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please check this code .. im getting error that frequency should be less than Fs/2....

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Mubasher
Mubasher 2012-5-10
clear; clc;
M=2^50;
freq_sep=100;
nsamp=6;
y=wavread('voice','native');
x=fi(y);
z=bin(x);
m=str2num(z); %#ok<ST2NM>
fsk_mod=fskmod(m,M,freq_sep,nsamp);
noise=awgn(fsk_mod,0);
fsk_demod=fskdemod(noise,M,freq_sep,nsamp);
[num,rate]=biterr(fsk_demod);
output=wavwrite('fsk_demod');
sound(output)

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采纳的回答

Walter Roberson
Walter Roberson 2012-5-10
wavwrite() requires a minimum of two parameters, and never returns a value.

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