I'm using the latest Windows 10 IoT Inisder Preview (Build 15026) on a DragonBoard 410c and trying to talk to Cortana. I've plugged in a USB microphone that's working fine with the Raspberry Pi (2&3) and which is also being recognized.
However, in the Web portal I see these devices as the default Audio Devices: Speaker: Speakers (QCAUD Real Time (WaveRT) Driver for Qualcomm SoC) Microphone: Internal Microphone (QCAUD Real Time (WaveRT) Driver for Qualcomm SoC)
How can I switch audio devices so the "Hey Cortana" keyword gets recognized?