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

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@60568 65c4cc65-6c06-0410-ace0-fbb531ad65f3
19 years ago · 42efff0d82
parent 762ed2a7ad
commit 42efff0d82
1 changed files with 10 additions and 0 deletions
--- 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
+