weighting utility for training VQs

src/weight.c

@@ -0,0 +1,27 @@
+/*
+  weight0.c
+  David Rowe Feb 2019
+
+  Weight applied to first element of each vector, to test weighting of VQ.
+*/
+
+#include <assert.h>
+#include <stdio.h>
+#include <math.h>
+
+#define NB_BANDS 18
+
+int main(void) {
+    FILE *fin, *fout;
+    float v[NB_BANDS];
+    fin = stdin; fout = stdout;
+    int ret;
+    
+    while(fread(v, sizeof(float), NB_BANDS, fin) == NB_BANDS) {
+        v[0] *= 1.0/sqrt(NB_BANDS);
+        ret = fwrite(v, sizeof(float), NB_BANDS, fout);
+        assert(ret == NB_BANDS);
+    }
+
+    return 0;
+}