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Network Security Alchemy

Archive for December 2008

Sound proofing and wall batons

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I live in a semi-detached house and therefore have to be considerate to our neighbours when it comes down to making noise, so adding more sound-proofing to to the dividing wall ahead of a AV install is a bit of a no brainer.

After doing a bit of google searching I found a wall-mounted product that should decrease noise by about 50%. Padding out the dividing wall with another layer of plaster board with about 50mm of acoustic wool attached however creates some challenges when it comes down to mounting a TV to the wall (what the hell do you screw the brackets into?).

So before adding the sound proofing to the wall, I added a couple of batons in the correct place for the LCD wall-mount and (hopefully) the center speaker. These should provide a good backing to screw a mount into.

I also ran some trunking over the wall to manage the hidden cables.

 

Trunking attached to wall to better manage cables

Trunking attached to wall to better manage cables

 

 

Batons and trunkning attached to wall before adding insulation

I have run power, a couple of HDMI, a SCART, and a VGA cable through the conduits (note that power takes it’s own path to minimise interference with AV signals. The challenge after adding these cable runs and batons is to make sure the sound insulation will be able to snugly attach to the *plaster* of the original wall. The only way to make this happen is to spend a long time with a craft knife and a ruler.

 

Runs cut into the sound insulation

Runs cut into the sound insulation

 

 

 

Believe it or not, cutting the above piece to size, channelling out cable runs to the minimum required depth, and attaching it to the wall took a couple of hours. And yes, I know that cutting into the insulation will decrease it’s effectiveness but It’s better than nothing and allows me to hide a lot of cable.

 

Cut to perfection!

Cut to perfection!

Written by leonward

December 23, 2008 at 9:03 pm

Posted in Home Cinema

Tagged with

The Home AV Install Part one (of many)

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The first stages of my home AV install are under way, it’s a medium term project and for fun I thought I would document it here.

We moved into a new house close to a year ago and have been pretty slow in making any changes, but this has provided us with the luxury of getting used to how we live in the house before committing to anything  permanent. We found that the area that we have been using as our dining room is far better suited to being a TV/lounge room because of its smaller size and shape than the current lounge room.

When we first moved into the house we nick-named the soon-to-be-ex dining room “the stage” because it was raised above the normal level of the rest of the house with weird stage style lights. Our original intention was to lower all the floors back down to their original level, but after raising the boards it is clear that it will take far more effort (and $) to make it worthwhile.

Last weekend I got stuck into some hard work (with the kind help of my father who supplied most of the know-how and experience)

  • Knocked down the two ledges on the dividing partition
  • Ripped up the laminate floor
  • Laid speaker wire under the floor boards
  • Cut out back boxes ready for some AV speaker front-plates (flush with the wall)
  • Found that the electrical wiring in the room is far-from acceptable, so therefore ran some new cables ready for a certified electrician to hook up.

The Before shot (taken on the day we moved in, hence why everything is just dumped where it landed)

The lounge on the day we moved in

The lounge on the day we moved in

The After shot (and yes I know that is one hell of a mess!)

No more wall sticky-out-bits

No more wall sticky-out-bits!

Written by leonward

December 23, 2008 at 8:51 pm

Posted in Home Cinema

Tagged with

Modem handshake iPhone ringtone

with 9 comments

I was in a meeting last week with a couple of engineers when my phone went off. My normal ringtone is the  sound of a loud 56K modem handshake. Everyone in the room wanted a copy, so I though I would share it here.

The original idea for this ringtone wasn’t my own, I head it on a colleague’s Nokia ( Jim++ ). Following a bit of google / audicity / iTunes-foo, I made my own m4r. I think the result was pretty good.

WARNING – I have been using this ring-tone for about ten months, it gets you strange looks in meetings.

Download it here

Written by leonward

December 8, 2008 at 12:43 pm

Posted in Uncategorized