[lionheart1066]

Location of config file: addons/sourcemod/configs
Name of config file: voicechanger.cfg

"voicechanger" // Do not touch this
{
    "models/player/pyro.mdl" // Filepath to the specific model that would be equipped
    {
        "pyro_jeers" // This example searches for a specific type of VO lines that we want to replace (This is more useful if you have lots of lines to use)
        {
            "1"    "vo/pyro_jeers01.mp3" // Sound file that we want the model to use instead of the targeted sound files
        }

        "pyro_" // This example searches for all VO lines used by Pyro that we want to replace, this is also used last if you want to replace specific sounds first and then cover all the rest with a generic sound
        {
            "1"    "vo/pyro_jeers01.mp3" // Sound file that we want the model to use instead of the targeted sound files
        }

        "pitch" "150" // Adjusts the pitch of the players voice lines
    }
}

Example custom models to use.
MBA Astronaut by Vincentor