If you cannot get the launcher to work, there are two other options:
This is the most common question.
The NoCableLauncher is a software patch that modifies the game's memory at runtime to trick it into recognizing non-official audio inputs as a Real Tone Cable. It is primarily used by PC players who want to avoid the cost of an RTC or utilize existing studio gear for better audio fidelity. How to Install and Use NoCableLauncher Setting up the launcher typically involves these steps: rocksmith nocablelauncher
;InputDeviceName=Microphone (Realtek Audio) If you cannot get the launcher to work,
Open nocablelauncher.ini with Notepad.