You can convert audio files saved in MMF format (synthetic music mobile app) to common MPEG-4 (.mp4) files with some of the dedicated multimedia programs that support both of these file types. It appears that MMF format has somewhat limited support, so your options for this conversion will be limited.
Convert Synthetic music mobile application format to MPEG-4 video file format.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert mmf to mp4 on Windows
A free and powerful video conversion utility, SUPER is based on FFmpeg, MEncoder, MPlayer, x264, MusePack, Monkey's audio, Shorten audio, TAK audio, True audio, WavPack, the libavcodec library & the theora/vorbis RealProducer's plugIn.
Convert from mmf file
|Yes, SUPER supports mmf file conversion as a source file type.||No||No||No||No||No||No||No|
to mp4 file
|Yes, SUPER supports mp4 file conversion as a target file type.||No||No||No||No||No||No||No|
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.