Reduce amplitude of p(r)

git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@101 d46cf337-b52f-0410-862d-fd96e6ae7743

phsource/phonemes

@@ -882,7 +882,7 @@ phoneme p
   lengthmod 2
   wave ustop/p
   before _ ustop/p_
-  before r ustop/pr
+  before r ustop/pr%70
   before R ustop/pr
   before @- ustop/p_unasp
   before l ustop/pl