Tag Archives: weekly head voices

Weekly Head Voices #16: Go Go Gadget!

This post is dedicated to my man Helmut in Vienna.  Your appreciation is much appreciated!

In this edition, I report on my productivity and activities of the past week,  extol the time-saving virtues of iGoogle and conclude with a new WHV feature: The Head Voices Review!  Unfortunately, due to a chronic lack of sleep, there will be no backyard philosophical contribution.  We hope to be back on track for the next edition.

During week 9 of 2010, the temporal context of the sixteenth edition of the Weekly Head Voices, I spent 2 hours preparing for lectures, 3 hours lecturing and 12 hours in scheduled meetings.  I spent a significant amount of time assisting five of our MedVis Ninjas shepherding papers out the door, so now you have to cross your fingers that we get 100% accept rate, else the Ninjas get really angry.  Counting up to the weekend, and without any cheating, I completed 22 GTD tasks, again one task more than last week.  If this continues, I will eventually attain infinite productivity, so you better watch out, ok?

Noteworthy happenings include two Skype Video meetings, which worked really well and saved me a significant amout of travel time. These meetings would be even better if my correspondents would invest in webcams, allowing me to look at more than just my own face during the discussion. In other news, I’ve been spending even more time futzing around with processing, resulting in a first blog post detailing the installation of said library with video capture and augmented reality support on 64 bit Linux machines.

The main topic of this post is gadgets. I’ll be talking about two kinds of gadgets, so first I’d like to start with a screenshot of my iGoogle:

iGoogle your twitter.

I’ve been aware of iGoogle, and used it as a poor man’s aggregator before getting addicted to Google Reader, but never really appreciated the possibilities.  In short, you can add all kinds of web applications, called gadgets, to any number of tabs (each tab is a page), thus mixing and matching for example the social networking websites you use on one single web page.  Because I’d recently been wasting far too much time switching between twitter, facebook (everytime someone mentions facebook, I somehow reflexively and compulsively open the site, hence wasting more precious minutes of my life, which at my advanced age is no small matter), gmail and compulsive news checking, I decided to compress my time wasting into a single page visit. So far, it seems to be saving me a number of minutes every day, minutes that I’m saving for later…

Finally, it pleases me greatly to be able to introduce a new feature on the WHV: The Head Voices Review! [As soon as my TPN completely masters Ableton, I'm hoping he'll make me a nice theme song that I can insert here.] Some of you might know that this blog has a rich history in reviewing gadgets. See for example this post where, after weeks of investigation, I posted an in-depth review of not one, but TWO cheap-skate headphones.  To summarise:

  • Sennheiser PX20: SUCKS.
  • Philips HP-200: AWESOME.

To kick off this first edition, I’m going to discuss three more computer audio gadgets.  First off, the Logitech S3-30 2.1 (that means stereo speakers with sub-woofer to my non-audiophile readers) computer speaker set with built-in amplifier.  I’ve used these extensively for five years now (purely for the purposes of reviewing them of course) and have set out my conclusions in the table below:

  • Logitech S3-30: SUCKS BADLY.

I base my conclusion on the sub-par design of these speakers, especially in terms of the cabling.  Below is an artist’s rendition of the cable design for these speakers:

Artist's rendition of Logitech S3-30 speaker set cable design. Note the bird's nests.

As you can see, it’s as if the engineers had been challenged to see how much cable they could waste in producing these speakers, and as a side-challenge, how they could ensure that any desk carrying these speakers would instantly turn into an unmanageable mess of cables in various states of entanglement.  Why why why didn’t they read this really important paper?

I have recently ordered the JBL Duet 200 to replace the S3-30.  After at least five more years of extensive testing, I will document its performance in a future Head Voices Review.

On the topic of Logitech, a number of my screencasts up to now have been performed using a Logitech Analog Desktop Microphone with 3.5mm jack plug, purchased especially for that purpose.  Now that I’ve also purchased the quite affordable (6 bucks for the whole headset, that means headphone AND microphone!) yet very stylish Sweex HM400 headset, also for recording screencasts, I can present the following comparative review:

  • Logitech Analog Desktop Microphone with 3.mm jack plug: SUCKS.
  • Sweex HM400 headset: AWESOME.  Wait till you hear my deep baritone narrating the next screencast.  I expect that it should sound almost exactly like this:
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Err, that’s it for the first edition of the Head Voices Review! I don’t think that you have to worry too much about the next edition arriving anytime soon.  Here at HVR headquarters we take our sweet time, as we pride ourselves in jumping to all of the wrong conclusions, all of the time.

Weekly Head Voices #15: Auto-tune my cloud.

In this 15th edition of my weekly head voices, I move yet more of my life into the cloud, discover (years after everyone else) the delightful auto-tune internet meme and finally go all backyard-psychological whilst staring into the distance, obviously defocused, and waxing on about the purpose of this weblog.

Before continuing, you might like to watch this clip explaining why you shall build a turtle fence (I’ll get back to the clip after my dropbox story):

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Last week I completed, you guessed it, 21 GTD tasks spread over 10 projects. Once again, one more task than last week. The question is thus not if, but when I’m going to have to disappoint you. :)  Worth mentioning on the miscellany front is that I’ve started playing around with processing, a fantastic little system for programming visual effects and interaction, in preparation for a new first year course. My goal is to get the students irrevocably addicted to the coolness that is media processing! I’ll keep you up to date…

In a previous post, I was quite enthusiastic about Dropbox and its possibilities for collaboration. As some of you might now, I really like this whole living-in-the-cloud idea: I use GMail, Google Calendar and Google Documents quite extensively and I’m even paying for extra storage with the big G.  So, during the past week, I decided to bite the bullet some more and to move 12G more of my data right into the cloud, courtesy of a 50G Dropbox Pro account.  Up to now, I had a ridiculously complex synchronisation system keeping various subsets of my data up to date between a netbook, a laptop and three different servers. At the core of this system was unison, a brilliant multi-way open source synchronisation tool. In spite of this system mostly working, its complexity and the starkly contrasting It-Just-Works nature of Dropbox convinced me to give the simple solution a shot.

So far I can only report that I remain impressed: At one stage I manually copied a complete dropbox (12Gigs) from one already synced machine to a fresh target machine and started the Dropbox software on the target. It politely asked:

There is already a folder in your home folder called Dropbox. Do you want to merge all the existing files in that folder into your dropbox?

After clicking on the “HELL YEAH!” button (that’s how it felt, ok), the software went on indexing for a minute or two and then correctly claimed that everything was nicely synced up. Very much understated robustness, kudos to the developers. I’m going to test-drive this whole business for one month, and then let you know whether it’s going to be  a permanent fixture in my cloud-home.

Still wondering why you should build a turtle fence? Well, you can blame the Auto-Tune internet meme. Very shortly, auto-tune is an audio effect that corrects one voice to be perfectly in tune with backing music. In other words, a vocalist who can’t sing is in fact no problem at all, computer will fix! Initially it was used quite sparingly and its application was even sometimes kept a secret, until artists such as Cher and especially T-Pain turned it into an art form, in fact exaggerating the effect until it gave a decidedly unsubtle robotic voice effect. The effect has become so famous that it now gets to call itself an internet meme and is often parodied.  The turtle clip above is just one of a whole series (auto-tune the news, see them all!). In the clip below, internet scientists *ahem*, including the well-known Professor Weird Al Yankovic, take an in-depth look at this phenomenon:

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Finally, back to the purpose of this weblog… Good blogs all seem to have some central theme, such as photography, environmental issues, science or pokemon. I seem to recall that I’d also seen this in more than one “how to become an A-list blogger” guides.  I don’t find it hard to believe that this is very important.  However, this blog has never had a central theme, it’s always been me blabbing about the various things that I find blab-worthy.  I’ve never been able to come up with something better, and it was definitely not for lack of trying.  The Weekly Head Voices, by focusing my blabbing into slightly more coherent episodes, have finally helped me to come to a conclusion.  Besides acting as a creative outlet, sitting down every week and carefully externalising a specific subset of my experiences with the express purpose of having it read by a small number of people, is an important ritual during which I am forced to distance myself from the events of the week, and to self-reflect.  By formally concluding the previous period in this way, one has the mental room to manoeuvre in preparation for the next. If you by any chance find any of it entertaining, or at least you just can’t look away, it’s a win-win situation!

In other words: Theme-schmeme! The voices in my head will continue to be the many and various topics of this weblog, thank you very much. :)

Have a great week kids!

Weekly Head Voices #14: My Week Was A Wormhole.

In this week’s post, documenting the 7th week of 2010, I wonder about perceived business, mention two of our most recent open source releases and give to you, my readers, two screencasts about the DRE, in addition probably highly effective in the treatment of insomnia.

Screenshot of the FoBVis system. This is just one of our many attempts to take over the world, subtly.

Just before bedtime on Monday, I had still managed to make a note in my special top-secret Weekly Head Voices journal.  I usually do this every day to make sure I don’t forget anything by the weekend, when I usually have some time to write these posts.  Thursday night’s entry simply says “WTF, where did my week go?!” — There had been no other entries since Monday. I’m still not quite sure why it felt that way, as my breakdown of activities is similar to that of the previous week: 2 hours of lecture preparation, 3 hours of lecturing, 15 hours of scheduled meetings and 20 tasks completed (one more than last week!!) across 10 projects. Perhaps those four extra hours of meetings don’t scale linearly in the amount of business they cause, due to the number of extra context switches that they bring. I have to add that a number of truly exciting projects are brewing, but I can’t say more about them until I can say more about them, if you know what I mean.

We (The Group, of course) recently released two new open source software projects:

  • FoBVis is a tool for the real-time acquisition and visualisation of human motion: Currently it supports the Flock-of-Birds electromagnetic acquisition system, we are currently working to integrate Optotrak optical tracking system. We should also shortly have a version of the DRE that can run the FoBVis on YOUR computer as well.
  • HistoVis is a client-server system for the visualisation of large collections of (registered) histological sections.

It’s all very exciting that more products of our research are entering the big bad outside world!  The FoBVis is already being actively used by the LUMC Laboratory for Motion Analysis (we hope that more labs will start using this soon), and HistoVis will soon go live from the visible-orbit.nl server. Of course these have both been released under the new BSD license, as the GPL sucks.

Screencasts: Video Performance Art of the Nerdily Inclined. That’s where one makes a recording of one’s computer screen whilst demonstrating some or other procedure, optionally narrated by oneself, and then proceeds to upload said recording (called a screencast) to YouTube or similar. See a previous post of mine for one possible (and free) way of doing this on Windows. This weekend I produced and uploaded two such pieces, both demonstrating aspects of the DeVIDE Runtime Environment, or DRE, that paradoxically do NOT involve DeVIDE itself. Especially the second is really soothing, one could even say mildly sleep-inducing.  I just say: (1) Try (2) it.

To conclude, I give you a track from the new Massive Attack album Heligoland, called Paradise Circus. It should make your brain sit and scratch its chin stubble, not unlike the usual dose of backyard philosophy:

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Weekly Head Voices #13: So you want to sue me?!

In this post, I talk about our latest EuroVis news, give a quick break-down of my activities of the past week whilst turning my productivity glut into a game, sing an ode to DropBox, get threatened with a lawsuit (again) and impart, as per usual, some applied backyard philosophy.

EuroVis 2010 Logo

All hail the beautiful EuroVis 2010 logo!

To kick start this blog post, allow me to get this off my chest: BOTH Stef Busking’s paper on the <CENSORED> and Peter Krekel’s paper on the <CENSORED> were conditionally accepted for EuroVis 2010! There’s some hard work ahead to get the papers ready for the final round, but this conditional acceptance (70% of submitted papers were rejected) is a great achievement. You may send them your webcammed applause and adoration.

During the past week, the 6th of 2010, I did 2 hours of lecture preparation, 3 hours of straight lecturing, 4 hours of demonstrations and 11 hours of scheduled meetings, most of them quite energising. According to my GTD system, I also completed 19 tasks spread over 11 projects. I’m mentioning this here, as I want to increase my weekly task completion count, and posting this on my blog turns it into a weird kind of game. Once again, you are allowed, no you’re encouraged, to boo and hiss at the appropriate moments.

I also finally got around to updating our research group’s publications listing scripts to generate per-paper pages, so that we’ll henceforth have a (hopefully) attractive webpage to go with each published paper. See this for an example of the per-year listing, and this for an example of such a paper page.

Screenshot of example per-paper page.

Screenshot of example per-paper page, click to go there!

On Wednesday, three of us got together at my house to convert a complete PhD thesis (a good one, if I might add, and I’m allowed to, since it’s not my own) from Word to LaTeX, to get it ready for print production. Besides having lots of fun (besides bubbling personalities, beer was also involved), we got to stress-test DropBox by concurrently working on a shared folder filled with .tex files, and often doing full LaTeX builds involving latex, dvips, ps2pdf and bunches of image conversions. In spite of this dangerous concoction of a PhD thesis, concurrent editing, beer, laughter and the cloud, Murphy never arrived at the party and we ended up with 170 pages quite handsomely typeset in LaTeX. Kudos to Dropbox! (and us of course. duh.)

On a slightly less excited note, I’ve just been threatened with a lawsuit for the second time due to activities on my blog. This time, it’s a very angry and foul-mouthed homeopath. If you’re interested, search the latest few comments on my Werner post for the ones made by a certain DJ. Currently I’m hoping he’ll take the reasonable (for both of us) option and stay away. (DJ, if you’re reading this, no this is not THAT promised post. I’m keeping to my end of the deal: You stay away, your identity is safe.)

Continuing a short but promising tradition in backyard philosophy, I’d like to conclude with something I seem to remember a Very Flat Cat telling me years ago, and something that recently came up again in yet another interesting discussion with the same extremely interesting guy from last week’s visualisation science discussion:

Under-promise, then over-deliver.

I’ve seen some pretty good mottos, but this one’s an absolute keeper. Thank you very much Very Flat Cat, also for this.

Weekly Head Voices #12: Ceci n’est pas une bibliothèque.

Welcome to the latest edition of the Weekly Head Voices, in which I briefly touch upon the, to my mind, mention-worthy events that took place within my field of observation during week 5 of the year 2010, and with which I too finally have an excuse to (ab)use the famous words of Magritte for my dubious ends. :)

WE INTERRUPT THIS PROGRAMME FOR THE FOLLOWING IMPORTANT ANNOUNCEMENT:

I’m officially not supposed to talk about this until the next edition of the Weekly Head Voices, but it’s too big and too cool to keep quiet about until then.  Google has just released Buzz, their location-based status / media updating system, and it’s fantastically cool.  I’ve just posted my first Buzz via Google Maps 4.0 on my E71 (I think I’m the third buzz in Delft EVAR).  Don’t know what Buzz is? Check this YouTube clip:

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YOU WILL NOW BE RETURNED TO YOUR NORMAL PROGRAMMING.

The reason for the title of this post is my Saturday visit to DOK, Delft’s unique library concept. It’s not really a library, but more of a fantastic place of gathering that coincidentally contains thousands of books, CDs, DVDs and, err, a coffee shop! They even have a number of sonic chairs that one can make use of to listen to music via the mounted Macs. This Saturday, live music by one of the artists who exhibited at the DOK.  I made you a short snippet:

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As even this short edition should end on a philosophical note, I’d like to conclude with an interesting discussion I had on whether the type of research we do in (medical) visualisation can be considered to be science. Very strictly speaking, the scientific method consists of observation, hypothesis forming and finally experimentation to prove or disprove the hypothesis. A large body of visualisation work is concerned with making stuff that solves hard problems, i.e. formulative research as opposed to the more traditional evaluative research. Although the question of whether making stuff that solves hard problems constitutes science is a complex discussion that deserves a whole year of blog posts, I am going to conclude with one possible and simple take on situation:

By taking this constructive approach we are, besides actually solving problems (a neat by-product, no?), discovering how to create effective visual representations of complex phenomena hidden in even more complex data. By doing this, we are in fact observing the supremely complex system consisting of the whole pipeline from data acquisition to insight, all the while experimenting with parameters (in the widest possible sense of the world) and thus confirming or disproving hypotheses concerning the nature of the pipeline and its various components. Together, these hypotheses make up the model that governs the effective extraction of insight from data via the human visual system.