Project Settings
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Overview
Recordings made in REAPER are saved as Projects. A REAPER project file has the extension .rpp - e.g. MyRecording.rpp. REAPER Project files are saved in plain text format and can be opened, viewed and edited in any text editor.
Project Settings are saved with each .rpp file and are specific to that particular Project. Certain Project Settings override standard REAPER Preferences while the Project is open.
REAPER Project Settings are accessible by selecting File > Project Settings (Alt+Enter).
Selecting the Save as default project settings button will make your changes apply to any new Project.
To learn more about the Project Settings options, see the topics below:
Audio
==Path To Save Files== Enter a directory path, or select to navigate to a directory that will be used as the default Save path for all Project-related files - e.g. Audio, MIDI, Peaks, etc. If this field is not set, REAPER will record audio and MIDI files to the default directory (the same as the REAPER install directory) or to the directory listed in Options > Preferences > Audio > Recording.
Project sample rate
Select this check box to enable the sample rate to be set by the Project. Select the sample rate from the drop-down box by scrolling and clicking on the sample rate you wish to use:
The list of available sample rates is determined by the capabilities of your audio device.
Note that this sample rate will override the global sample rate set in Options > Preferences > Audio > Device.
Use recording format for open copy/apply FX/Save As with trim
Select this check box to use the Project Recording Format when using the Open Copy, Apply FX or Save As with trim functions. If this check box is not selected these functions will use 44.1kHz, 24bit WAV as the recording format.
Recording Format
By default, REAPER records to WAV format at a sample rate of 44.1kHz and a bit depth of 24 bits. The Recording Format drop-down box allows you to select the following alternative recording formats:
Currently supported Recording Formats:
• WAV 16, 24, or 32 bit floating point
• AIFF
16, 24 or 32 bit
• FLAC
16 bps
0-8 Quality
• MP3
CBR, VBR default, VBR old, VBR new, VBR mtrh or ABR Modes
Stereo, Joint Stereo, Multi-Channel or Mono
8 - 320 Constant Bitrate
13 Quality options
• OGG Vorbis
VBR, CBR or ABR
Variable Quality and Bitrate options
• WavPack
16, 24, 32 and 32 bps float bit depths
Variable Modes
WAV bit depth
This section is used to set the parameters of the Recording Format. The information is this section will change depending on the Recording Format you select.
Write "BWF" (text) chunk
This enables a text chunk in the wave file which is compatible with the "Broadcast Wave Format" or "BWF", that allows it to remember its offset and place in a project. BWF format @ wikipedia
Allow large files to use Wave64
This enables usage for the "wave 64" format (wave 64 info here) which, among other things, allows for higher filesizes (+4GB) than conventional wave formats.