Description: Achieved using the Verilog HDL code using WM8731 audio sampling, and use ALTERA FPGA to achieve the calculated spectrum (FFT), shows the spectrum on VGA.
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File list (Check if you may need any files):
audio_fft_vga
.............\AUDIO_DAC_FIFO.v
.............\AUDIO_FFT_VGA.qpf
.............\AUDIO_FFT_VGA.qsf
.............\AUDIO_FFT_VGA.v
.............\Audio_PLL.ppf
.............\Audio_PLL.qip
.............\Audio_PLL.v
.............\CFFT
.............\....\address.vhd
.............\....\blockdram.vhd
.............\....\cfft.vhd
.............\....\cfft1024X12.vhd
.............\....\cfft4.vhd
.............\....\div4limit.vhd
.............\....\mulfactor.vhd
.............\....\p2r_cordic.vhd
.............\....\p2r_CordicPipe.vhd
.............\....\rofactor.vhd
.............\....\sc_corproc.vhd
.............\FIFO_16_1024.qip
.............\FIFO_16_1024.v
.............\I2C_AV_Config.v
.............\I2C_Controller.v
.............\MDELETE.bat
.............\mult.qip
.............\mult_add.qip
.............\mult_add.v
.............\RAM_DUALPORT_1024X16.qip
.............\RAM_DUALPORT_1024X16.v
.............\Reset_Delay.v
.............\SRAM_16Bit_512K.v
.............\VGA_Controller.v
.............\VGA_Param.h
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