Archive for the 'Technology' Category

Aego 2 Speaker Innards and Repair

About 6 years ago I brought a pair of Aego 2 speakers from Acoustic Energy, who make some very good speakers, which were the best for the price at the time and still are today. After awhile the left channel started to stop working intermittently and I found that tweaking a jack in the front input worryingly fixed it. I found that eventually this didn’t even fix it reliably anymore so I decided to take it apart and try to fix it…

IMG_4298 IMG_4296

Whilst taking it apart I found the speakers were very well built and surprisingly simple inside, apart from the circuits.

IMG_4303 IMG_4290

I found that three of the solders for the front jack input on the front panel had broken! This was probably from the many times it had been moved around the country as I’ve lived in various places. The broken solders would have caused this problem because the input from the back goes though the front input so it can be switched off when a jack is inserted in the front, but with the broken solders it was cutting out more than intended. I hoped that just re-soldering them would fix the problem I was having.

IMG_4313

Once I’d re-heated the solder on each of the points and added a bit more solder they all joined properly again and the problem I was having before had gone. So after putting it all back together I’ve got a great pair of speakers working fully again.

Advertisements

The DLNA experiance

Carrying on from my previous post, this blog post http://gxben.wordpress.com/2008/08/24/why-do-i-hate-dlna-protocol-so-much sums up my experiance with DLNA quite well.

So basically stay away from DLNA if you want to stay sane. Just build a HTPC and use something like XMBC instead, you’ll get a far better experiance from doing so.

Ad hoc trend tracking (or where’s it snowing?)

The heavy snow falls last week in the UK have caused quite a lot of chaos, a lot of which is due to not knowing how bad off different areas were. Ben Marsh created a mashup of a snowmap last Sunday, before snow had fallen over much of the UK, which plotted posts on twitter with the #snowuk tag against a photo and report of the snow level. This shows how quickly it is possible to directly track things over the internet using an ad hoc organised system over services like Twitter.

Contrasting to my last post, where the trend was tracked indirectly, this is directly tracking on outbreak of snow with tags from people. This is tending towards ideas from the semantic web by making information more machine readable, and twitter is encouraging this with the internet population. This is not done in a semantically strict way though but using ad hoc tags and meaning decided by people as they are needed, as we have learnt from the past with the web.  This is probably more the way people would want to interact with the semantic web, but it does remove some of the key ideas of interoperability and data linking.

Mashups like this won’t be able to accurately or reliably predict anything but they do have a very fast reaction time. This makes them very useful to people, which is what matters, so how can we start using systems like this on a more global scale?