I'm using a Roku 2 XS to stream purchased episodes of Breaking Bad (HD 5.1 audio). All works well until I pause the playback with the Roku. With the Roku paused there is an extremely loud, intermittent buzzing noise from the right front 5.1 speaker. Putting the Roku into stereo mode eliminates this intermittent buzzing.
This problem only occurs when streaming from Amazon, never from Netflix 5.1 or any other audio or video source I have tried. Once again, the problem does not occur during playback, only when playback is paused at the remote. I can work around this issue by muting the audio before pausing, but I'm curious if anyone is experiencing this or has a solution.