Ok, I did a search, and nothing useful came up.
After a while away from AH I tested out the arenas this evening and noticed a little issue when I tried to use my webcam's mic for voice. After releasing the transmit button, there's a little stutter, i.e. the game momentarily halts for a split second. I set the sound recording quality to the lowest setting, 16khz, but that made no difference. When I tested it out by transmitting to myself, the playback would sometimes repeat a chunk of the transmission.
The webcam is just a simple logitech C260, but the voice recording works fine with skype and other applications. Are there issues between webcam mics and AH, or any ideas about what might be the issue? Thanks.