Tuesday, March 8, 2011

CrazyEngineers Forum - Electrical & Electronics Engineering

CrazyEngineers Forum - Electrical & Electronics Engineering


Negative frequency

Posted: 08 Mar 2011 02:08 AM PST

Hi to all CE,
I HAVE A LITTLE BIT DOUBT REGARDING NEGATIVE FREQUENCY,USUALLY ENCOUNTERED WHILE DEALING WITH TRANSFORMS.....
my question is...
why we take negative frequencies while dealing with transforms, as we know that practically they are not measurable....

Voice recognition door lock system

Posted: 07 Mar 2011 05:06 AM PST

Hello friends,
I am thinking to implement a project illustrating the working of voice recognition door lock system.for this i want to use MATLAB for speech processing.i am not able to get any circuit diagram regarding this project.so please help me by giving the circuit diagram and also a basic idea about the code in MATLAB.

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