Free online CAFF to MP2 converter

Source format

CAFF is the Core Audio File Format, an audio container developed by Apple. It is used mainly on macOS and related Apple software for storing high-quality audio, often with uncompressed PCM data or other audio encodings. CAFF is common in professional audio workflows, sound libraries, and applications that need a flexible Apple-native audio container.

Target format

MP2 is the MPEG-1 Audio Layer II format, a compressed audio format widely used in broadcasting, digital radio, and some legacy video and multimedia systems. Its main advantages are efficient compression, broad compatibility in specific professional and broadcast environments, and relatively simple decoding. Compared with CAFF, MP2 is much smaller but is lossy, so some audio quality is discarded during conversion.

How to perform the conversion

The most reliable way to convert CAFF to MP2 is with FFmpeg, a powerful command-line tool that supports both formats. If you prefer a desktop workflow, you can also use audio editors such as Audacity for importing CAFF and exporting to MP2 when the required encoder is available. For a quick browser-based option, you can convert the file on 101convert.com for free without installing any software.

1. Install FFmpeg on your computer.
2. Open a terminal or command prompt in the folder containing your CAFF file.
3. Run a command such as ffmpeg -i input.caff -c:a mp2 -b:a 192k output.mp2.
4. Adjust the bitrate if needed. Common MP2 bitrates include 128k, 192k, and 256k.
5. Play the resulting output.mp2 file in a compatible player to verify the conversion.

If you use a graphical editor, the general workflow is: open the CAFF file, then choose File → Export or File → Save As, select MP2 as the output format, and confirm the export settings.

Notes on quality and compatibility

Because MP2 is lossy, converting from CAFF will reduce audio fidelity, especially if the source is high-resolution or uncompressed. To preserve the best possible quality, start from the original CAFF file rather than a previously compressed copy. MP2 support is not universal in consumer software, so check whether your target player or device can open MP2 files before converting. If the CAFF file contains multiple channels or unusual sample rates, FFmpeg will usually handle the resampling automatically, but you may want to specify bitrate and channel settings explicitly for predictable results.