HE Instructor Knowledge Base URL: http://cmg.screenstepslive.com/s/MacmillanMedia/m/WriterKey_IM/l/526983-why-am-i-unable-to-record-voice-comments
The voice commenting feature of WriterKey requires the most recent version of the Adobe Flash plugin. Please ensure that you have installed this plugin prior to using this feature. You may test and/or obtain the plugin by visiting the Adobe Flash Player web page.
Another issue you may be confronting is that your browser may be requesting permission to use your microphone. This issue is common with Chrome. To resolve the issue, select, "Allow" to grant permission for the browser to use the microphone.