Record Computer Screen with Sound
DemoCreator enables users to create narration-based software presentations with ease. Here we will learn how to use DemoCreator's advanced audio capabilities to add and edit audio in your movies. This screen recorder provides 3 ways to add the audio to the screen recordings:
Record sound at capture time
Record the onscreen activity and voice-over narration at the same time.
- Launch DemoCreator and select the recording area and recording mode, before you start your screen recording you can also do the audio settings to record narration for your video demo.
- There are 3 audio sources to choose: Microphone, Stereo Mix, and Rear Input, . Select Microphone as the audio recording device if you want to record what you say; if you want to record what you hear from the computer or speaker, you may select PC speaker as the recording source; if you want to record some audio from some other resource, connect the audio device with the Rear Input port and set the audio recording option as Rear Input.
- By clicking on the Microphone icon, you can go to test the audio recording device to check out that it works or not.
- If there is no problem with the recording device, click Record button and start your recording.

For microphone: Speak to the microphone and you will see the audio sensitivity level if the recording device works.
For PC speaker: Play a piece of music on your computer and you will see the audio sensitivity level if the recording device works.
Note: Most screen recorders enable users to record the computer screen with audio. However, the sync of the audio and video is really a big problem. As the video and audio tracks are not separate from each other, cropping a video clip in the timeline also means chopping off your narration along with it. That would not be what you want. Or if your recorded video is fine, but there is something wrong with your narration, you have to restart your narration and screen recording until you got it right. So, the feature of recording the narration after screen recording can be an effective solution to make compelling screencast.
Record sound at preview time
If you are not satisfied or you need to make some changes with the audio you have recorded along with your screen recording, you can rerecord the audio while previewing the recorded screencast in the built-in audio editor.
- Click the Audio button and you can go to the audio editor.
- Before your audio recording, you can click the Settings icon to select and test the audio device.
- Select the segment of the slides you want to record narration to, and click on the Record button at the bottom of Audio Editor and you can start your audio recording. To make your narration sync with the movie, you can view the recorded movie synchronously and do the narration.
- When it is over, press the Stop button.
- Click the Play button to view the recorded movie with audio. Further more, you can modify the narration with editing tools(like delete and insert silence) on the audio editor.


Import audio file with audio editor
Besides the two methods mentioned above, you can import audio file to the screen recording as background music.
Back to the audio editor, there is an Import button for you to add the wanted music file from you local disk.
When the recording is over, you can find the audio file of MP3 format in the project folder.
So, just create your voice-over narration screen recording with DemoCreator!

















