I just learned this today and thought there would be other VoiceThread users who would appreciate knowing.
If you are a Mac user who also uses VoiceThread, you should be aware that the most recent version of Google Chrome (23.0.1271.64) has disabled the ability to record audio with with flash based applications (like VoiceThread). If you’ve noticed your voice or webcam comment sounding robotic or not working at all, this is likely the culprit. Switch to Firefox or Safari until the issue is resolved. There is no known issue with recording into flash when using Chrome on a PC that I’m aware of.
Cant seem to get it to work on Safari either…
Hi there. There are no conflicts with recording with flash on Safari that I'm aware of. If your issue persists, I encourage you to contact VoiceThread's support team at http://voicethread.com/contact/
Also, I confirmed with VoiceThread's support team that the most recent update of Chrome has resolved the flash recording issue on Macs.
Thanks for your comment! I hope this helps.