Record audio or video for embed within annotation

This would enhance Hypothesis "capabilities" within annotations. Several of our competitors in the social annotation space have this functionality.


In addition, there are adjacent services like [VoiceThread](https://voicethread.com/products/highered/) in the edtech space that are based in this kind of interaction--the recording of visual or audio media as a form of commentary instead of just text composition.

Among other things, this additional multimedia capability could be argued to support diverse learners )as not everyone is most comfortable in text).