PROTOOLS
Pro Tools
Pro Tools is a digital audio workstation for Microsoft Windows and OS X, developed and manufactured by Avid Technology. It is widely used by professionals throughout the audio industries for recording and editing in music production, film scoring, film and television post production, musical notation and MIDI sequencing. Pro Tools can run as standalone software, or operate using a range of external A/D converters and internal PCI or PCIe audio cards with onboard DSP.The above text is a snippet from Wikipedia: Pro Tools
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