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Showing results for tags 'usb audio 2.0'.
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The latest Microsoft Windows 10 Creators Update (a.k.a. Redstone2 or RS2) includes a new USB Audio 2.0 class driver, usbaudio2.sys. This driver is an alternative to supplier-provided drivers for USB DACs. I've tried running a few of my USB DACs with this OS and driver and they all seem to work properly, though unlike many supplier-provided drivers, the MS USB Audio 2.0 class driver does not appear to expose any user controls, such as buffer size. When running a USB DAC with this inbox driver, I noticed there is an extra USB endpoint device, typically named "<DAC name> DFU". For example, with my Cambridge Audio DACMagic XS, a "CA DFU" device shows up in Device Manager with a yellow bang. I'm pretty sure this is a USB endpoint intended to support firmware updates (DFU = device firmware update) and can be safely ignored, though having a perpetual yellow bang device in Device Manager is a nuisance. I have yet to do sonic comparisons between supplier-provided driver and this MS inbox USB Audio 2.0 class driver for the same DAC HW, but hope to get to this soon.