On Friday 14 December 2007 00:41:18 John Fawcett wrote: > I've have installed a new Asterisk 1.4.15 system after having previously > used a 1.2 CVS head (from 10 Sep 2005). Both systems are pentiums though > the newer one is actually a slower processor. > > On the new system, playback of gsm files is noticeably poorer (voice > quality is flakely) on any connected phone (sip or isdn, internal or > external). > > Prompts recorded in sln are very clear quality as are voicemail recorded > in wav. Call quality is also good. > > "core show translation" show "gsm=>other format" times are similar to > old system. > > what could be the reason for the poor performance of gsm? How could I > investigate it?
gcc 4.2 has a bad optimization that has yet to be tracked down, which causes the transcoding code to be incorrectly built. There are two workarounds for this problem: either use gcc 4.1 or enable the DONT_OPTIMIZE compiler option in 'make menuselect'. -- Tilghman _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
