Windows 7, like Windows Vista, requires the user to set the sample-rate for streaming audio. In contrast, Windows 2000 and XP simply streamed at the sample-rate inherent to the audio file and/or media player being used.
In our testing, we found evidence that Windows 7 converted the audio to the sample-rate that is set in the 'Properties' menu for the playback device, unless the rate is set to the sample-rate of the audio being played. However, the sample-rate conversion within Windows 7 performs extremely well, causing no detectable amounts of distortion (below -140 dBFS).
Unfortunately, certain computers seem to have trouble maintaining a steady USB stream when running Windows 7 (even computers that worked perfectly with XP and/or Vista). We have found that turning off the 'energy saving' options will reduce the amount of interruptions in the USB stream.
This article will guide you in properly configuring your operating system and media player.