# HG changeset patch
# User Chris Cannam <c.cannam@qmul.ac.uk>
# Date 1382609898 -3600
# Node ID 0106107cb972a51157b1570f7f8e9ea41e36df52
# Parent  f5379a70fc3786c52eb2484f3482d3273f84fdc2
Another minor few sums...

diff -r f5379a70fc37 -r 0106107cb972 yeti/cqtkernel.yeti
--- a/yeti/cqtkernel.yeti	Wed Oct 23 17:31:04 2013 +0100
+++ b/yeti/cqtkernel.yeti	Thu Oct 24 11:18:18 2013 +0100
@@ -1,7 +1,7 @@
 
 module cqtkernel;
 
-{ pow, round, nextPowerOfTwo } = load may.mathmisc;
+{ pow, round, floor, ceil, nextPowerOfTwo } = load may.mathmisc;
 
 fs = 48000;
 
@@ -33,5 +33,18 @@
 
 println "fmin = \(fmin), bigQ = \(bigQ), nk_max = \(nk_max), nk_min = \(nk_min), atomHop = \(atomHop), first_center = \(first_center), fftLen = \(fftLen)";
 
+winNr = floor((fftLen - ceil(nk_max/2) - first_center) / atomHop) + 1;
+
+last_center = first_center + (winNr - 1) * atomHop;
+
+fftHop = (last_center + atomHop) - first_center;
+
+fftOverlap = ((fftLen - fftHop) / fftLen) * 100; // as % -- why? just for diagnostics?
+
+println "winNr = \(winNr), last_center = \(last_center), fftHop = \(fftHop), fftOverlap = \(fftOverlap)%";
+
+
+
+
 ();