Instructions
Navigate to the EditVoicepack website and download EditVoicepack 3.1.
Extract the zip file and install the software.
Launch EditVoicepack. You will notice a list of ATC sound files in WAV format.
Click the ̶0;File̶1; tab and select the ̶0;Update Voicepack̶1; option.
Check the box next to the Accelerate option and click ̶0;OK.̶1; The program updates the ATC voice speed and the progress appears in the ̶0;Accelerating̶1; window.
Click the ̶0;File̶1; tab and select ̶0;Save̶1; to save the voice settings.