voice opearted switch

finally it worked

welli got a circuit to work but it only recognises on or one and off it consis of and integrator and differentator circuit that causes it to select a frequencey that operates to switch a SR flipflop and cause teh circuit to light soif you want you can try it here goes jut remember the input is a mic and teh out put is a LED and teh circuit operates between 8.2 volts and 9 volts. here it is

ps teh amplifiers that were used are LM358 and the value of number for the sr flipflop is 74279 the last transistor value is a 3904 and the three other transistors values are 2907

Hi all,
I am a new member and thought that i would get some help form professionals of the electronic world.

i need to build a “clap” on/off switch operated. This circuit will include one Op-Amp LM324, one IC PIC12C508A and relay. I need know principle, but i am actually do not know where to begin the process. i need to know about the circuit that i have to build and also the type of analysis that i need to in cooperate in for the circuit to operate as said above

any help on what should be done would be of great apperation and ,also any links that has projects of that sort will be of ever more importance to me

thank you

For people interested in voice recognition

Here are some voice recog IC sites:

http://www.digac.com
http://www.sensoryinc.com/
**broken link removed** (I've used a lot of their voice recording chips)

In my home I have a system called "Mastervoice-Butler in a box", basically it's a voice recognition system that sends X10 signals through the AC lines to control just about anything, but it's a tad pricey.... and works ok but not really well (I got it off of eBay for about $40) You may be able to disassemble the thing and re-engineer it for your purposes though.

http://www.mastervoice.com/butller.htm

Some other possible hackable devices:

**broken link removed**
**broken link removed**

General info, you will find links to voice/rec ic manufacturers here.
http://www.speechtechmag.com

And for those interested in getting the "Clap" a preformed search on google:

http://www.google.ca/search?hl=en&ie=ISO-8859-1&q=clapper+circuit&meta=

Resc.