Convert NKI to RX2

Understanding NKI and RX2 file formats

NKI is a proprietary file format used by Native Instruments Kontakt, a popular software sampler. NKI files contain sampled instrument data, including audio samples, mapping, and instrument settings. RX2 (ReCycle Loop File) is a format developed by Propellerhead (now Reason Studios) for storing sliced audio loops, allowing tempo and pitch manipulation in compatible DAWs and samplers.

Why convert NKI to RX2?

Converting NKI to RX2 is useful if you want to use sampled instrument content from Kontakt in loop-based music production environments that support RX2, such as Reason or Ableton Live. RX2 files are ideal for tempo-synced loop manipulation, while NKI is more suited for multisample instruments.

How to convert NKI to RX2

There is no direct one-step converter for NKI to RX2 due to the complexity and proprietary nature of both formats. However, you can follow these steps:

1. Extract audio samples from NKI: Open the NKI file in Kontakt (full version, not the Player). Manually export or "save as" the individual audio samples (usually WAV or AIFF) used in the instrument.
2. Create loops from samples: Use an audio editor (such as Audacity or Adobe Audition) to edit and loop the exported samples as needed.
3. Convert to RX2: Import the looped WAV/AIFF files into Reason Studios ReCycle. Use ReCycle to slice the loops and export them as RX2 files via File → Export → Export as REX2.

Best software for NKI to RX2 conversion

• Native Instruments Kontakt – for opening and extracting samples from NKI files.
• Reason Studios ReCycle – the industry standard for creating and exporting RX2 files.
• Audacity (free) or Adobe Audition – for editing and looping audio samples before RX2 conversion.

Important notes

• Direct conversion of instrument settings and mappings from NKI to RX2 is not possible; only audio content can be transferred.
• Always ensure you have the legal right to extract and convert samples from commercial NKI libraries.