hi i want to design a circuit that performs as follows: a microphone gets the analog signal and then the signal is amplified using lm386 and then the analog signal is converted to digital with an arm microcontroller using A2D and then the signal is sent using a Bluetooth module and it should be received using a Bluetooth headset or a mobile phone. now my question is that can this be done with high quality using arm?
Sure it can be done - It's pretty much irrelevant whether you use ARM or any other microcontroller.
It is possible to design such kind of system. If the A2D (analog to digital) converter is not error-free then there will be some problem in the output signal. Analog to digital conversion should be done properly. A high-quality Bluetooth module is needed with wide bandwidth. Gather more knowledge about this on Facebook and youtube. you will also find some video there about this.
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