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voice processing with microcontroller

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hello friends
I like to study about voice processing and know how can we, for example, turn on an led or write sth on lcd by saying sth?
I think one way is to compare the voice with some voices which have been recorded before,and if they were the same that word been writen on lcd, or the number of led which we said turns on.
What is your idea?
Is it better to use PC softwares such as MATLAB,labview or directly use micro?
Which is easier?

Thanks in advance
 

surerly
first u want to do the voice recognition or processing in ur pC
matlab will be good tool to do that
once u have the idea how its work and once u did the simulation further u can implement it in micro controller
 
hi
For processing purpose matlab is bast tool
you will go with Signal processing tool of matlab it halp you lot.
than you connect your PC to UC via serial port to do what work you want to do.
 
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