Convert AIFF to SFZ

Understanding AIFF and SFZ file formats

AIFF (Audio Interchange File Format) is an uncompressed audio file format developed by Apple, commonly used for storing high-quality audio data. It is widely supported in professional audio applications and is known for its lossless quality.

SFZ is not an audio file, but a sample-based instrument format used in software samplers. An SFZ file is a plain text file that defines how one or more audio samples (such as AIFF or WAV files) are mapped to a virtual instrument, specifying parameters like key ranges, velocity layers, and effects.

How to convert AIFF to SFZ

Direct conversion from AIFF to SFZ is not possible in the traditional sense, as SFZ is a mapping/instrument definition file, not an audio format. Instead, you use your AIFF samples and create an SFZ file that references them. This process is called creating an SFZ instrument from AIFF samples.

Best software for creating SFZ instruments from AIFF files

• Sforzando (by Plogue): A free SFZ player and editor. You can manually create SFZ files referencing your AIFF samples.
• Polyphone: A free soundfont editor that can export to SFZ format and supports AIFF samples.
• Chicken Systems Translator: A commercial tool that can automate the process of mapping AIFF files to SFZ instruments.

Step-by-step: Creating an SFZ instrument from AIFF samples

1. Organize your AIFF samples in a folder.
2. Open Polyphone or your preferred editor.
3. Import your AIFF files into the software.
4. Map each sample to the desired key or velocity range.
5. Export or save the instrument as an SFZ file, ensuring the paths to your AIFF files are correct.
6. Test your SFZ instrument in a compatible sampler like Sforzando.

Tips for successful conversion

• Keep your AIFF samples in the same folder as your SFZ file for easy file path management.
• Use a text editor to fine-tune the SFZ file if needed.
• Refer to the SFZ format documentation for advanced mapping options.