#include?
#include?
#define?order??19????????????
#define?N??128???????????
#define?pi?3.14159265358979323846
float?fir[order]?=?{0.0011001972144790344?0.0031706769089487833?0.0086851716932748336
0.019681467092642617?0.036858999391910216?0.059032798265194759?0.083170213140458721
0.10504597910619377?0.12033857357910582?0.12583184721558274?0.12033857357910582
0.10504597910619377?0.083170213140458721?0.059032798265194759?0.036858999391910216
0.019681467092642617?0.0086851716932748336?0.0031706769089487833?0.0011001972144790344?};

float?s;
int?in;
float?input[N]output[N];??
int?fs=20000;???
int?f1=500;????
int?f2=2500;?

void?wavein（）
{
??for（n=0;n	input[n]=?sin（2*pi*n*f2/fs）+sin（2*pi*n*f1/fs）;?
}

void?main（）
{???int?p=0;
????????n=0;
?????wavein（）;???????????
	for（n=0;n	{???
	??????p=0;	
	??????s=0;
		while（（p		{
??????????????s=fir[p]*input[n-p]+s;??????
			??p++;
???		?}
???	???output[n]=s;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-12-16?14:08??FIR\
?????文件?????????719??2014-12-16?14:02??FIR\cc_build_Debug.log
?????目錄???????????0??2014-12-16?14:02??FIR\Debug\
?????文件?????????478??2014-12-16?14:02??FIR\Debug.lkf
?????文件???????????0??2014-12-14?14:23??FIR\Debug\declare_intf.log
?????文件????????1043??2014-12-16?14:02??FIR\Debug\fft.func_info
?????文件???????12495??2014-12-16?14:02??FIR\Debug\FFT.map
?????文件????????7381??2014-12-16?14:02??FIR\Debug\FFT.obj
?????文件???????44103??2014-12-16?14:02??FIR\Debug\fft.out
?????文件???????????0??2014-12-16?14:02??FIR\declare_intf.log
?????文件?????????847??2014-04-01?19:17??FIR\FFT.bak
?????文件????????1044??2014-12-16?14:08??FIR\FFT.c
?????文件?????????922??2006-10-13?10:52??FIR\FFT.cmd
?????目錄???????????0??2014-12-16?14:02??FIR\FFT.CS_\
?????文件????????3072??2014-12-16?14:02??FIR\FFT.CS_\FILE.CDX
?????文件?????????314??2014-12-16?14:08??FIR\FFT.CS_\FILE.DBF
?????文件?????????729??2014-12-16?14:02??FIR\FFT.CS_\FILE.FPT
?????文件???????20480??2014-12-16?14:08??FIR\FFT.CS_\SYMBOL.CDX
?????文件????????7134??2014-12-16?14:08??FIR\FFT.CS_\SYMBOL.DBF
?????文件???????11404??2014-12-16?14:08??FIR\FFT.CS_\SYMBOL.FPT
?????文件????????1595??2014-12-16?14:11??FIR\FFT.paf2
?????文件?????????807??2014-04-02?23:32??FIR\FFT.pjt
?????文件?????????292??2014-04-02?18:50??FIR\FFT.psp
?????文件????????2628??2014-12-16?14:11??FIR\FFT.sbl
?????文件?????1786710??2006-05-31?11:09??FIR\rts55.lib
?????文件?????????922??2014-12-15?09:57??FIR\volume.cmd