over the years they have become more tolerant of imperfect recordings. It should just sound right.

That's exactly what I thought when I heard your new speaker, the Sasha. It's highly resolved and it's still very easy to listen to. Your designs of the last few years have more curves and fewer hard edges than before; do I see a Ferrari influence in the Wilson aesthetic?… Read more

Michigan takes first place at the 2010 American Solar Challenge

For the sixth time, the University of Michigan Solar Car Team won the 2010 American Solar Challenge, a long-distance road rally across the U.S in a car powered only by the sun.

Seventeen teams took part in the 1,200-mile race, which alternates years with the Global Green Challenge (formerly the World Solar Challenge) held in Australia. The North American race began in Tulsa, Okla., on June 20 and ended six days later in Naperville, Ill.

The University of Michigan's Infinium solar car was an obvious front runner. With five wins under their belt and boasting a top speed of more than 100 mph, … Read more

UM solar car tops out at 105 mph

The 2010 American Solar Challenge isn't until next week, but records may have already been broken. In testing, the University of Michigan Solar Car Team's Infinium clocked speeds of more than 100 mph for 30 seconds at Ford Motor Co.'s Michigan Proving Ground, achieving a top speed of 105 mph.

"No one we have spoken to has ever heard of a solar car reaching 100 mph, and a U-M car has never reached it," said Rachel Kramer, the team's project manager. "Our goal for the 2010 American Solar Challenge is to win Michigan'… Read more

The top 10 greatest speakers

I've been an audiophile for more than 30 years, and from where I stand there's never been a more exciting crop of high-end speakers to choose from. The goal--to make as lifelike a sounding speaker as possible--is exceedingly difficult, but that hasn't stopped a slew of very talented designers from trying. This top-10 list was created without price constraints and is presented in no particular order; the speakers are all exceptional performers (prices listed are for pairs of speakers). They are all currently available models, but I will soon do another top-10 list of the best speakers of the 1950s, '60s, '70s, and '80s.

I did the first "Top 10 greatest audiophile speakers" blog post last year, with a self-imposed price limit of $3,500 per pair (two were under $1,000). Most models are still available, so if you're looking for affordable options, please refer to that list. All of the companies on today's list offer less expensive models.

Hansen Audio Prince V2. This speaker's handsome curves and strong physical presence demands respect--it all but shouts "this is very serious audiophilia"--it's made for those rare souls who would appreciate a world-class speaker small enough to fit in an apartment, with floors strong enough to support the 540-pound weight of a pair of these $39,000 beauties. For my money it's better than Wilson Audio's highly regarded Watt/Puppy speaker.

Naim Ovator S-600. Britain's Naim Audio Ltd. is best known for its amplifiers and CD players, but this new speaker breaks a lot of rules and sounds less like a box speaker than anything on the planet. With super-tight bass, uninhibited dynamic punch, superlative midrange tone, and pure treble, the S-600 is a strong contender on a number of fronts. At $10,450 it's priced near the low-end for today's state-of-the-art speakers. Review to come.

Anthony Gallo Acoustics Reference 3.5. A radical update of the Gallo Reference 3.1, with new drivers; the small, 35-inch tall floor-standing speaker projects a huge soundstage. The cast aluminum and stainless steel design feels remarkably solid. Sonically, the Reference 3.5 has the ease and poise of a much larger and more expensive speaker. At $6,000 the Reference 3.5 is the most affordable speaker on this list and offers more than a glimpse of state-of-the-art audio. Sounds great with low-power amplifiers; review to come.

B & W 802 D. Another English contender, and this one's loaded with interesting design tricks, including a synthetic diamond tweeter. The form-follows-function design is drop-dead gorgeous. B & W's top models are favored by audiophiles and recording studios. $15,000.

Wilson Audio MAXX Series 3. More than any other company Wilson Audio dominates the upper-end speaker market. Its held that position for more than 25 years, and now with this 5-foot, 7-inch-tall, 425-pound bad boy, there's no sign that reign will end anytime soon. So sure, the MAXX 3 is brute-force powerful, capable of producing "live" sound volume, in the largest rooms or mansions. That said, the MAXX 3 also plays quiet music with beguiling refinement. It's what any demanding (and wealthy) audiophile would expect a $68,000 speaker to sound like. BTW, the MAXX 3 isn't Wilson's most expensive speaker, not by a long shot. … Read more

What happened to the Vitality Sensor?

A few weeks ago, Nintendo developed a partnership with the American Heart Association. The Wii Fit is one of Nintendo's most successful product/game combinations ever. All new Wiis are now packaged with Wii Sports Resort and Wii MotionPlus, along with an approval stamp from the AHA.

It seemed like the stage was perfectly set to trot back out with the Vitality Sensor Satoru Iwata unveiled at last year's E3 press conference.

So, what happened?

Instead of fitness, motion, and heart health, Nintendo's presser was full of retro games and the 3DS. We're not complaining; far … Read more