Sound sensor

[Moskus]

I need a sound sensor. Something that detects that a sound in a room is higher than a given level (adjustable by potmeter?) and then triggers a DS10 for example.
Is there such a thing available?

The idea is that when my little baby girl starts crying, I can have HomeSeer turn on monitors and show me her camera. That way I can see if we need to go upstairs, or it was a "false alarm".

[Moskus]

Mrhappy at homeseer gave me a tip about this:
http://www.quasarelectronics.co.uk/3126 ... switch.htm

[soitjes]

I solved this in a cheap way, although you must have a server running in your house. With exactly the same purpose : react when the baby is crying, although in my case it's a boy

I use a cheap microphone (like this one : http://dx.com/p/multimedia-microphone-w ... mount-2717) and I have written an xPL application which triggers an xPL message when a certain threshold is reached for a number of seconds (xPLSound can be found here : http://www.digitalhomeserver.net/blog/?p=131).

Soitjes.

[Henk]

zie http://www.conrad.nl/ce/nl/product/0726 ... 0&ref=list

it may work but risk it may not ..... you may train your baby to clap his hands ...

[Moskus]

Oh, I really, really wish I knew more about xPL. But it seems very hard to set up...

[soitjes]

I admit that I had a lot of trouble understanding xPL myself. Mainly because it's somewhat cumbersome and not so well documented. A good tutorial would do miracles. As for the hard setup : there is light at the end of the tunnel : http://domoticaforum.eu/viewtopic.php?f=17&t=6210. You will no longer need xPLHal (which is outdated anyway) nor the xPL hub. Should make the xPL life much easier.

Soitjes.

[Meinaart]

What kind of camera do you have?

There are some models that have a a/d input that you could probably use in conjunction with a electret microphone. Some webcam models have a micrphone built in.

[Moskus]

In the end I went for the relay in post 2. Works great!

If I were to use a microphone, either analog or digital I still had to write the trigger software myself. With an analog microphone I would need a spare mic input in the vicinity of the crib. With the digital route I would have to figure out a way of of grabbing the audio stream.

If you have some tips here, I'd love to hear it! I have both analog and digital (wifi) cameras.