mirror of https://github.com/saitohirga/WSJT-X.git
43 lines
1.1 KiB
Fortran
43 lines
1.1 KiB
Fortran
program sumsim
|
|
|
|
! Sum a number of *.wav files so that multiple signals are present
|
|
|
|
use wavhdr
|
|
parameter (NMAX=60*12000)
|
|
type(hdr) h !Header for the .wav file
|
|
integer*2 iwave(NMAX) !i*2 data
|
|
real wave(NMAX) !r*4 data
|
|
character*80 fname
|
|
|
|
nargs=iargc()
|
|
if(nargs.lt.1) then
|
|
print*,'Usage: sumsim file1 [file2, ...]'
|
|
go to 999
|
|
endif
|
|
wave=0.
|
|
|
|
do ifile=1,nargs
|
|
call getarg(ifile,fname)
|
|
open(10,file=trim(fname),status='old',access='stream')
|
|
read(10) h
|
|
npts=h%ndata/2
|
|
nfsample=h%nsamrate
|
|
read(10) iwave(1:npts)
|
|
n=len(trim(fname))
|
|
wave(1:npts)=wave(1:npts) + iwave(1:npts)
|
|
rms=sqrt(dot_product(wave(1:npts),wave(1:npts))/npts)
|
|
write(*,1000) ifile,npts,float(npts)/nfsample,rms,fname(n-14:n)
|
|
1000 format(i3,i8,f6.1,f10.3,2x,a15)
|
|
close(10)
|
|
enddo
|
|
|
|
! fac=1.0/sqrt(float(nargs))
|
|
fac=1.0/nargs
|
|
iwave(1:npts)=nint(fac*wave(1:npts))
|
|
|
|
open(12,file='000000_0000.wav',access='stream',status='unknown')
|
|
write(12) h,iwave(1:npts)
|
|
close(12)
|
|
|
|
999 end program sumsim
|