Depending on your Pro Tools audio interfaces, you can connect different types of sound sources (such as musical instruments, mics, and mixer outputs). See the User Guide for your Pro Tools system. For additional information, see the documentation that came with your sound source.If you connect a sound source to a Pro Tools input that was not previously configured to accept input, you may need to reconfigure you hardware in the Hardware Setup dialog (see your User Guide). You may also need to reset your I/O signal paths in I/O Setup (see I/O Setup.).