OBS Studio 24.0

Record, mix, edit, and stream audio and video in realt-time.

Open Broadcaster Software Studio is an open-source program for video recording and live streaming. It comes with real-time video & audio capturing and mixing capabilities.

You can edit and set-up unlimited number of of scenes, which you can switch between via transitions. Its audio mixer gives you various filters such as noise gate, noise suppression, and gain; you can also add more features through VST plugins.