Showing posts with label Acoustics. Show all posts
Showing posts with label Acoustics. Show all posts

September 21, 2013

Restoring Hearing Using Bionics



A mother wrote in the Wall Street Journal yesterday about the miracle of Cochlear Implants.

Lydia Denworth described when her 2-year old son, who is deaf, got these implants and how now he is now able to attend 5th grade in a "mainstream school" and is "nearly indistinguishable from the other children."

These implants allow her son, Alex, to have a conversation with another child about the hearing device that "can open up the world of sound and spoken language."

Denworth states at the end of the editorial, "Moments like that make me deeply grateful for the technology."

For me, reading this was an opportunity to go learn about the amazing bionics that has already restored hearing to 320,000 people!

While hearing aids amplify sounds and make them louder, they don't resolve permanent damage to the inner ear. 

A cochlear implant bypasses the damage by receiving sounds in a microphone, digitizing them, and converting them to electrical impulses that are sent directly via implant to the auditory nerves-- bypassing damaged or missing sensory cells in the ear--in a way that the brain can understand.

I am in awe of the inventors--Graeme Clark, Ingeborg Hochmair, and Blake Wilson--who are being recognized for their pioneering research leading to the development of Cochlear Implants.

Hopefully, soon we can do for sight, smell, taste, and touch what we can do for hearing and restore the impaired to fully functioning again.

We are living in a time of great miracles--thank you G-d!

(Source Photo: here with attribution to Bjorn Knetsch)
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August 10, 2008

Man-Machine Interface and Enterprise Architecture

A critical component of User-centric Enterprise Architecture is designing technology solutions to meet end-user requirements, and this includes making the man-machine interface simple and user-friendly. Often, this is referred to as ergonomics, defined as “the applied science of equipment design intended to maximize productivity by reducing operator fatigue, safety and discomfort. “ (www.spyderco.com/edge-u-cation/glossary.php)

According to Federal Computer Week, 4 August 2008, “Air Force researchers aim to help pilots and others operate increasingly complex aircraft and mission support systems.”

Unfortunately, all too often, the man-machine interface is not dealt with up front. “Traditionally, the machine and the technology are designed first and then the pilot has to deal with what’s left over, usually through training,” says Maris Vikmanis of the Air Force Research Laboratory.

Not designing in ergonomics from the get-go is a failure to consider the human capital perspective of enterprise architecture and will result in technology solutions that are sub-optimal to the end users and to the performance of the mission.

Dan Goodard, chief of the directorate’s Warfighter Interface Division, states, “There’s now so much reconnaissance data flowing down into the AOC (Air Operations Center) that it’s information overload. You need a much better human-machine interface to be able to get actionable information out of this very quickly.

One example of enhancing man-machine interface is “deciding the best interface for people to use with onscreen data. A regular mouse turns out not to be so good for this; it would be better if someone could actually reach into the data to interact with it, which means devising more tangible interfaces.” (Remember the movie Minority Report…) I do not know if this type of 3-D data interface even has a name yet, but I would call it something like virtual data manipulation (VDM).

Another example goes beyond the senses of sight and touch to that of hearing. “Sound perception can play an equally important role in combat scenarios. On the battlefield, people often pick up aural cues about what’s happening before they see it. Developing technology that can take advantage of that is the goal of Battlespace Acoustics Branch of the Warfighter Interface Division.”

We’ve got to change from the “build it and they will come” mindset of the failed dot.com era to a more User-centric EA approach that demands that we design IT with the end-user in mind.

As Goodard summed up, “there’s been a lack of awareness about the importance of the man-machine interface in the early designs of weapons systems.” It’s certainly time to change that and not only for military and law enforcement systems, but for IT across the board.


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