Can I convert .mp3 audio to .mkv format?
Converting MP3 Audio Files directly to Matroska Video Files (.mp3 to .mkv conversion) is possible and quite straightforward. It relates to users attempting to encode MP3 audio to MKV video.
Try using a media editing software or (online) conversion tool, such as SUPER or Freemake Video Converter, which should allow users to import MP3 audio and export it in MKV format.
However, an MP3 to MKA conversion might be more useful.
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