Media
Another word for study group is "learning circle" or "study session".
"What is exact meaning of word editing in multimedia?" "What is exact meaning of word editing in multimedia?" "What is exact meaning of word editing in multimedia?"
Computers can be used for typing and word processing, database entry, photo editing, video editing, surfing the internet, communications, watching video / movies, playing games, 3D modeling and design, to control machinery, and as a web server.
Your video editing software should have an audio functionality. You can simply zero in on the timeline for the word and slice it out, or use an editing program like Wavelab to generate bleep tones that you can insert as a 'voice over' track in the video.
the study of plants
chameology
consider, speculate, observe, study
Snuff movie
This is known as Chronology.
To comprehend;study
editing
Recording is the act of, well, recording full motion images and sound and storing them. You could do this with a webcam. Also, rendering is the act of creating the videos after editing them in a video editing program. Maybe that is the word you are looking for?