MMF to OPUS Converter

Convert MMF (Music Mobile Application File) to OPUS (Opus Audio Codec) online and completely free.

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How to convert MMF to OPUS online

  • 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 .opus files.
MMF to OPUS Converter

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

OPUS
OPUS (Opus Audio Codec)

OPUS is an audio codec and file format of the same name designed for storing audio. OPUS provides lossy compression and was intended for streaming audio in online broadcasts. Files in the OPUS format support bitrates from 6 to 510 kbps and provide low latency during encoding, which is why it is widely used in video conferences, voice communication (VOIP), video chats, etc. OPUS also allows you to work with regular music files.
File type: Audio
File extension: .opus
Developed by: Internet Engineering Task Force & Xiph.Org Foundation
Initial release: September 11, 2012

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