I just bought an Acer "ultrabook" and I'm having the same problem. It took me awhile to find the device manager in Windows 8, but it had an option to update drivers automatically. It said they were all up to date, but the Audacity Wiki said Windows might use generic drivers, so I took the Wiki's recommendation to go to the website of the manufacturer for the most up-to-date driver. Device Manager listed Realteck High Definition Audio for the speakers, microphone and "sound, video & game controllers", so I went to the Realtek site
http://www.realtek.com.tw/downloads/dow ... Down=false . But it said:
Audio drivers available for download from the Realtek website are general drivers for our audio ICs, and may not offer the customizations made by your system/motherboard manufacturer. To be sure you obtain the full features/customizations provided in your original audio product, please download the latest drivers from your system/motherboard manufacturer's website.
I am not sure how to find who manufactured the motherboard, however. I don't see it listed anywhere in the device manager. Should I try using the Realtek "general drivers"? Or how would I find the site for the motherboard drivers.
I love using Audacity to record streaming audio... often sporting games I would miss otherwise. Any help recommendations would be appreciated.
Btw, is there some inexpensive way to connect a radio or stereo to input audio that could be recorded by Audacity. Some of the games are carried over the air, but are not streamed.