OpenTL Files

OpenTL is a file exchange format originally developed for Tascam hard disk recording systems.

OpenTL facilities also exist in a variety of DAWs, making Nuendo project transfer reliable and solid.

You can import/export an OpenTL file between Nuendo and Pro Tools, for example. The resulting project contains all audio files, edits, and track names made in the Tascam device or DAW, with all events positioned sample-accurately on the timeline.

The following is a basic OpenTL specification description:

  • Maximum number of mono tracks: 999

  • Supported sample rates (Hz): 44056, 44100, 44144, 47952, 48000, 48048, 42294, 42336, 45938, 45983, 46034, 46080, 50000, 50050, 88200, 96000

  • Bit depth: 16 bit, 24 bit

  • Audio file types: BWF (Broadcast Wave format), WAVE (Standard Wave), SDII (Sound Designer II) (macOS only)

  • Volume formats: FAT32, NTFS, HFS+

  • Automation support: Clip-based volume, breakpoint volume and mute

  • Fade support: Fade-in, fade-out, and crossfade

  • Frame rates (fps): 24/24, 23.976/24, 24.975/25, 25/25, 29.97/DF, 29.97/NDF, 30/DF, 30/NDF