Jack is a utility to record video streams, calls, meetings or online courses and video with the original system sound.
With Jack you can record your screen, microphone and system sound (speakers audio).
If you want to record a meeting, choose to record your microphone (your voice) and the system sound.
If you want to record an online presentation or video, choose to ignore your microphone and record only the system sound.
Updated on Aug 31 2022