This is how to set up Voicemod on GTA Online:

• Voicemod has to be open to feed the virtual microphone so open Voicemod.
• Once your game is running press the Esc key to show the menu.
• Select the Settings tab.
• Go to Voice Chat on the left menu. You need to change your input device to Voicemod Virtual Audio device.
• Ready to go. Set your microphone sensitivity up!
• Done!

*Do not use the Voicemod Virtual Audio device as the output (headphones), we need it internally as an audio bridge to make all this work.

Through this output, you will hear the transformed voice if Voicemod is open, but not the rest of the sounds coming from games or other applications. 

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