There are four plug-in formats supported by Pro Tools (AAX, TDM, RTAS, and AudioSuite), three of which can be used as real-time inserts, as follows:
Provide real-time plug-in processing using dedicated DSP processing with Pro Tools|HD systems. TDM plug-in files use the “.dpm” file suffix.
Provide real-time plug-in processing using host-based (“Native”) processing or DSP-based (“DSP”) processing (Avid HDX systems only). The AAX plug-in format also supports AudioSuite non-real-time, file-based rendered processing. AAX plug-in files use the “.aax” file suffix.
Provide real-time plug-in processing using host-based (“Native”) processing. RTAS plug-in files use the “.dpm” file suffix.
Provide non-real-time (rendered), file-based processing plug-ins for Pro Tools. AudioSuite plug-in files may use either the “.aax” or “.dpm” file suffix.
Depending on your Pro Tools software, real-time plug-ins can be used as follows: