I just got quantifiably cooler

29 01 2007

I’ve finally stepped over. I’ve ordered a new 13″ shiny white macbook. Extra RAM too (2GB), to try and future-proof it as much as possible, since I’m not getting anything else for a long time. This will of course be my new laptop notebook. It’s kind of weird, moving to a completely new system.

Traditionally, I’ve been a computer nerd. I still am. My current laptop is an IBM Thinkpad T23, running (of all things) gentoo linux. That’s quite different from the supposed paragon of GUI glory that is OS X. I’ve been used to setting up things from the most fundamental level of kernel hacking and command line manipulation, configuring pretty much everything to the way I wanted it (or at least the bare level of functionality that I could cope with without spending 17 more days leafing through manuals). Now everything, I’m told, “just works”. Hmmm.

There’s a great set of penny arcade comics about slowly growing to love the mac (be warned about the links, ye of faint constitutions. The content/language/world view/existence of the series is a little… florid). I feel a little the same. In two weeks time, I will have progressed from declaring my hatred of mac systems (prompted largely by the fiendish filemaker database CBS used for many years) to owning two ipods and a macbook. Oh well. Three cheers for hypocrisy.

The main reasons for the switch were essentially the apps I use. I tend to use my computer to manipulate and muck around with images and audio, and for college. I’ve currently got the GIMP under both Windows and Linux for all my image editing needs, and it’s available for Mac too, under X11. If Kristy keeps doing advertising stuff for her work and church, and Adobe keep their student discount for CS3, we might get that down the track. At the moment that’s $500 we don’t need to spend though.

The other main thing is that I’m going to get Accordance for my studies. Whatever I did, in order to get powerful bible software I would have had to change my setup, either to Windows or Mac. I like the power available in Accordance, and the breadth of Bibleworks (which apparently is one of its major strengths - you can get a much wider variety of modules for it) doesn’t effect me now anyway, as I’m only concerned with English, Greek and Hebrew.

So it’s coming in just under 2 weeks. We get a (almost) free ipod with it, thanks to an educational rebate. Kristy is happy. When that happens, I’ll probably set up the laptop as a windows machine for Kristy to use when she’s teaching, and make our desktop into a linux server to keep music and image data on. I’m thinking ubuntu… I’d like to try it. But that will be a story for another day (when I get sick of playing with my shiny new mac).





Beaching weather

27 01 2007

I went down to Clovelly again today for a snorkel, only to find it to be a raging whirl of white water. It seems that high winds, high tide and a large swell sweeping straight in to the bay make for whale-beaching conditions. Who would have thought?





All your base are belong to n-dimensional vector space

26 01 2007

I’ve been doing some work at UNSW over the college holidays, getting my brain back into some electrical engineering. Its taken some doing, let me tell you. I have found out that I used to know maths, but now…

One of the very cool things about work has been reading lots of different types of papers in a variety of research fields. I’ve been doing some editing of papers, largely to do with signal processing. This is a field that essentially has to do with taking some sequences of information, then manipulating and tweaking it to acheive a result that you want. Audio processing is one example, coding of image data (such as JPEG) is another. My undergraduate thesis was in this area, where I developed an algorithm that would work with cochlear implants to reduce background noise so that recipients of the device would be able to understand speech better.

So I’ve been able to keep up with some of the things that other people in this research group have been up to, generally related to speech processing. There’s one guy who has done some work in the field of automatic language identification, specifically classification of languages into tonal (languages such as Chinese or Tamil) and non-tonal (e.g. English) categories. He’s pretty much the first person to look into this area, which is exciting. Another guy is developing some speech enhancement techniques that mimic how the human auditory system hears sound, specifically the phenomena that when a loud sound is present, you simply don’t hear softer sounds. Very nifty, and very interesting.

Over the coming week I’m going to have to give myself a crash course in some sophisticated statistical modeling techniques, particularly kalman filtering and particle filters. I’m reviewing a paper that uses these techniques but is a little scant on the detail, and I need to flesh out what is happening a little more. Should be fun, but perhaps a little taxing on the old holiday-brain.





What I’m reading

25 01 2007

I just started a new book today. It’s one that Phill and Colette gave us for Christmas, called Dominion and Dynasty, by Stephen Dempster. It’s part of the New Studies in Biblical Theology series.

DominionDynasty

What is does is look at the Hebrew Bible as a whole, and tries to see what overall shape the Scriptures have. The “wide-angle lens” approach looks not at the Old Testament as we have it, but rather at the final canonical form of the Hebrew Bible, the one that Jesus most likely had. The focus is on the Tanakh, referring to the Law (Torah), the Prophets (Nevi’im) and the Writings (Ketuvim), the traditional division within the Hebrew Scriptures. This is different to the OT in a number of organisational ways, giving a different order to the books at a number of points (one of the more significant examples is that the Old Testament finishes with a prophetic expectation from Malachi, whereas the Tanakh ends with Chronicles, which has a certain note of expectation that God’s promises to his people will be fulfilled).

So far (I’ve read just over one chapter) it’s been interesting just seeing the groundwork defense of what his thesis is being laid - he has to argue quite strongly against a bunch of modern scholarship just to establish the idea that the Scriptures might be considered a unity. Having just studied for an Old Testament theological exam, I’m looking forward to thinking through again the broad ideas that run through the books when taken together, rather than the atomistic verse-by-verse or chapter-by-chapter we exegetes often get caught up on.





The Fish Whisperer

24 01 2007

I think I’m like a pied piper for fish.

Kristy bought me a snorkelling set for my birthday at the end of last year, which has been great fun. I went snorkelling yesterday with Mike Allen, down at Clovelly. It was an overcast day, just spitting with rain. We had been planning to go for a couple of days, as my final exam for first year college was that morning. We expected to jump in, swim around for perhaps 20 minutes, then get out absolutely freezing… and find something else to do.

However, it was great. Plenty of visibility, warm water, and no-one else there at all.

And fish.

I’d noticed a little last time I went, but particularly this time, that fish seem to follow me around. We think we worked out what was going on. My flippers are my old bodyboarding fins, some really bright green-and-yellow-swirl Hydro Fins. It turns out that fish think that I’m a really big fish because of my flippers, and follow after me, presumably hoping to pick up scraps of food (a little like wrasse following a groper).

So I think I’m the fish whisperer, or some sort of pied fish piper.

Cool, huh?