UGreen USB external sound card (generic USB) input doesn't work

Hey everyone!

To try work around some sound issues in Ubuntu I recently bought one of these: https://www.ugreen.com/products/2-in-1-usb-external-sound-card

The audio output works just fine, but the input from the mic doesn't work at all.

An extracted portion from running the alsa-info.sh script:

    !!Soundcards recognised by ALSA
    !!-----------------------------

     0 [PCH            ]: HDA-Intel - HDA Intel PCH
                          HDA Intel PCH at 0x80788000 irq 167
     1 [Audio          ]: USB-Audio - USB Audio
                          Generic USB Audio at usb-0000:00:14.0-1.1.3, full speed


So it appears as though this USB device is being picked up as a generic USB audio module. According to the manufacturer it uses the ACL4030 chip from Realtek, but I can't find any info on this chip.

Diff from running usb-devices without and with the device plugged in:

63a64,73
> T:  Bus=03 Lev=03 Prnt=04 Port=02 Cnt=03 Dev#= 10 Spd=12  MxCh= 0
> D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=0bda ProdID=49b5 Rev=00.03
> S:  Manufacturer=Generic
> S:  Product=USB Audio
> C:  #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=100mA
> I:  If#=0x0 Alt= 0 #EPs= 1 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
> I:  If#=0x1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> I:  If#=0x2 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
>

Diff from running lsusb without and with the device plugged in:

> Bus 003 Device 009: ID 0bda:49b5 Realtek Semiconductor Corp.

Does the generic USB audio driver support recording/input? I'm happy to contribute towards the driver support if someone can point me in the right direction.

Any help would be greatly appreciated!
Thane