To use audio files with your Roland or BOSS product, you may need to convert them to a compatible format such as WAV or MP3. We recommend using Apple’s iTunes (macOS, Windows) or Music app to perform the conversion.
For detailed instructions, refer to Apple’s official support page: Apple Support – Convert a song to a different file format
Note: Supported formats and specifications (such as sampling rate and bit depth) vary depending on the product. Please refer to your product’s owner’s manual for details.