: Set your "Source" app (like a music player) to output to Line 1 .

: Windows may warn you about an unsigned driver. Click Install this driver software anyway .

: Use the Audio Repeater tool (included in the folder) if you also want to hear the audio through your speakers while it's being routed.

: Right-click setup.exe (or setup64.exe for 64-bit Windows) and select Run as Administrator .

If you have downloaded the 4.66 installer, follow these steps to get it running:

: Open the ZIP folder and extract all files to a folder on your desktop.

: Always reboot your computer after installation to initialize the virtual drivers. ⚙️ How to Route Your Audio

Are you trying to for a specific setup like streaming or podcasting?