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Format

Pro Tools Session File

Summary

Name
Pro Tools Session File
Version
10+
Identifiers
PUID: fmt/1727
Format type
Text (Structured)
Description
File created every time a user sets up a session in Pro Tools, music creation software made by Avid, which allows the user to create, record and mix music. Every time a session is started, a ptx file is created, containing all plug ins, audio and midi tracks and mixer settings. They do not contain actual audio, but have audio files linked to them.
File extensions
ptx
Submitted by
National Library of New Zealand / National Library of New Zealand
Developed by
Avid
Supported by
Avid

Internal signatures

Pro Tools Session File 10+

Description
BOF Absolute from beginning of file, magic bytes:.0010111100101011{3}Z…
Provenance
04/2024 (v.117)- Signature name updated to include version number 10+. Submited by Preservica.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
0330303130313131313030313031303131{3}5A010004
Endianness
None

Changelog

  • V118

    Release date
    30 April 2024
    • Updated

      Pro Tools Session File 10+: Version number changed from 10 onwards to 10+ and signature name updated to include version number 10. Submitted by Preservica.

  • V108

    Release date
    5 September 2022
    • Updated

      Pro Tools Session File: Amended description of byte sequence to match bytes. Submitted by Digital Preservation Department, The National Archives (UK).

      Pro Tools Session File: Changed signature to accomdate a wider variety of ptx files. Submitted by The Church of Jesus Christ of Latter-day Saints.

  • V107

    Release date
    21 July 2022
    • Added format

      Pro Tools Session File: Full entry added. Submitted by National Library of New Zealand.

    • Added signature

      Pro Tools Session File: Signature researched and samples provided by National Library of New Zealand.