A/D conversion from analog phone to digital please help!!

Discussion in 'Embedded Systems and Microcontrollers' started by tuanvoi, Jan 28, 2009.

  1. tuanvoi

    Thread Starter Active Member

    Oct 31, 2008
    Hi all,
    I'm trying to do A/D conversion for a voice coming from an analog phone. Could you please give me some advice. Like, do I need an amplifier to amplify the analog signal coming from the phone? If so, please advice me some amplifiers. I will be doing this A/D conversion on PIC18F4550. Do you have any examples of voice to digital conversion of PIC? Thank you so much!