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USB PNP SOUND DEVICE WINDOWS 7 INSTALL
USB PNP SOUND DEVICE WINDOWS 7 DRIVERS
USB PNP SOUND DEVICE WINDOWS 7 UPDATE

This workaround was tested using Windows 7.1 (圆4), and Windows 10 (Version 22H2, 圆4).

USB PNP SOUND DEVICE WINDOWS 7 INSTALL

Updated 08/2023: To install the driver, extract the archive and right-click install the Cm108.INF file.Īfter installation and a reboot, a new Digital Audio (USB PnP Sound Device) device will show up in the Sound Settings dialog, alongside the old Speakers (USB PnP Sound Device) device.

USB PNP SOUND DEVICE WINDOWS 7 UPDATE

Using the Windows device manager, perform a manual driver update of the Generic USB PnP Sound Device, and select Win8\SoftwareDriver from the extracted archive as the driver installation sources directory. Please check the file for integrity and verify it includes the correct signed driver binary before installing. I uploaded the latest signed driver package I could source (Version 8.) as release v0.1.5-driver-only.

USB PNP SOUND DEVICE WINDOWS 7 DRIVERS

Updated 08/2023: Unfortunately, the ASIC manufacturer have stopped providing any drivers for download.

Workaround: A vendor-specific Windows driver package for the CM108AH is available for download from the ASIC manufacturer's website. Volume control and the mute input are inoperative when using the default driver package (see below for workaround).

Generic Audio Device drivers included in Windows 7.1 (圆4) as well as Windows 10 (Version 22H2, 圆4) only support S/PDIF output in a passthrough mode.

Drivers included with SteamOS 3.0 provide full functionality out-of-box, including volume controls for S/PDIF output.

Parts U1 (AT93C46D), U2 (CM108AH), SW1, and both connectors were unavailable for automated assembly, and had to be retrofitted manually using hot-air reflow soldering.

Manual rework of the PCB around U3 (SRV05-4) was required in order to fix the issues found in rev.

3 board design files, in a minimum-order batch of 5 PCBs, including automated assembly. Low PCB production capability requirements ICs leaded and no smaller than 0.5mm pin pitch (SSOP) KiCad)Ĭommonly-used, small form-factor USB connector, robust enough to withstand portable use Use of free, open-source EDA tooling (e.g. USB Audio Device Class using OS-provided generic drivers TOSLINK™)Ĭompatibility for wide range of operating systems, with minimal driver maintenance Provide electrical isolation between device and audio equipmentĪudio signal transmission via optical link (e.g. Audio tranmission via optical link - as opposed to a wired line-level connection - eliminates hum caused by ground potential differences, and noise feed-through from switched-mode power supplies. This USB audio interface provides a low-cost S/PDIF optical output for portable computers and tablet devices.

USB Audio Device Class 1.0, uses generic drivers.

2.0 Stereo, up to 16-bit/48kHz (CD-DA equivalent).Production files will be made available on the Releases page, once validation is complete. A low-cost USB audio interface with S/PDIF optical output, based on the Cmedia CM108AH ASIC.