16th LSI Design Contests・in Okinawa  Design Specification - 2

2. Implementation of the Noise Cancelling System

  • Noise Cancelling System overview
  • The Noise Cancelling System should adapt in some situations and perform in real time with high quality. Various Noise Cancelling Systems are proposed today. When this system is implemented in many kinds of terminals, flexibility and real time processing are needed to adapt to changes in the environment.

  • Implementation Environment
  • Board : ATLYS by DIGILENT co.

    FPGA :Xilinx SpartanR-6 LX45 FPGA in a 324-pin BGA package

    Operating frequency:100MHz

    Audio :AC97 Audio Codec

    Sampling frequency:48kHz

    FFT Points:64

    Figure 3

    Figure 3