Speecheo is a cross-platform webapp (for now) allows to get all the key information people want to keep when they attend a live presentation (conference, lecture, meeting, etc… )
In one single click, the attendee is able to link to his notes slides and audio parts he wants (or video parts if existing), even if they've just passed.
Actually, we record all the audio session from the speaker's device or video from another one. The attendee puts his bookmarks on the contents he wants, one slide, one part of a slide, one part of the audio or video (last 3 min or next 5 one). After the event, all the bookmarks are synchronised with the recorded contents and the attendee gets his notes related to each key content he wanted.
Cause of the notes and bookmarks, we are able to report relevant informations to the speaker (or teacher) or organizer, like what are the moments and contents that interested the most.