Need help with voice activation switch

[blackord]

I am an engineering student doing a college project. the project title that my groups chose was the voice activation switch. i need help with finding the circuit to make this project. i was also wondering what kind of IC can be used to make the voice recognition circuit. i hope that all the people here will be able to help me out with this project. thanks alot in advance for your help.

 

[D.J.]

Hi

Not sure if it would work but, hook your microphone to the base of a transitor and have the transistor switch a light. If you want it to switch and stay switched, use an SCR.

Regards,

D.J.

 

[Dr.EM]

This may be of some help:

http://www.discovercircuits.com/S/sou-operate.htm

 

[Emantra]

i think this link might help

i hope that this link might help u
here is the link

https://www.electronics-lab.com/projects/sensors/025/index.html

 

[chemelec]

An MC2830P is a Voice Activated Switch, Built as a Integrated Circuit.

Works Quite Well.

Voice Recognition, Not sure how you would do that, But obviously you would need a Digital Comparison to a Known Speech pattern.