Monday, May 21, 2012

Well, this should be easy….


 Life and times of an amateur video-maker









It’s been an exciting week. On Friday, a small group of us
launched a campaign to raise awareness of children’s language learning
impairments (RALLI). We’ve
been fortunate to have had considerable help from TeamSpirit, an agency
whose expertise in marketing and advertising has been invaluable. With their
assistance, we’ve set up a YouTube channel, which has kicked off with some
professionally-made video shorts to introduce the campaign. But we don’t have
funds to continue with a lot of expensive professional services, and so our
plan is to post a mix of content on the site, including some videos made by the
RALLI team. We are four academics and a speech-and-language therapist, none of
whom has any expertise in filming, but the TeamSpirit folks were reassuring.
What we needed was a digital flipcam, which would allow us to film ourselves in
high definition video, download to the computer, and upload to YouTube. Easy
peasy. Or so I thought. Before I began this exercise, I was a straightforward
atheist. Now I believe in supernatural forces, but they aren’t benign.


The camera arrived in the post and looked great - same size
as a mobile phone. I studied the manual. There was a battery. There was a slot
labelled ‘battery compartment’. But there was a problem. The battery did not
fit in the battery compartment, whichever way I tried. I grumbled to my PA that
we’d been sent the wrong battery. She discovered a bit of the manual that
explained how to insert the battery - in a quite different place. I left her to
play with the camera while I went off to prepare a lecture, as she was clearly more
suited to this than me. She emailed me to say that the camera worked well, but
there was a snag. It stored exactly 30 seconds of footage. Should you want more
than this, you had to buy a memory card. This is what went in the ‘battery
compartment’. So, my plans for starting filming were foiled.


Onto the Kodak website. Astounded by how much I’d have to
pay for a memory card. Realised I’d also need some kind of tripod to stabilise
the camera when filming myself. Registered on the website, put in an order, tried
to pay with Paypal, password rejected. Having assumed various emails from
Paypal were spam, I was now uncertain as to whether or not my recorded password
was still valid. But I wasn’t going to get a chance anyhow, as my failed
password had somehow aborted the whole operation. Too busy to start again, so
decided I’d take a look in Currys to see if I could buy memory etc.


The Currys option was the only positive thing to happen.
Found a dinky little cushion thing that you could screw your camera into that
cost far less than a tripod and worked as well. Also found that, as I didn’t
plan to record hours of footage, I could buy a small memory card much more
cheaply. So I was ready to go except for one thing. I needed an external
microphone.


We had had a clearout of our lab a few months ago, during
which we’d found a huge cache of microphones. For years we did research on
language disorders that involved making good quality tape-recordings of
children, and we had clip-on microphones, boundary microphones, big
microphones, small microphones, none of which had been used for years. However,
they had all been carefully put away. Somewhere. I thought I was getting close
when I found a box full of headphones, but no. Several boxes later, I gave up. I
wonder if other people have boxes full of cables that connect together things
that you have never used, have no idea what they’re for, but can’t bear to
throw away.


Eventually, a savvy member of my team arrived and located a boundary
microphone, which I took home with me to experiment with over the weekend.
Well, I guess this microphone had once been good, but it had lived in a box for
about 8 years. I assumed that the little round battery in it was now well dead,
but there were a couple of spare batteries still in their original packaging.
Like most contemporary packaging, this  was designed to give you the
impression that if you attack it with fingernails, you might get in, when in
fact this is not the case. The only result is a broken fingernail. What is
needed is scissors, and so I now went on a scissor-hunt. Eventual success,
though why scissors should be in the fruit bowl I do not know.  




No indication as to which way round the battery should go,
and I’d made the mistake of removing the existing one without checking. Tried
new battery one way up. Nothing. But now a problem. The battery sat happily in
the battery hole and did not want to come out. Tried fingernails, tried
prodding with nail-scissors. It wobbled, but it wouldn’t budge. Gave to
husband. He tried fingernails, and tried scissors. Then he had a remarkable
insight. “What we need,” he said, “is a magnet”. This seemed to me no more than
a theoretical speculation of no practical relevance. But he went further, and
demonstrated his true genius in lateral thinking. “We need the little red man.”
The little red man is a fridge magnet that we’d been given for Christmas. Downstairs
to the kitchen again. The red man’s magnetic feet proved to be the perfect size
for extracting little round batteries from microphones. We removed the battery.
We rotated the battery. We reinserted the battery and plugged the microphone
into the flipcam. Made a recording. Couldn’t hear any sound. What we now
needed, clearly, was headphones. Headphone-hunt ensued. Headphones eventually
located in the bedroom. Plugged in. Well, there was sound, but it was very
faint. I tried modifying the controls on the flipcam to improve the gain, but
that had  minimal effect. Here my amateur
knowledge of technology failed me. If it was faint, could it mean that the
battery was running out of juice? Husband thought unlikely but we did have one
more spare battery to try. Another assault on packaging with scissors and we
were in. We had another go with red Pete’s feet, but the new battery didn’t
work at all. At this point it was getting late and husband was impatient to
watch another episode of Breaking Bad (highly recommended: we are on series 3),
so I gave up for the night.


Next morning decided to look in the geological specimen
cabinet to see if I could find an alternative battery. This is an amazing piece
of furniture that we picked up in a country auction about 30 years ago. Its
original function was to store bits of rock, but it is a godsend for a hoarder,
as it allows you to hoard your useless objects in labelled mahogany drawers.
One drawer is called Batteries. The problem is that the batteries that live in
it tend to be very old, but I did find some that were small and round and
labelled as “For use only in NHS hearing aids.” Husband, who has a hearing aid,
denied all knowledge of them. Ever optimistic, I decided to try one in my
microphone, feeling ever-so-slightly wicked at disobeying the stern injunction
on the packet. The battery fitted in the microphone slot very snugly. I tried
recording. I got a signal, but it was even weaker than before. Oh well, I
thought, maybe I should just buy a new battery. But then I had a problem. The
snugly fitting NHS battery was wedged in. Even the full force of red Pete’s
feet would not budge it. I felt that God was punishing me for misappropriating
NHS property and sadly decided that the boundary microphone would have to be
ditched, and I should just get myself a clip-on microphone (which was what
TeamSpirit had originally recommended….).


Off I trotted to Currys. “No”, they said, “We don’t do
microphones. You could try Maplins on the Botley Road.” This entailed a trip in the
car, but, after standing for 10 minutes in a queue while the extraordinarily
helpful Maplin’s staff explained some complicated electronic device to a
customer, I was armed with my microphone and ready to go. Quick test when I got
home and it worked! Excellent clear signal. So I should be able to make the two
short video clips that I had undertaken to do.


Now my only problem was to perfect a three-minute spiel and
record myself saying it in front of the camera. Well, there was another
problem, which is that my usual weekend appearance is scruffy. I do scruffy
very well. It’s my natural state. But if I was going to be recorded for
posterity, I needed to try and look professional. I realised that only my top
half would be visible, so put on smart top, jewellery and make-up. Husband
wandered in at some point: surprised to see me dressed up but clearly thought I
had just forgotten to change from
track-suit trousers, which says much about my usual level of absent mindedness.
Arranged camera on a stepladder to capture head-and-shoulders region, checked
light levels, sat in chair, breathed in ready to start spiel, and … the phone
rang. Blood transfusion service, wanting me to make an appointment to give
blood. Go downstairs, find diary, make appointment. Start again.


The thing about talking in front of a video for three
minutes is that it’s quite easy to do it for about two minutes, but then you
snarl up. I had two takes that were near-perfect but where I then descended
into gibberish. There was also one take where the top of my head was chopped
off, and another where I forgot to plug in the microphone. But eventually, I
had a version with just a minor stumble in the middle which I decided I could
live with. So now, I just had to import it into my computer. Quick hunt for the
instruction manual, eventually located underneath a newspaper. Cunningly
designed camera has USB connector that you can pull out of slide slot: neat!
You put it in your computer, which allows you to download the software that you
need to edit your video. This gives instructions for yet other software that
you need to find on the web. You download that and restart the computer as
instructed. You then get a cheerful message to tell you that there’s a new
version of your software, and would you like to download an update now. “No I
would not!” I say sternly to the screen, determined to press on now I’ve got
started. I’m confused as to the distinction between the two bits of software,
but eventually manage to download my video. It’s looking good. Except the audio
starts about three seconds before the video. I try again. Same story. I look at
video on the camera: audio and video perfectly synchronised.


Decide I need coffee, but we are out of coffee, so nip
across the road. Weird look from shopkeeper reminds me that I am make-up and
jewellery on top half and tracksuit on bottom half. Coffee in hand, I regroup.
No advice on out-of-sync films in the manual or on the website of the
camera-maker, which is complex, confusing and looks unlikely to resolve my
problems.  Try Google. There seem to be
only a tiny handful of people out there who’ve had the same problem, and the
replies they’ve had are not encouraging. One man had shot 20 hours of film
before realising the problem, so I reckoned I was lucky in comparison to him.
One suggestion to him was to get into an editing program that would allow him
to shuffle along the audio track.  I
dimly remember using some video editing software in the past that allowed me to
separate the audio and video stream on a file. Hunt through all my software,
and locate Windows Moviemaker. This is encouraging, except it doesn’t seem able
to read mp4 files.


In the back of my mind, there’s a concern that maybe the
problem is due to the microphone. Now, this is what happens to me when I
encounter a succession of obstacles: I start calm and logical, but I then start
to think that there’s a malign force out there chuckling over my misfortunes,
and I lose the plot and move over to magical thinking. If the problem was the
microphone, then my logical brain tells me that the video should be out of sync
when viewed on the camera. But a little voice in my head is telling me I should
try with a different microphone, and so off I go on a futile and time-consuming
exercise. I have another microphone that’s attached to a headset. So I unplug
the recorder from the computer USB port. In response, computer gives me blue
screen of death. Switch off computer. Reboot. Relieved to find it still works
okay.


So I return upstairs to my living room to record two new
brief segments, one with original microphone and one with headset microphone. I
come downstairs, I plug camera into USB port. Blue screen of death returns.
Reboot computer. It won’t start. Realise that this might be due to camera in
USB port. Remove camera. Computer starts OK. Gingerly put camera in USB port.
This time it’s okay, and I download my two trial clips. Both download okay. But
when I play them, I realise there’s a fatal flaw to my test. I recorded clips
with me talking, but did not record my face. So I have no idea whether or not
the audio is in sync with the video.


Upstairs again to re-record. Ultimately, this futile test
confirms that both microphones give an in-sync film on the camera, which
mysteriously transforms into an out-of-sync version on my computer.


I have a faint memory of things called codecs, which
determine how audio and video is converted into a digital form. Maybe I don’t
have the right codecs. At this point, a more sensible test occurs to me. I
should try downloading on to a different computer. Husband who is peacefully
working in his office at top of the house is willing to lend me a laptop, which
I carry to my office at bottom of house. It takes a very long time to boot up,
and once it’s done that, I can’t get the mouse to work. Try pressing buttons
etc. No joy. Further consultation with husband. Decide to replace battery in
mouse. We have batteries, but they are defended by packaging. Further hunt for
scissors. Get battery. Replace battery. Mouse now works. Plug in camera.
Download software. Restart. Get message telling me to download updated software
and decide this may be a good idea, so do that and again restart. This is a
computer that takes a good 5 minutes to boot up and to shut down. Make a cup of
tea while all this is going on. And, joy oh joy, when I have got software
installed and downloaded the video, it works. It is in sync! I have to edit it
to chop off the first and last bits, where I am walking from the camera to the
chair and back, and so I find the manual which explains how to do that, but I’m
in a hurry, as we are going out for the evening, and somehow, I manage to do
the opposite of what I intended, so am left with just the end of the film,
which is a bit I wanted to discard. Still, I think, we’re getting there.
Tomorrow is another day.


A new day dawns. I download the film to husband’s computer
one more time. This time I do succeed in selecting the right portion to save,
and create a file that we’ll be able to download to YouTube. But I’d really
like to back it up on my computer, and there’s a problem. It’s too big to
email, too big for Dropbox, and won’t fit on a memory stick. I used to have
several pocket drives, but I blew up a couple of them by using the wrong power
supply, and the others are at work. Hunt of the house eventually yields a
pocket driving belonging to husband (who is amassing marital points at an
unprecedented rate during this exercise) and transfer the video to my computer.
But when I play it, the audio is out of sync with the video.


Now, although this is disappointing, I’m not sure whether
it’s good news or bad news. The good news is that the file is clearly fine when
played on either the camera or my husband’s PC. So the problem is with my PC
and how it is interpreting the file. So I feel I have to get to grip with
codecs again. The software has actually told me which codecs were used with the
file, and I make a note of them. Googling the IDs leads me to a website that
has oodles of codecs that you can download. A bit more Googling allows me to
find out how to see which codecs are already installed on my machine. But now I
have a quandary. It’s not clear to me that the codec download site is safe, and
a bit more Googling confirms my worries. It seems that you can end up far worse
than you started if you download a dodgy codec. So I have a new idea. I’ll try
the Microsoft site and see what it says about codecs. What it says is possibly the
least helpful advice I have ever seen. It suggests you search on the internet
for the codecs you need, but it then says that it can be really, really
dangerous to download codecs from the internet, and warns you against it.


Well, I think, maybe if I download an up-to-date version of
Moviemaker, it might come with useful codecs. On to the Microsoft site. Yes,
there’s a more recent version of Moviemaker, and I initiate the download
process. But then it demands verification via Microsoft Genuine Advantage. This
rings faint bells as something I decided not to sign up for, having read
reviews that suggested it could slow up your machine. I think that maybe I
should give it a try, but when I try to do so I ultimately get to a website
that explains that the page isn’t working and Microsoft is aware of the
problem.


I decide that, rather than wasting time on a fruitless hunt
for a safe codec, I will shoot one more bit of footage. Once again, make-up,
nice top, pearls. Part of me wonders whether there’s any point to this, and
whether I should not instead adopt the Mary Beard approach of appearing au
naturel. It definitely works for Mary, who is widely adored for her robust
attitude to those who think she should have a make-over for TV. But I decide
that I can’t now change tack, as it would really look weird if one bit of view
had me all glammed up and the next one had the normal scruffy Bishop. The first
two takes are fluffed, but the third is perfect. Except that when I try to stop
the recording, the device is frozen. No buttons at all work, even the off
switch. I’m starting to get emotional but have to try not to cry as it would
just make my makeup run (another good reason for adopting the au naturel
approach). The manual is singularly unhelpful - its advice on problems is
restricted to occurrences such as having one’s finger in front of the
viewfinder. Googling doesn’t help either. All my experiences seem unique to
me  - further evidence of the malign
force. Only solution, I guess, is to remove the battery. That restores the
camera to normal functioning, but the last, perfect, take is described as “file
type unknown”.


Back upstairs for yet another session. Eventually manage a
version that seems okay, which I download successfully. And which looks fine on
husband’s laptop but out-of-sync on mine. Thankfully get back into tracksuit,
remove makeup, and decide I will reward myself with a negroni and an episode of
the Bridge.


If these videos do ever get onto the RALLI site, you may
think that I look a bit stressed for someone who’s just doing a three-minute
piece. But now you know the true story.



Sunday, May 6, 2012

Sharing of MRI dyslexia datasets








One of the great things about blogging is that it allows for communication to proceed far more rapidly than would be possible through conventional academic publications. In previous posts I’ve
made a plea for MRI researchers to share data so that claims about the
neurobiology of conditions such as dyslexia
and autism
can be replicated. After my last blogpost, I was contacted by Mark Eckert from
the Medical University of South Carolina, one of the pioneers of MRI studies of dyslexia (e.g. Eckert et al, 2005). He tells me that a data-sharing
project on dyslexia is already underway and asked if I would be able to share this information with my followers. I am of course delighted to do so! Here is some background from Mark:


The
structural neuroimaging literature on dyslexia and other complex disorders is
filled with inconsistent results. 
Meta-analysis provides a mechanism for identifying results that are
common across studies, but direct analysis of the same datasets provides
greater power, methodological consistency, and new analysis opportunities that
include taking advantage of the behavioral and neural heterogeneity that is
often problematic in small samples.  For
those reasons, there is a growing interest in sharing data.  Prospective multi-site studies are ideal
because the same data collection and quality control procedures can be used
across sites.  These studies tend to be
very expensive, however.  Retrospective
studies take advantage of existing datasets that are housed in dusty hard
drives, but are limited by methodological inconsistencies across sites.  A new NIH supported project, directed by Mark Eckert,
uses dyslexia as a model to address the challenges facing retrospective
multi-site studies.  Methods are being
developed in this project to address subject privacy,
behavioral heterogeneity in dyslexia and control samples, missing data, and the
underestimation of the variance in datasets when pooling data across different
research sites.  His research group is
collecting existing neuroimaging datasets and aims to have more than 2000
pediatric and adult cases from reading disability studies.  One long term goal of this project is to make
available much of the data collected for this study so that scientists can ask
new questions, apply new methods to the data, and develop new collaborations
with other scientists who have complementary expertise and interests in reading
disability.  There are incentives for
research groups to contribute data. For example, contributors will be included
in a Dyslexia Data Consortium that will be included in the list of authors for
manuscripts stemming from this project. 
If you are interested in learning more about the study and/or would like
to contribute data, please contact Mark Eckert at dyslexia @ musc.edu
.


Eckert MA, Leonard CM, Wilke M, Eckert M, Richards T, Richards A, & Berninger V (2005). Anatomical signatures of dyslexia in children: unique information from manual and voxel based morphometry brain measures. Cortex; a journal devoted to the study of the nervous system and behavior, 41 (3), 304-15 PMID: 15871596

Thursday, February 22, 2007

Mr. Sulu Phasers Tim Hardaway



Okay, Jen here. I'm on Safari on a public machine so I can't text up my stuff in purple as ususal--don't see the text color thing here. Anyway, enjoy and comment away.

Monday, January 22, 2007

www.thenewsblog.net



No Drama Queen Bullshit

Unlike some bloggers, who feel oppressed by the act of writing and need to dramatically quit every few months, the simple fact is that we're moving our blog to a new domain, http://www.thenewsblog.net .

Why?

Because the new blogger works better. The old site will be frozen in place as of 5:30 PM January 21, 2007. No more posts or comments will be responded to on this site, except for the previous one.

www.thenewsblog.net is now up and running and is the News Blog's new home.

The End of the News Blog

The Doors - The End - live

The current News Blog is shutting down effective immidiately. The following post will explain why

So who did this?


REUTERS/Mahmoud Raouf Mahmoud (IRAQ)

Disguises Used in Attack on Troops
Gunmen Infiltrated Secured Iraqi Site, Killing 5 Americans

By Ernesto Londoño
Washington Post Staff Writer
Monday, January 22, 2007; Page A01

BAGHDAD, Jan. 21 -- The armored sport-utility vehicles whisked into a government compound in the city of Karbala with speed and urgency, the way most Americans and foreign dignitaries travel along Iraq's treacherous roads these days.

Iraqi guards at checkpoints waved them through Saturday afternoon because the men wore what appeared to be legitimate U.S. military uniforms and badges, and drove cars commonly used by foreigners, the provincial governor said.

Once inside, however, the men unleashed one of the deadliest and most brazen attacks on U.S. forces in a secure area. Five American service members were killed in a hail of grenades and gunfire in a breach of security that Iraqi officials called unprecedented.

The attack, which lasted roughly 20 minutes, came on a day when the United States lost at least 20 other troops, including a dozen in a helicopter crash, making it the third most lethal day for American forces in Iraq.

Meanwhile, the military announced the arrival of 3,200 troops of the 82nd Airborne Division's 2nd Brigade Combat Team, the first unit to reach Baghdad as part of a 21,500-troop increase that the Bush administration hopes will restore order in the violent capital.

"Soldiers from the 82nd come to us ready to engage in a wide variety of operations in support of the Iraqi Baghdad Security Plan," Lt. Gen. Raymond T. Odierno, the second-ranking U.S. commander in Iraq, said in a statement. "The brigade adds operational flexibility that will assist in securing the population."

U.S. military officials said Sunday that they could not discuss the attack in Karbala in detail because it remained under investigation. But they said the version of events provided by the governor's office was consistent with their preliminary findings.

After arriving at the Provincial Joint Coordination Center in Karbala, 60 miles southwest of Baghdad, the attackers detonated sound bombs, Iraqi officials said. "They wanted to create a panic situation," said an aide to Karbala Gov. Akeel al-Khazaali, who described the events with the governor's permission but on condition of anonymity because he fears reprisals.

The men then stormed into a room where Americans and Iraqis were making plans to ensure the safety of thousands of people expected to visit the holy city for an upcoming holiday.

"They didn't target anyone but the American soldiers," the governor's aide said.

After the attack, the assailants returned to their vehicles and drove away. It was unclear how many people participated, and the men's identities and motive remained unclear, but the attack was particularly striking because of the resources and sophistication involved, Iraqi officials said.


So who sent this message? AQ? The Mahdi Army? the Revolutionary Guards? Someone who needs to understand that the US is vunerable.

The uniforms and money spent indicates someone with time to spare. I would hope dunderhead Odierno would realize that all hell could follow at the choosing of some party.

Because if the Mahdi Army is this slick, God help our troops.

Shut yer festerin' gob


I'd rather take advice from a cat before I would
take if from Frank Luntz



Frank Luntz
I am not in the habit of offering partisan linguistic advice to Democrats. But in the genuine spirit of bipartisanship - seriously - I thought this is the perfect time to convey a simple point to the still-euphoric faces of Democrat activists ...

Don't twist the knife.

Let's briefly sketch the political landscape in America today.
Republicans are still reeling quite deservedly from the political thumping they took in the November election.

The polls, pretty bad then, have gotten even worse. One-by-one, key Republicans on the Hill are parting ways with the President over the 'surge' and his 'new strategy' in Iraq. And to top it all off, a Washington Post-ABC News poll taken immediately after the President's speech showed that a mere 40% of Americans believe the war is worth fighting, up just four points from before the speech.

An emerging new majority has spoken, and it is not happy with the old politics.

The Republicans are a party in peril, but all is not milk and cookies in Democrat land. The Democrats - flush with majority status - have a crucial choice right now. They can use their newly-won mandate to settle some old scores...or they can get responsibly and move ahead. They would be wise to opt for the latter.

Democracy is at its best when its practioners use language to unite and explain rather than divide and attack. The blogs from the Left and the Right be damned, the real center of America is upset but not bitter, anxious but not fearful, restless but not unforgiving.

For two years the Republican Party was adrift in meaningless messaging to support meaningless reform - and have communicated absolutely nothing for the past three months. By comparison, the Democrat majority that took Congress in November was remarkably disciplined and effective in promoting change, reform, and accountability in the weeks following their historic election.

But alas, power does strange things to Democrats: put a gavel in their hands and a camera in their face and they revert to the name-calling that kept them from the majority for a dozen long years. Sure, it's easy to land rhetorical jabs on a staggering opponent - but that doesn't make it effective. The message from the electorate in November was 'work together and compromise.' You need only look at the incumbent governor of California who won a lopsided landslide in an otherwise Democratic sweep. Cooperation works. Compromise wins. But over-heated rhetoric says to the world that you are no different - and no better - than what you replaced.

.....................


Ignore this stupid motherfucker

The GOP are the largest bunch of whining children I have ever seen.

George Bush says vote Republican or die and now, when the Dems have real power, he wants to hand out lectures on not twisitng knives?

Where was he when Tom Delay was around. Sucking his balls.

The GOP likes compromise when they are the minority. When they're the majority, they can bully and lie like it's free.