Chrome: Sound Start-up Lag in Lessons/Practices

[DXLi]

Is anyone else having an issue with the sound input and output at the beginning of each lesson or practice? On both my computers with Chrome, there's a 5-second lag between when the lesson begins and when Duo will speak a sentence or accept speech input. During that lag, there's no sound or the "record" button doesn't bring up the sound monitor. I'm using Chrome version 29.0.1547.66 m on Win 7 on two different computers, and I don't get the issue in IE. I've tried running it in Incognito Mode to disable extensions.