Mac users interested in Voodoohdasettings tool generally download:
VoodooHdaSettingsLoader - Application to save/restore VoodooHDA settings.
VoodooHdaSettingsLoader loads VoodooHDA.settings, does
some consistency checks, and send the settings back to the driver. You just have to put the app in your startup applications in your account configuration, and your VoodooHDA settings will be restored on startup.