Hi Mike,
I cannot confirm that anything you mention needs to be fixed.
You mention file 'constants.h', which does not exist. I think you must
mean 'constants.f90'.
File constants.f90 defines the constant NMAX to have the value
30*60*12000 -- the size necessary to hold 30 minutes of data samples at
12000 samples per second.
File jt9com.f90 then allocates storage for this many samples in array
id2(NMAX) -- just as required.
I do not understand your comment about "his WAV file". What file is
this? And what leads you to suggest that NSMAX=6827 is an incorrect value?
-- 73, Joe, K1JT
On 9/27/2022 5:14 PM, Black Michael via wsjt-devel wrote:
I think this needs to be fixed -- seems lib/jt9com.f90 got out of sync
with constants.h
His WAV file also shows that NSMAX may need to be increased to 6912
diff --git a/lib/constants.f90 b/lib/constants.f90
index 36e81c77b..4f39e1aba 100644
--- a/lib/constants.f90
+++ b/lib/constants.f90
@@ -3,3 +3,4 @@
integer, parameter :: NDMAX=NTMAX*1500 !Sample intervals at 1500 Hz rate
integer, parameter :: NSMAX=6827 !Max length of saved spectra
integer, parameter :: MAXFFT3=16384
+ integer, parameter :: RX_SAMPLE_RATE=12000
diff --git a/lib/jt9com.f90 b/lib/jt9com.f90
index 5b2970c05..b653bba75 100644
--- a/lib/jt9com.f90
+++ b/lib/jt9com.f90
@@ -54,6 +54,6 @@
real(c_float) :: ss(184,NSMAX)
real(c_float) :: savg(NSMAX)
real(c_float) :: sred(5760)
- integer(c_short) :: id2(NMAX)
+ integer(c_short) :: id2(NTMAX*RX_SAMPLE_RATE)
type(params_block) :: params
end type dec_data
Debug output where nsps=6912
Starting program:
C:\JTSDK64-Tools\tmp\wsjtx-output\qt\5.15.2\2.6.0\Debug\install\bin\jt9.exe
-9 -b G -f 700 -F 300 \Users\mdbla\Downloads\220926_104120.wav
[New Thread 23484.0x628c]
[New Thread 23484.0x6ce4]
[New Thread 23484.0x55c8]
[New Thread 23484.0x6bf8]
Thread 1 received signal SIGSEGV, Segmentation fault.
0x000000000041466a in symspec (
shared_data=<error reading variable: value requires 48338160 bytes,
which is more than max-value-size>, k=6912,
trperiod=2.1219957909652723e-314, nsps=6912, ingain=0,
blowsidelobes=.FALSE., nminw=1, pxdb=0, s=...,
df3=8.59003392e+09, ihsym=0, npts8=0, pxdbmax=0,
npct=<error reading variable: Cannot access memory at address 0x0>)
at C:\JTSDK64-Tools\tmp\wsjtx\lib\symspec.f90:40
40 if(TRperiod+npct.eq.-999.9) stop !Silence compiler
warning
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