.RPP File Format

Introduction

An .rpp file is a project saved by REAPER, the digital audio workstation from Cockos. Unlike most music projects it is plain text, so it can be read, compared and even edited in a text editor, and scripts can generate or change projects. Audio is kept in separate files that the project refers to by path.

REAPER also writes .rpp-bak backups in the same format.

Structure

The file is a tree of blocks. A block opens with a line starting < and its type, such as <REAPER_PROJECT, <TRACK, <ITEM or <SOURCE WAVE, and closes with a line holding only >. Between them, each line is a keyword followed by its values, such as TEMPO 120 4 4 or VOLPAN 1 0 -1 -1 1. Plug-in states are stored as base64 text inside their blocks.

<REAPER_PROJECT 0.1 "7.0/win64" 1700000000
  TEMPO 120 4 4
  <TRACK
    NAME Vocals
    <ITEM
      POSITION 0
      LENGTH 12.5
      <SOURCE WAVE
        FILE "Audio/vocals.wav"
      >
    >
  >
>

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