Forensic Education: Upcoming Audio Forensics Workshop

I would like to pass along the following announcement:

The National Center for Media Forensics at the University of Colorado Denver will be holding an Audio Forensics Workshop December 13-15, 2010 in Denver, CO.  This course is an introduction to digital audio, acoustics, audio evidence admissibility, and recorded speech enhancement.  It is the perfect experience for those new to the field, practitioners needing to review forensic audio theory and practice, or those accustomed to working with other types of digital and multimedia evidence.  Course topics include:

·       Introduction to Media Forensics

-        Overview and principles in Media Forensics

-        Admissibility of audio evidence

 

·       Foundations for Forensic Audio Enhancement

-        Sound and acoustics

-        Audio recording and playback

-        Digitization of sound

-        Signal processing and enhancement algorithms

·       Demonstration and Practice

-        Digital evidence seizure and acquisition

-        Enhancement practice

-        Notes and report writing

-        Preparation of enhanced material

 

The course will be co-taught by Dr. Catalin Grigoras and Jeff M. Smith.  The cost for this class is $850 and graduate level university credit will be given upon completion.  

Human Visual System: Gene identified that causes short sightedness

The BBC (center-left news, United Kingdom) reports on research at King's College London that has tentatively identified a gene that causes myopia, commonly known as short-sightedness.  For those who confuse short and long sightedness, just remember that they are what their names say - you see objects better at short distances when short-sighted and you see objects better at long distances when long-sighted.  The article is well written and has graphics to explain the condition.

Human Speech System: Woman's migraine causes French accent

A woman in the United Kingdom is suffering from Foreign Accent Syndrome - a rare condition caused by damage to the brain that results in changes to a person's accent. In this case, the woman went from a British accent to a French one.  The Guardian (UK, left-wing newspaper) has the story.  Fascinating.

Image Forensics: Bad "Photoshopped" Mad Men cover on Rolling Stones

The title of this post says it all - the writers at Jezebel (a celebrity news for women) wrote about it first. See for yourself.
Enjoy!

Linguistics: Challenge Puzzles

Here is a fun website with lots of puzzles - from easy to hard - involving linguistics.  Enjoy!

(Hat Tip: SiliconValley.com, USA, technology news)

Human Speech System: Test your lip-reading ability

Speech scientists have long known that seeing individuals can, even unconsciously, use lip-reading to assist in decoding words spoken in a conversation. (Note: lip-reading words spoken randomly, without context, is very difficult).  This entertaining and challenging puzzle (link to a Wired on-line article entitled A Classic Back-to-School Lip-Reading Puzzle) will test whether you can match a given list of names to faces in an illustration by lip-reading, given the context that each boy in the illustration is on the verge of pronouncing his name.

Enjoy!

Admin: Apologies and "make up" for light posting

Hi, All.
It has been a very hectic summer for me (again), but I'm back to blogging (finally).

I offer the following website and comic as a sort of "make up" for my delinquency.

Enjoy!
Keith

(Hat tip to EE Life)

Science Education: The Listen Project

My local newspaper (Charleston's Post and Courier) had a blurb in the comics section this week that mentioned a good resource for kids (at heart) to learn about audio. It is the Listen Project and can be found on the Exploratorium's website.  It seems to live up to its tag line of "Explore the art and science of listening".  I highly recommend it.

To give credit where credit is due - the project is funded by the National Science Foundation, the Gordon and Betty Moore Foundation, The Bernard Osher Foundation, and the National Endowment for the Arts.

Enjoy!

Science Education: Summer Science Programs in Forensics

The South Carolina Governor's School for Science and Mathematics (USA) runs its Summer Science Programs (SSP) every summer. SSP is a residential summer camp for rising 8th, 9th and 10th graders. Both in-state and out-of-state students are accepted.


I'll be teaching two, one-week runnings of my course, A Mathematical Tour of Forensic Science, again this year.  In addition, Dr. Sid Parrish will be teaching his ever popular CSI (Crime Scene Investigation) course.  For those who, for some unimaginable reason, might want to take courses in subjects unrelated to forensics, there are a large number of offerings (Lego Robotics, Great Experiments in Physics, and more).  If you are interested, you can find out more on their website. I hope to see you there!

Science Education: Popular Science Magazine puts entire archive online for free viewing

As a kid growing up in the USA in the 70's, I spent a lot of time in my local public library reading everything I could get my hands on.  When it came to science and technology magazines, I remember reading every single Popular Mechanics, Popular Science, and Scientific American as soon as it came in. Of course, a lot of what was in Scientific American was written above my academic level, but with each issue I read I got a little further into each article before I was lost- over time I gave myself a pretty good science education that way. (Aside: of course, that was before Scientific American became so politicized, but I can expound upon the politicization of science and science journalism another day...).

This trip down Memory Lane has a pleasant destination - Popular Science Magazine has put its entire archive of back issues - complete with period advertisements- online for free viewing.  The archive is even searchable using Google's technology.  Very cool, in a geeky sort of way (yes, I was a geek before geeks became cool).

Enjoy!

Speech Recognition: Men harder to understand than women

Researchers at Stanford University (USA) and the University of Edinburgh (UK) have tested various automatic speech recognition (ASR) systems and found that in general they have a more difficult time recognizing speech from males than females.  One of the causes mentioned by the researchers was that the men tended to use fillers such as "emm" more often.

I should point out that the tests were conducted using recordings of telephone calls.  This is important because the type of "channel" the audio is being carried over makes a significant difference to a computer-based speech recognition system.

The work was sponsored by the US Office of Naval Research.

For a quick overview of the research, you can read the BBC (center-left news media, UK) article here.

Enjoy!

Human Auditory System: Audiences hate modern classical music because their brains can not cope

I guess there is a scientific reason "modern" classical music sounds so awful to my ear after all!  The Daily Telegraph (center-right newspaper, UK) has the story.

Human Visual System: Caucasians and Asians recognize faces and expressions differently

World Science (an online science news site) summarizes work by researchers at the University of Montreal (Canada) into how Asians and Caucasians differ in recognizing faces and facial expressions.  Eye tracking cameras were used to monitor where the subjects were gazing.  Doctoral candidate and researcher Caroline Blais said that

The study confirmed that Caucasians study the triangle of the eyes and mouth, while Asians focus on the nose..

 In a separate study, she also tested how recognition of facial expressions differed between the two ethnic groups. It turned out that Asians were not as accurate at recognizing emotions that required observing the mouth, such as fear, disgust, and anger.

The two studies were published in the journals Current Biology and PLoS One.

Acoustics: Visualizing whale calls as art

NewScientist (science magazine, UK) has a fascinating set of images from Mark Fischer, who uses artistically manipulated wavelet transforms of the calls of marine mammals to create stunning artwork.
Enjoy!

Science and Math: Another round-up of interesting links

I have been having difficulty finding enough time to write my normal analysis and commentary on the information I have come across. Therefore, in order to not fall any further behind in getting interesting things out to you, I'm going to once again resort to listing the links.

With apologies, here they are:

US Judge rules that computerized voice stress analysis can be used to monitor offenders  (note: I've blogged previously about how detecting stress is NOT the same as detecting a lie)

Mathematicians: An Outer View of an Inner World

NASA Interstellar Boundary Explorer Mission

Forensic Audio overview article

Mysterious spiral lights
(solution: failed Russian missile launch)

Victorian Infographics

Virtual tours you don't want to miss

Saturn at equinox

The secret life of chaos

Enjoy!