hi
i need help with my project
my project must do the following

Automatic processing for realtime audio(human voice) with microcontroller (must eliminate noise ,feedback and echo,distribute sound equally over speakers )


{not intersting to store the signal so the memory is not important }
my instructor said that i dont need DSP because we dont need that whole processing and that microcontrololler will be enough for the project .

so what microcontroller do what i want

details:
there will be several microphones at different position

only the microphone that detect the strongest signal will enabled
and not to take signal from the others

the sound must processed automatically with microcontroller (not DSP )
to eliminate echo from speakers and suppressed noise.

notes
microphones & speakers are wire and wireless

can u help me with my project ...i want to understand it more .
any recommended microcontrollers ,topics, software,hardware
that would be great

if u know some projects similiar to this to get benifit from plz help
​

 

As you've been told before. You want a microcontroller with a DSP.
It's one of those things that if you have to ask you're probably in way over your head.
Since it's a school project your instructor should have something in mind.

 

Hello,

Since this is a school project, what have you done on the subject upto now?

I have here a linkpage on speechprocessing to help you:
http://www.educypedia.be/electronics/acousticsspeech.htm

Bertus

 

i found this at Microchip site

dsPIC30F

with those libraries
● Noise Suppression library
● Acoustic Echo Cancellation library
● Line Echo Cancellation library


is it good for what i want

is so..how i choose dspic30f.... there is a lot

i prefer some thing with ADC/DAC and USB

 

You said you didn't want a DSP. The dsPIC30F is a DSP microcontroller.

You choose the device you want according to the amount of memory you need for the code to do what you want and memory for the processing of the audio.

Microchip has a tool that helps you choose what you need. Try this:
http://www.microchip.com/productselector/MCUProductSelector.html

and

http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2629&param=en533465