The error "Data collection has failed: timed out attempting to connect to audio device" (or similar, e.g., "The USB audio processing unit is not connected or not responding") may be seen if the USB connection is unable to provide sufficient power. Many USB ports, especially on laptop and tablet size devices do not fully implement the power delivery of the USB 3.0 specification. The USB port must be capable of both data transfer and power delivery.
This error might also be seen if the host computer has other high-power equipment also connected via USB (e.g., ABR equipment).
We have tested that a host computer with a USB port with the following specification will support data collection on Mimosa's HearID/OtoStat Rev E APU hardware:
USB 3.1 Gen 1 Type-C (Power Delivery, DisplayPort, Data transfer)
We recommend avoiding devices that claim only
USB 3.1 Gen 1 (Data transfer only)
USB 3.1 Gen 1 (Sleep and charge)
When attempting to resolve this issue, try (a) a powered USB hub, (b) using a dedicated host computer for HearID.
We have not yet tested every possible USB configuration. Please add to this knowledge base if you have had experience (positive or negative) with specific USB configurations.