I'm encountering a situation where, unless an interface is locked to a specific sample rate, the voicetracks are recorded such that they play at 0.5x The recordings play back perfectly in the recorder, but suffer this vari-speed problem when in radioboss. The files recorded play at the incorrect speed when played by other media players as well. While some interfaces make it easy to lock everything to a particular sample rate, others can be rather convoluted. I have this problem with both WASAPI and ASIO.