BUGFIX: mistake in read_par_json concerning option VELOCITY

par/in_and_out/DENISE_INV_all_parameters.json

@@ -176,7 +176,8 @@
 			"FC_INCR" : "10.0",
 			"ORDER" : "2",
 			"ZERO_PHASE" : "0",
-			"FREQ_FILE" : "frequencies.dat",                       
+			"FREQ_FILE" : "frequencies.dat",  
+			"WRITE_FILTERED_DATA" : "0",                     
 
 "Minimum number of iteration per frequency" : "comment",
 			"MIN_ITER" : "0",

src/read_par_json.c

@@ -479,7 +479,7 @@ void read_par_json(FILE *fp, char *fileinp){
                     VELOCITY=0;
                     fprintf(fp,"Variable VELOCITY is set to default value %d.\n",VELOCITY);
                 }else
-                    if(ACOUSTIC)
+                    if(ACOUSTIC && VELOCITY==1)
                         err("For acoustic inversion option VELOCITY not available");
                 
                 if (get_int_from_objectlist("USE_WORKFLOW",number_readobjects,&USE_WORKFLOW,varname_list, value_list)){