SOLVED IN MATLAB

Develop a filter that allows filtering an audio file with two or three recorded voices establish the modulation, coding and digitization of the signal both in reception and in transmission

Procedure: 1). Record an audio file with the talk of two or three people 2) .- Use the software, Matlab, Multisim, Labview or Simulink 3) .- Develop a filter that allows you to filter the voices to obtain only one output. 4) .- Once the signal of a single voice has been filtered, implement a coding. 5) .- Establish a QPSK modulation, or QUAM of 3 or 4 bits 6) .- Convert the analog signal to digital. 7) .- Transmit it and carry out the reverse process at the reception.