no sound on video for Webcam Booth

[kat]

Hi, I have Linux-Lite 5.0 and downloaded Webcam Booth from the Lite Software source. The Webcam Booth (Cheese) takes pics and videos well, but there is no audio in the videos. When I open the video file, it opens with VLC media player. I made sure in VLC tools that audio was enabled. What could be the problem? I have a built in webcam on my pc. I know my mic works, because in the audio mixer, I can see the blue line moving when I speak in the microphone setting.