int i,j;
double *f;
double *amp;
-
+
if(argc<2)usage();
- f=alloca(sizeof(float)*(argc-1));
- amp=alloca(sizeof(float)*(argc-1));
+ f=alloca(sizeof(*f)*(argc-1));
+ amp=alloca(sizeof(*amp)*(argc-1));
i=0;
while(argv[i+1]){
char *pos=strchr(argv[i+1],',');
-
+
f[i]=atof(argv[i+1]);
if(pos)
- amp[i]=atof(pos+1)*32767.;
+ amp[i]=atof(pos+1)*32767.f;
else
- amp[i]=32767.;
+ amp[i]=32767.f;
fprintf(stderr,"%g Hz, %g amp\n",f[i],amp[i]);
float val=0;
int ival;
for(j=0;j<argc-1;j++)
- val+=amp[j]*sin(i/44100.*f[j]*2*M_PI);
+ val+=amp[j]*sin(i/44100.f*f[j]*2*M_PI);
ival=rint(val);
- if(ival>32767.)ival=32767.;
- if(ival<-32768.)ival=-32768.;
+ if(ival>32767.f)ival=32767.f;
+ if(ival<-32768.f)ival=-32768.f;
fprintf(stdout,"%c%c%c%c",
- (char)(ival&0xff),
- (char)((ival>>8)&0xff),
- (char)(ival&0xff),
- (char)((ival>>8)&0xff));
+ (char)(ival&0xff),
+ (char)((ival>>8)&0xff),
+ (char)(ival&0xff),
+ (char)((ival>>8)&0xff));
}
return(0);
}