Convert CAF to 669

Understanding CAF and 669 file formats

CAF (Core Audio Format) is an audio file format developed by Apple, designed to overcome limitations of older audio formats. It supports a wide range of audio data, metadata, and can store large files, making it popular for professional audio applications on macOS and iOS.

669 is a module file format used for storing music created with trackers, specifically the Composer 669 and Unis 669 trackers. It contains patterns, samples, and sequencing information, and is primarily used in the demoscene and retro music communities.

How to convert CAF to 669

Converting a CAF audio file to a 669 tracker module is a complex process, as these formats serve different purposes. CAF is a general audio container, while 669 is a music module format that requires note patterns and instrument samples. Direct conversion is not straightforward and typically involves manual steps:

• Extract audio samples from the CAF file.
• Import these samples into a tracker that supports 669 format.
• Manually sequence the music patterns using the tracker interface.
• Export the project as a 669 file.

Recommended software for conversion

For this conversion, you will need two types of software:

• Audio editor (to extract samples from CAF): Audacity (free, cross-platform) can open CAF files and export audio as WAV or other formats.
• Tracker software (to create 669 modules): OpenMPT (Open ModPlug Tracker, free for Windows) supports importing samples and saving in 669 format.

Step-by-step conversion process

1. Open your CAF file in Audacity.
2. Use File → Export → Export as WAV to save the audio samples.
3. Launch OpenMPT and create a new 669 module.
4. Import the WAV samples into OpenMPT using Instrument → New Sample and File → Import Sample.
5. Manually arrange the samples into patterns and sequences as needed.
6. Save your project as a 669 file using File → Save As and selecting the 669 format.

Important considerations

• There is no automated tool for direct CAF to 669 conversion due to the fundamental differences between the formats.
• Musical knowledge and manual editing are required to create a meaningful 669 module from audio samples.
• Quality and fidelity may be limited by the 669 format's capabilities.