Whilst not something done commonly, even .mp3 audio files could be converted to a Matroska file (.mkv). However such file would only contain audio track and no video track, so it would be somewhat of a pointless conversion. You would be better off with converting to Matroska audio only files (.mka)
Convert Compressed audio and music file, mp3 songs or ringtones to Matroska multimedia container.
We found 13 software records in the database related to .mp3 to .mkv file format conversion.
Microsoft Windows software - convert mp3 to mkv on Windows
One of the most popular and succesfful free video conversion sofrware
Convert from mp3 file format
|Yes, Freemake Video Converter supports mp3 file conversion as a source file type.||No||No||No||No||No||No||No|
|Yes, Freemake Video Converter supports mkv file conversion as a target file type.||No||No||No||No||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned mp3 to mkv. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A multimedia conversion utility
All-in-one package of DVDVideoSoft utilities and converters
A free universal media transcoder for Windows
Universal All Purpose Free Media, Audio & Video Converter Player Recorder
A multimedia converter for Windows
A multimedia converter
A professional video encoding application for Windows and Mac
Apple macOS / Mac OS X software - convert mp3 to mkv on OS X
A multimedia conversion software
Universal video converting software for Mac
Mac version of popular video conversion software
A iPhone ringtone creator for Mac