Creating Movies out of your Game Demos using Adobe Premiere
Recording Game Demo Sound
If you want to have the sound of game play in your final movie you will need to record the audio of the demos separately and synch them up later on in Premiere. You would do this by using windows built in Sound Recorder or another audio recording application like Sound Forge XP.
Multimedia Properties
Check to see that your sound card is set as the Record Device in the Multimedia Properties in Windows Control Panel. If it is not, you need to select your sound card from the list using the drop-down arrow next to the currect device. The photo below shows my Sound Blaster Audigy set as the recording device on my Windows XP system.
 
Recording Properties
Next check to make sure that the Wave device of your sound card is set to be recorded. Double click on the speaker icon in your system tray. Select Options - Properties. Then click on the recording button. Make sure there is a check in the box next to Wave. It might be a good idea to uncheck Microphone if you have a live microphone hooked up to your sound card.
 
Recording Game Sound
Next start the game in windowed mode, switch over to your sound recording application and start recording. Switch back to the game and run your demo. When the demo is over switch back to the audio application stop recording and save the file using an appropriate name like the name of the demo. You can later import this file into Premiere and sync it up on the timline with your demo footage.
Next Page
Converting Game Demos to Screenshots
Recording Game Demo Sound
Starting a Project in Adobe Premiere
The Adobe Premiere Workspace
Importing Files to the Project Window
Editing with Adobe Premiere
Adding Transitions
Adding Filters
Rendering Effects and Outputing DIVX Movie