updated UPGRADE.txt with format_wav GAIN change and plan to remove GAIN code from...

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@60568 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/UPGRADE.txt b/UPGRADE.txt
index 46bf90d06f7a92e544faa65cd12a23f4837a8d75..319a9fc6e6e2d428e364c17d6f0179e5d7947d72 100644 (file)
--- a/UPGRADE.txt
+++ b/UPGRADE.txt
@@ -449,3 +449,13 @@ API:
   have a module that uses the services provided by res_adsi, res_odbc, or
   res_agi, you will need to add ast_ prefixes to the functions that you call
   from those modules.
+
+Formats:
+
+* format_wav: The GAIN preprocessor definition has been changed from 2 to 0
+  in Asterisk 1.4.  This change was made in response to user complaints of
+  choppiness or the clipping of loud signal peaks.  The GAIN preprocessor
+  definition will be retained in Asterisk 1.4, but will be removed in a 
+  future release.  The use of GAIN for the increasing of voicemail messages
+  should use the 'volgain' option in voicemail.conf
+