I downloaded & installed it by running "Setup.exe", everything seemed good. But when I checked the voice, nothing happened. I think the audio system went down.
So I found "UnInstallPath="Software\Microsoft\Windows\CurrentVersion\Uninstall\SpeexACM""
this line in "SpeexACM.inf", followed it in the regedit table, found the uninstall instruction and ran "rundll32" to uninstall. It seemed uninstallation worked well.
But after that still the voice didn't come up! Anyone can tell me what to do next?