1To get started, upload one or more .mmf files to the converter area.
2Then use the audio conversion settings and click the "Convert" button.
3When the conversion is complete, you can download .m4a files.
MMF
MMF (Music Mobile File)
MMF or Yamaha SMAF (Synthetic Music Mobile Application File) are audio files with .mmf extension. Files in the MMF format were often used for making ringtones for mobile phones with polyphony support. MMF audio files are usually created by converting from other popular formats with special software like Yamaha's SMAF Tools. Structurally, MMF is similar to MIDI melodies. An interesting feature of the format is the ability to display graphics and text as well.
File type: Audio
File extension: .mmf
Developed by: Yamaha
Initial release: 1999
M4A
M4A (MPEG-4 Part 14)
The M4A music format was developed by Apple. This is the format used to store audio files on the iTunes Store platform. This format is a kind of MPEG-4 container but designed specifically for encoding music. The M4A format can use both lossless and lossy compression using AAC (Advanced Audio Coding) or ALAC (Apple Lossless Audio Codec) technologies.