Convert RX2 to SF2

Understanding RX2 and SF2 file formats

RX2 (ReCycle Loop File) is a proprietary audio loop file format developed by Propellerhead Software. It is commonly used for storing sliced audio loops, allowing for tempo and pitch manipulation in music production software such as Reason and ReCycle.

SF2 (SoundFont 2) is a widely used sound bank format that contains sampled audio data and instrument definitions. SF2 files are primarily used for MIDI playback and virtual instruments, enabling musicians to use high-quality sampled sounds in their compositions.

Why convert RX2 to SF2?

Converting RX2 to SF2 allows you to use your sliced audio loops as playable instruments in MIDI-compatible software and hardware. This is useful for integrating unique loops into your music production workflow as custom instruments.

How to convert RX2 to SF2

Direct conversion from RX2 to SF2 is not natively supported by most audio software, as these formats serve different purposes. However, you can achieve this conversion through a two-step process:

1. Extract audio slices from RX2: Use Propellerhead ReCycle to open your RX2 file and export the individual slices as WAV files. Go to File → Export and choose WAV as the output format.
2. Create an SF2 soundfont: Use a soundfont editor such as Polyphone (free, cross-platform) to import the exported WAV slices and map them to MIDI notes. In Polyphone, use File → New to create a new soundfont, then Sample → Import to add your WAV files. Assign them to instruments and save the project as an SF2 file using File → Save as.

Recommended software for RX2 to SF2 conversion

• Propellerhead ReCycle – For opening and exporting RX2 files to WAV.
• Polyphone Soundfont Editor – For creating and editing SF2 soundfonts from WAV samples.

Summary

While there is no one-click solution for converting RX2 to SF2, using ReCycle and Polyphone in tandem provides a reliable workflow. This process enables you to transform your audio loops into versatile soundfonts for use in a wide range of music production environments.