It offers a well-designed interface and an intuitive recording process that allow you to quickly handle the software. You can also use it to record audio only. It can help you record everything with internal and external sound on Windows PC, including video calls, online meetings and classes, gameplays, and streaming videos.
And I’d recommend you use WonderFox HD Video Converter Factory Pro's built-in screen recorder. So you can try to use another screen recorder to start your screen recording with audio if there is no sound when recording audio on Windows 10 with your recorder.
Sometimes the screen recorder not recording audio might be caused by the screen video and audio recorder in use, not the problem with your PC.