Added script to lower volume of sounds by 6db as requested by remaxim (might need...

git-svn-id: http://supertux.lethargik.org/svn/supertux/trunk/supertux@6636 837edb03-e0f3-0310-88ca-d4d4e8b29345

diff --git a/data/sounds/normalize.sh b/data/sounds/normalize.sh
new file mode 100755 (executable)
index 0000000..ef8a045
--- /dev/null
+++ b/data/sounds/normalize.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -e
+
+OUTPUTDIR="6db-less"
+
+mkdir "$OUTPUTDIR"
+
+for i in *.wav; do
+    cp -vi "$i" "${OUTPUTDIR}/${i}"
+    normalize-audio -g -6db "${OUTPUTDIR}/${i}"
+done
+
+for i in *.ogg; do
+    oggdec "$i" -o "${OUTPUTDIR}/${i%%.ogg}.wav"
+    normalize-audio -g -6db "${OUTPUTDIR}/${i%%.ogg}.wav"
+    oggenc "${OUTPUTDIR}/${i%%.ogg}.wav"
+    rm "${OUTPUTDIR}/${i%%.ogg}.wav"
+done
+
+# EOF #