Chris Worfolk's Blog

As I’ve mention before, I’ve pretty much been unable to think about anything other than sound systems for the past few weeks. As such I’ve spent time re-searching them lots and trying to work out what I want if I suddenly find myself with like £3,000 and have to spend it on a sound system for some reason rather than using the money productively.

I say ultimate, it could be even more powerful and I’m sure nightclubs have more powerful systems. However I’m fairly sure that this is more powerful than some bars and indeed even clubs in Leeds have. Not bad for a bedroom system :D. Before I talk about my current design problems, I’ll let you have a look.

First off, the monitor is crap. It’s a floor monitor, a good one but for a DJ booth it’s probably not the best choice. Also, if the monitor is being used for a band, there is only one monitor for everyone rather than one monitor each.

Secondly, this presumes that if you connect two speakers to one amplifier channel, while it reduces the impedance and so increases the power, the power will be split between the speakers. If this is not the case the speakers could be overloaded. It is also the case with the sub-woofers that the amp is actually under powered.

Thirdly, the crossover which is before the sub-woofer amplifiers maybe unnessecarry given the other parts of the audio signal in the crossover are not being used. I don’t know if putting it in will actually have a negative effect as it means the sub-woofers will only be getting fed bass though most of them can do a larger range than that. If taken out the sub-woofers could be done in stereo rather than mono as they currently are.

Other concerns and general notes are there is no digital effects processor. I looked into putting one in but there didn’t really seem much point. Maybe there is, I’m open to the idea. Also there are no microphone pre-amplifiers which isn’t really needed given the mixing deck has mic pre-amps but it might boost quality a little. The equipment on the whole is a bit crap. A better DJ deck with XRL outputs would be good. There is no CD players and while the laptops can play CDs, DJs may prefer seperate CD players.

Finally, in terms of expansion, you could daisy chain several speaker stacks. If you got two distribution amplifiers and sent all the left channels to one and all the right channels to another you could have two identical speaker stacks acting in stereo with each other which would also take the power from 4.2kW to 8.4kW plus whatever the booth monitors output.

Bah.

Two down, four to go. SY23 went really well on Tuesday until we got to The Old Bar afterwards and I realised I had missed a question. 8 marks. Out of 60. That’s over 10% of the paper! I had left it to go back to it later and somehow missed it when I went through everything again.

Then this morning (yesterday morning by now) I had SY22 which went fairly well given everyone else seemed to think it was a bit of a strange paper so I’m not too worried about dropping a few marks here and there. That exam was one of the hard ones along with GI so it’s good to have it out of the way.

8 days since I blogged last. That has to be some kind of record. I had a post lined up last Friday but after clearing my head with a walk through town I lost the motivation to finish it.

For weeks now, all I’ve been able to think about is sound systems. It sounds like a joke but it’s driving me insane. I can’t think about anything else. As far as I can make out it’s just my subconscience trying to avoid the subject of revision and Rich assures me that such obsessions are quite normal, explaining how they painted their entire house to avoid revision.

Yesterday I managed to briefly take my mind of it by updating the spec for my server. They seemed to have stopped doing the case I was going to get and the new one is missing a drive bay (it only has 11!) so I had to pick a better one. It also occured to me I was missing a heatsink which wouldn’t have been the best situation. Today I actually managed to get my ass out of bed with a promise of a breakfast and got some revision done. Attempts to sustain such work seem to be once again failing though.

Spending a string of continuous nights in front of my computer screen has unfortunatly acted as some what of a eye opener though. I’ve realised that I am exactly where I was 5 years ago. Sat in the dark, in front of a computer screen, promising myself I wouldn’t still be here in 5 years.

Ain’t no sound in space. You know why? Because sound can’t travel through a vacuum!

So why is it I can hear Voyager travel past the camera in the opening credits!

Is it really that much of a mission to be scientifically accurate? Firefly managed it. I mean sure, that was a show so universally hated that the network went to the extreme of actually cancelling it mid-production but still.

I promised a while back that I would post pictures of the PA system I got for Rationalist Week. Now I’ve finally got my phone transfering Bluetooth files again here they are. The first two are obviously one of the speakers (with a 500ml coke bottle for size reference) and the other two are the mixing deck and amplifier.

Friday night was The Riley’s which are the unions awards for societies. Having burned it down to Bretton Hall and back to see Claire’s cool art displays we almost made it back on time. A-Soc was shortlisted for only one of the three awards we were initially nominated for (how could we not be shortlisted for best society?!?) and we ended up losing to Bretton Music Society (is anyone else thinking who?) so that was a bit of a bust. We were sooooo robbed.

Afterwards we headed into Fruity after picking up a John and proceeded to dance the night away in Stylus. It’s been ages since I’ve been to Fruity and so it was good to finally get another one in as it was a decent night in the end.

Having met Joanna who works at the chaplaincy during Rationalist Week I decided to take her up on her invite to come down to Skeptics Anonymous on Friday. It basically consists of having lunch and sitting round chatting about religiously biased philosophical topics. There was quite an interesting range of people there, indeed there were quite a few Christians. As seems to be the way with these events, the audience generally seems to be slightly eccentric postgrads rather than undergrads.

The conversation mostly followed the lines of going round the circle with each person saying where they stand. As points came up we would then drift off and discuss a point more in depth. All in all it was a slightly strange but never the less fairly interesting event and I think I will probably drop by again.

I’ve been running around the banks all day. Went down to Halifax to transfer my student account over from HSBC to Halifax for the bigger credit limit. They turned me down. Apparently my credit score wasn’t high enough. I was told that there were no actual problems, there just wasn’t enough there.

That’s kind of strange given I have two credit cards, I’ve previously had another and I have a student overdraft as well. She told me to phone Halifax up as they don’t get much information in the branch. When I phoned them up they told me that basically what the employee in the branch had said didn’t make any sence and they couldn’t actually do anything but contact the credit reference agency (they claimed Halifax used Equifax, the branch earlier today claimed they use Experian).

So now I’m waiting for my PIN number to arrive so I can check my online credit report. Of course if that hasn’t arrived by the weekend it’s going to be the weekend after that I will be able to get hold of it.

I also tried to close my old current account down but they told me I couldn’t do that without my cheque book.

So it would have been a completely wasted trip if I hadn’t also have gone home to vote although frankly that doesn’t really make me feel any better.

I then headed over to HSBC to ask them to raise my interest free overdraft limit. They raised it to £1,250 which is close to half what Halifax is offering and stopped short of saying that should have automatically been done for me in September though it was reasonably obvious it should have been.

I also sent off my application for a Lloyds TSB credit card today which I’m assured by the letter is “guaranteed.” It will be interesting to see if they actually give me it as it comes with a minimum credit limit of £1,000. I already have two credit cards but I’ll be cancelling my existing second card down if I get this one.

As for the rest of the day, I went in to the ARC and Kay apparently isn’t going to be in until next week, I’ve lost the invoice for a product I need to return, my laptop is about to die and needs to go back leaving me with no way to do anything as all my applications are on there and can’t be re-installed and the circle may well be about to be plunged back into hell again. Perfect.

It took me 5 hours to get to sleep last night. 5 hours!

I realise that most of you are like full time insomniacs that take 5 hours to get to sleep every night but it normally takes me like 15 minutes so proportionally, based on it taking 5 hours to get to sleep normally, that’s like you lot not being able to sleep for 4 days (4 days and 4 hours to be exact).

The weekend saw another weekend of work (fun) especially as on Sunday night Gary had overspent on labour so Martin randomly picked a handful of people not to work and they all happened to be on the night sheet – we finished filtering at 1:30 in the morning (normally you know you’re behind when it isn’t done by 8pm). Got out at like 3:30, bit more money though I guess.

Went down to the banks on Monday to move money around and try and move my student account – I’ve got a meeting to sort that out on Thursday. Went to Sarann’s for dinner which was really nice, it ended up getting gatecrashed to twice the size of the original invite list though lol. Phil was there from the start then B was brought followed by Kieran turning up and finally Matt and Kat.

Then today we had a faith and culture assembly – or so I thought, turned out it had been cancelled (nobody told us, though what was I expecting from the union?). We tried to pull together a quick committee meeting and had a main A-Soc meeting too to sum up Rationalist Week. Finished as usual with a trip to The Old Bar.