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Topic: Mic + Speaker REAL TIME talking ? Is this possible? (Read 450 times) previous topic - next topic

Rushdy

Dear community,

I was looking through the internet, but i could not find a proper answer for my question. That's why you are my last hope :)

Is there any examples that i can use my Arduino to Real time talk into a microphone and on speakers i can hear same message? I found a lot of talking in projects to blink a led, but i would like to have like a "telephone"

Thank you guys!


DVDdoug

Quote
...to Real time talk into a microphone and on speakers i can hear same message?
That's a PA system or a bullhorn and there's no need for a microcontroller.

...And, the Arduino isn't fast-enough for real-time audio.

Quote
...but i would like to have like a "telephone".
Again, land-line phones are mostly analog (you could use the Arduino to make the touch-tones for dialing).     Cell phones are very complex although you can get a GSM shield to do all of the "work".

ard_newbie

#2
May 18, 2018, 05:27 pm Last Edit: May 18, 2018, 05:34 pm by ard_newbie
You can sample ADC and output on a DAC using an arduino DUE at 44.1 KHz. You might also consider this tutorial for a bipolar ADC/DAC :

http://ardupiclab.blogspot.fr/2015/10/

or you can interface a CODEC in I2S (SSC peripheral) with an external ADC/DAC.

Grumpy_Mike

#3
May 18, 2018, 11:23 pm Last Edit: May 18, 2018, 11:23 pm by Grumpy_Mike
Quote
Is there any examples that i can use my Arduino to Real time talk into a microphone and on speakers i can hear same message?
Sure but you can do much more than that.


From chapter 15 of my book http://www.apress.com/9781484217207

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