From ca762a30f18289d747f9187fdc51cab899a9d37e Mon Sep 17 00:00:00 2001
From: Petr Baudis <pasky@ucw.cz>
Date: Fri, 14 Sep 2012 22:42:32 +0200
Subject: [PATCH] equalizer: Fix loss of intensity in higher frequencies due to
 wider ranges

---
 host_python/equalizer.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/host_python/equalizer.py b/host_python/equalizer.py
index 687d7d8..b6e7264 100755
--- a/host_python/equalizer.py
+++ b/host_python/equalizer.py
@@ -127,6 +127,7 @@ try:
             i += 1
             freq += FREQ_STEP
         freq_limit *= PIXEL_FREQ_RANGE
+        freq_steps = 1
         pixel = 0
         count = 0
         volumes = []
@@ -136,9 +137,10 @@ try:
                 total += abs(fft[i])**2
                 i += 1; count += 1
                 freq += FREQ_STEP
-            volume = (total/count)**0.5/SAMPLE_SIZE
-            volumes.append(volume)
+            volume = (total/count)**0.5
+            volumes.append(volume/SAMPLE_SIZE*freq_steps)
             freq_limit *= PIXEL_FREQ_RANGE
+            freq_steps += 1
             pixel += 1
             count = 0
         for pixel in xrange(EPIXELS):