A: Only for legacy FireWire devices (ADVC). Modern GV hardware requires Windows. For Mac workflows, you must use Boot Camp or Parallels with PCIe passthrough (not recommended).
A: Yes. Add a new Audio Input Capture source. Select GV Audio (WDM) from the device list. If it doesn't appear, run OBS as administrator.
→ No driver exists. Fix browser/OS audio permissions. gv audio driver
Visit the Official Portal: Always download drivers directly from the Grass Valley Support Portal or the Grass Valley Desktop web page to avoid malware.
pw-cli list-objects Node | grep -A5 "node.name" A: Only for legacy FireWire devices (ADVC)
| Issue | Driver-level fix | |-------|------------------| | Phone not detected as USB audio | Reinstall driver, then in Device Manager → Action → Scan for hardware changes. | | Mono sound only | Grandstream USB audio is mono by default (for handset). Edit registry: HKEY_LOCAL_MACHINE\SOFTWARE\Grandstream\USB Audio\Channels → DWORD=2. | | High latency (≥50ms) | Replace driver with generic ASIO4ALL; or modify inf file: add AddProperty = PKEY_Device_BufferSizes, 0x00000002, 128 |
Device Descriptor: VID 0x1B3F (Grandstream), PID 0x0019 bDeviceClass: 0xEF (Miscellaneous) bNumConfigurations: 1 → Audio 1.0 standard A: Yes
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