PowerPoint is not receiving sound from the microphone. Try one of the following and then try to set the microphone recording ...

PowerPoint is not receiving sound from the microphone. Try one of the following and then try to set the microphone recording level again.   *In Control Panel (Windows Start menu, Settings submenu), double-click Multimedia. On the Audio tab, check the Recording settings.   *On the Language Bar, click on the microphone button to turn off Office speech recognition.