When changing WDM sample rates: Set the sample rate in the Apollo Console Settings>Hardware panel before changing sample rates in the Sound>Playback or Sound>Recording control panels within Windows.If the ASIO and WDM sample rates are not the same, audio from one or more programs will not be heard correctly. All sample rate values in ASIO DAW programs and WDM audio programs must be set to the same sample rate. To ensure proper audio system functionality, follow these guidelines when using a Thunderbolt Apollo as the audio input and/or output device for Windows WDM system audio.