Revised Circuit Schematic

Since our group has elected to use an audio jack as our input signal for our circuit instead of the microphone with built in amplifying circuit, we have had to revise the circuit schematic we will use. Here is our revised circuit schematic. In this schematic, the audio signal is put through an Op Amp to amplify the signal to 5V peak to peak, then a DC offset circuit so that the signal is centered around 2.5V instead of 0V.

schematic2

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