real variable data type values

Hi Everybody,

I am designing pre_emphasis filter for speech recognition system, when I simulate the module in ModelSim it work and give the right output, but I couldn't compile it in Quartus II because real variable data type values are not supported in verilog Quartus II.

This is the pre_emphasis filter code, I appreciate any suggestions to solve this problem.

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`define pre_emph_factor 0.975

module pre_emphasis ( in_samples, out_samples, clock, reset);

input clock, reset;

input [31:0]in_samples;

output [31:0]out_samples;

reg [31:0]prev_samples;

reg [31:0]out_samples;

always @(posedge clock or posedge reset)

begin

if(reset)

begin

out_samples <= 32'd0;

prev_samples<=32'd0;

end

else

begin

out_samples = in_samples -`pre_emph_factor * prev_samples;

prev_samples = in_samples;

end

end

endmodule