Overview
Fundamentally, Pro Tools, like all Digital Audio Workstation software, is similar to a multi-track tape recorder and mixer, with additional features that can only be performed in the digital domain. It supports 16-bit.24-bit and 32-bit float audio at sample rates up to 192 kHz, and can handle WAV, AIFF, AIFC, mp3, WMA, and SDII audio files and QuickTime video files. It features time code, tempo maps, elastic audio, automation and surround sound capabilities.
The Pro Tools mix engine has traditionally employed 48-bit fixed point arithmetic, but floating point is also used in some cases, such as with Pro Tools HD Native. The new HDX hardware uses 64 bit floating point summing.
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