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===Set up WebCam Microphone for Audio Recording Screencast===
:Since there may be several input devices connected to the computer system, never assume that the recording input device is the WebCam. We need to check and if possible, change the sound settings on the computer system to select the WebCam as the audio recording device. It is recommended for this simple type of audio recording using Audacity to set the input device from computer's "Sound Preferences". Below is the procedure to select the default input device for operating system under "Sound Preferences":
:Go to the '''main menu''' and select: '''PREFERENCES''' -> '''SOUND'''
:In the "Sound Preferences" dialog box, click the Input tab, and select LifeCam Cinema Analog Mono by pointing and clicking on the radio button. Refer to diagram on the right to confirm. When finished, click the CLOSE button.
===Launch gtk-recordmydesktop===