Accessible Apps With Voiceover To Record And edit Videones On The Mac

Hello everyone. Does anyone in the community know of apps that all recording and editting Videos on the Mac accessibly with Voiceover? The one I'm looking for, I want it to have capabilities to record clearly from desk so that even those my teacher goes around but while he/she speaks the Mac will record the Voice clearly. Later I want the ability to edit the video accessibly as I write each part of the Video into my Notes along with editting parts where students speak up as well. Please reply as soon as possible. Thanks in advance.