<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2600.0" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>We are using Speex as our major codec for voice
application. We like
<DIV><FONT face=Arial size=2>the Speex solution so far. Currently,</FONT></DIV>
<DIV><FONT face=Arial size=2>We have tried to compare voice quality between
different </FONT></DIV>
<DIV><FONT face=Arial size=2>public available VOIP solutions such as Skype and
others.</FONT></DIV>
<DIV><FONT face=Arial size=2>We notice Skype use higher CPU for signal
processing. Is it</FONT></DIV>
<DIV><FONT face=Arial size=2>because of this extra work the audio quality sounds
clear?</FONT></DIV>
<DIV><FONT face=Arial size=2>(Sometimes, it sounds like the audio signal is not
real. </FONT></DIV>
<DIV><FONT face=Arial size=2>It sounds like Dolby-effect has been
added.)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>We are wondering </FONT><FONT face=Arial
size=2>whether we need to preprocess the audio </FONT></DIV>
<DIV><FONT face=Arial size=2>signal before it gets into Speex </FONT><FONT
face=Arial size=2>codec. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> Any comment is appreciated!!
Thanks in advance.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>kc</FONT></DIV></FONT></DIV></BODY></HTML>