![]() After the device-specific driver is installed, Windows 10 will select that driver instead of the standard USB audio 2.0 driver when you first connect the device. ![]() If the device is not yet connected, first install the device-specific driver, such as by using the appropriate installer. For more information about how to do this, see update drivers in Windows 10. If the device-specific driver is distributed through Windows Update, you can manually update the driver by using Device Manager. To resolve this issue, install update 4022716. To fix this issue, use one of the following methods. This issue also causes Windows 10 Version 1703 to postpone the search for other compatible drivers through Windows Update that typically occurs immediately after you install a new device. Therefore, the system assumes that a compatible, nongeneric driver is installed for the device even though the driver is generic. This issue occurs because the USB audio 2.0 driver (usbaudio2.sys) isn't classified as a generic driver in Windows 10 Version 1703. When you connect a USB audio device to a Windows 10 Version 1703-based computer the first time, the operating system detects the device but loads the standard USB audio 2.0 driver (usbaudio2.sys) instead of the specific device driver. All of the driver components shown in the figure are provided by Microsoft with the operating system.This article helps to fix an issue in which Windows 10 doesn't install specific drivers for USB audio devices on the first connection.Īpplies to: Windows 10, version 1703 Original KB number: 4021854 Symptom This name will be overwritten with a USB product string, if it's available. The driver will identify in device manager as 'USB Audio Class 2 Device'. The driver is named: usbaudio2.sys and the associated inf file is usbaudio2.inf. The following figure shows the driver hierarchy for a USB audio device. The driver is a WaveRT audio port class miniport. In addition, Windows Me and Windows XP support USB MIDI but do not support USB MIDI Elements. In Windows Me, and Windows XP and later, USBAudio supports all the features that are supported in Windows 98 SE and Windows 2000. In Windows 98 Second Edition (SE), Windows Me, and Windows 2000 and later, USBAudio supports all the same features as Windows 98, with one exception: USBAudio supports WAVEFORMATEXTENSIBLE but does not support packed WAVE_FORMAT_PCM for 24-bit data. WAVEFORMATEXTENSIBLE wave format (USBAudio uses packed WAVE_FORMAT_PCM for 24-bit data instead.) However, USBAudio in Windows 98 does not support: Synchronization types synchronous and adaptive In Windows 98, the USBAudio driver supports the following features:Īll Type I formats (except 8-bit signed PCM) Microsoft recommends that hardware vendors use the USBAudio driver for their USB Audio devices instead of writing proprietary adapter drivers. This means that a device that complies with the USB audio specifications requires no proprietary adapter driver. USBAudio drives the device directly, without the aid of a proprietary adapter driver. When an audio device identifies itself as USB Audio-compliant during Plug and Play device enumeration, the system automatically loads the USBAudio driver to drive the device. Support for MIDI devices was added in Windows Me. In Windows 98 Usbaudio.sys introduced support for USB devices such as speakers and microphones. For more information, see Kernel-Mode WDM Audio Components. In addition to Usbaudio.sys, there are several other kernel-mode audio components in the Windows Driver Model (WDM). Usbaudio.sys supports a subset of the features that are described in the USB Audio specification. The USB Device Class Definition for Audio Devices specification (release 1.0) is available at the USB Implementers Forum website. The USB Audio class system driver (Usbaudio.sys) is an AVStream minidriver that provides driver support for audio devices that comply with the Universal Serial Bus (USB) Device Class Definition for Audio Devices.
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