Frequently Asked Questions What File Format Do I Need? There are 3 main file types that DAW applications work with, Wav, AIFF & REX2 files.
Wav is the standard file format for PC driven, DAW applications. While AIFF (audio interchange file format) is the file format for MAC. Both systems will read Wav & AIFF if your Daw software supports it. Below you can find the necessary information for the DAW software you use. We provide the three different file types in all our loop products. The Wav files we offer are all Acidized, which means they contain TEC tags written into the file data. This enables the loop file to be altered in tempo & or pitch, when using software programs that support acidization. If your Daw application does not support acidization, then they will just read the acidized wav as normal wav files. Rex2 files are the creation of Propeller Head, designed for use with Reasons Dr. Rex loop player.
Many other Daw application support Rex2, such as Nuendo & Logic.
Rex2 files have beat markers placed inside them at the necessary points required to enable tempo variations. The procedure of beat marking is done with the use of Propeller Heads Recycle program. 
DAW Systems File Compatibility ms Compatible File Types Steinberg's Nuendo & Cubase Nuendo supports AIFF & WAV files, but does not read Acidization. Cubase SL/SX supports Acidized WAV files as well as REX files, WAV is the recommended file type for these applications. For SL & SE WAV is the file type you will need. 16 & 24 bit sample rates are both supported by Nuendo & Cubase. Cakewalk / Sonar 16 bit WAV is the recommended file type & sample rate for these applications as it is the default sample rate. They will support 24 bit & more recent cakewalk app's support Acidization. Logic I recommend using AIFF or Acidized WAV files for this software package. Logic supports REX 2 files, but they do sometimes cause problems with the software. I personally only recommend REX 2 for Propellerheads applications. Sony Soundforge / ACID The default sample rate of Sony DAW applications is 16 bit. So the recommendation for the user is 16 bit WAV. They do support 24 bit, & you are most welcome to use this bit rate. Though 16 bit is preferred. Pro Tools If you are running a PC & using Pro Tools version 6 or below you can use either 16 or 24 bit WAV files (check that your sound card supports 24bit) For MAC users, it is recommended that you use 24 bit WAV files. Fruity Loops Again the default is 16 bit WAV, so this is the recommended file type. You can use 24 bit if you require. Garage Band WAV or AIFF is supported here, but the application only outputs the audio signal in 16 bit, but it will read 24 bit. I suggest using 24 bit here if you are thinking of upgrading to a more advanced DAW system. Adobe Audition (cool edit) The default sample rate is 16 bit WAV files. If your sound card does supports 24 bit, you can use this bit rating. But i do recommend staying in the 16 bit format. Albeton Live You can use either 16 or 24 bit WAV files with this application (check that your sound card supports 24 bit). Digital Performer The original file type for this Application is REX, but if you are using version 3.1 & above then i suggest you go with WAV files. AIFF files are supported from version 4.5 onward. Propellerheads Reason As Propellerheads are the creator of REX files, this is the file type you will use. Digital Audio Workstations : (Roland, Yamaha, etc.): 16bit Wav files are recommended, unless you know that the DAW unit you have will support 24bit. | 
