Headset Microphone on Soundblaster 3 sound card not detected

I am using Audacity 3.1.3 and trying to record microphone audio on an Asus Sonicmaster Windows 11 laptop using a a headset plugged into a Soundblaster Play! 3 sound card plugged into a USB port. Audacity shows Speakers( Soundblaster Play!3) as a speaker option, which works, but does not show a similar option for Microphone. The only microphone option is the built in Realtek (R) Audio. Recordings from this have a high level of background sound. NCH Debut Video capture detects the headset mic OK .when using the sound card.

Update: on a different machine, Audacity 3.6.4 does show Soundblaster options for the microphone so the problem might be with the ASUS laptop.

Turns out microphone on Soundblaster was disabled. Audacity working fine for recording using it now.