Light Lecture Recorder 4+

This app can record your voice and gestures during the lecture. Only a PDF file is needed. Data size is extremely light, and students can play the data offline at home.

Light Lecture Recorder allows you to create lecture (or presentation) data from a PDF file.
During the lecture, your voice and gestures such as pointing to important parts are recorded, and the data can be replay with another app "Light Lecture".

Most importantly, the size of the lecture file created is very small compared to a video file recording the actual lecture. The contents is just a set of audio files and a PDF. For example, the size of data recording a 45-minute lecture is only 10 MB including 30-page of PDF.

You can also edit the lecture data. You can delete selected parts, and insert a new record at a specified position in units of slide switching. It's much easier than editing raw audio or video data. Teachers can efficiently record their lectures at home without strain.

The same content as lecture data can also be exported as video data, making it possible for people without Macs to view the lectures.