In the latest release of Poodll (v2017110501) we have brought HTML5 audio recording to all major browsers. (The only exception is Internet Explorer ..). Apple had been holding out on us, but they came through. The chart below shows the state of HTML5 audio and video recording support in Poodll.
This makes Poodll:
the most advanced general purpose HTML5 recording system on the internet.
the system with the widest browser coverage.
the system with the deepest integration with Moodle.
NB. Right now you need to manually enable support for Safari on desktop devices. We felt it prudent to allow users to opt out on Safari because it does not offer the option to select the recording device.