Technology (formerly Digidesign) used for music creation and production, sound for picture (sound design, audio post-production and mixing)and, more generally, sound recording, editing and mastering processes.Pro Tools can run as standalone software or operate using a range of external analog-to-digital converters and internal PCIe cards with on-board digital signal processors (DSP), used to provide additional processing power to the host computer to process real-time effects-such as reverb, equalization and compression-and to obtain lower latency audio performance.