How to Play MMF Files? How to Convert MMF Files to MP3?

If you have found some default ringtone files saved in .mmf extension from old phones, what might surprise you most is that many major media players can't open and play them at all. So, what's an MMF file? How to play MMF files? Is it possible to convert MMF to MP3 for direct playback and editing? Don't fret, this post covers all you want to know.

No need to jump from an MMF player to MMF converter and back again, this great freeware always has you covered:

Kevincy Kevincy | Updated on Sep 15, 2023

1. A Brief Introduction to MMF File

2. How to Play MMF Files with MidRadio Player?

3. [Recommended] 3 Simple Steps to Convert MMF Files to MP3 in Bulk

4. How to Convert MMF to MP3 with Audacity?

5. How to Convert MMF to MP3 Online?

A Brief Introduction to MMF File

Q: "Is there any way to convert a lot of ringtones in .mmf format all at once to MP3 or WAV for example? I know there are a lot of online converters, but they either can convert only 1 file at once or won't recognize this file type. Any suggestions?"

A: Well, MMF is an audio format container that stores Yamaha SMAF data for ringtones using on some old hand-held portable devices, such as mobile phones and PDAs. In a nutshell, MMF is an old audio format commonly used for ringtones, and is incompatible with most modern media players and audio editors on all platforms. That's the reason why many people rummage around the Internet for an MMF player and an MMF file converter. Here, this post will give you a satisfactory answer.

Batch Convert MMF to MP3

As a feature-rich A/V processor, HD Video Converter Factory Pro also works as a batch MMF to MP3 converter, allowing you to convert MMF files to MP3, WAV, FLAC, M4A, OGG, etc. easily. Download this novice-oriented app and give it a shot.

How to Play MMF Files with MidRadio Player?

Yamaha's Mid Radio player is a free mini player that can be used to play back general MIDI files and SMAF (.mmf) files, which were commonly used in the early/mid 2000s with mobile phones. Despite the discontinued update, Yamaha MidRadio Player is still highly recommended to play MMF files on both Windows and Mac OS. Follow the steps to open and play MMF files.

Step 1. Download Yamaha MidRadio Player from the webpage:

Step 2. Click on "ダウンロードページへ" button to open a new webpage. Scroll down and press "同意する" on the bottom of the page.

Step 3. Take an example for Windows users, based on your Windows version, click "ダウンロード" link to download "mr7211.msi" or "mr7211.exe" installer.

Step 4. Run the installer and follow the instructions to complete the installation of Yamaha MidRadio Player. Your MMF file will be automatically associated Yamaha MidRadio Player.

Step 5. Double-click your MMF files to play them in the free MMF player.

Play MMF Files with MMF Player

Note: The problem is, however, Yamaha MidRadio Player doesn't have an official English version. If you are not feeling comfortable with Japanese, I have uploaded an English translation portable version to Google Drive. Simply run the executable file "MidRadioEN.exe" to open the MMF player after unzipping file package, then drag and drop your MMF files onto it.

You can download it here:

A Full-Featured Yet Easy-to-Operate MMF to MP3 Converter

Yamaha MidRadio Player is only capable of MMF file playback on computer. But what if you want to play or edit MMF file on other devices or applications? It's a good option to convert MMF files to the universal MP3. Therefore, an MMF to MP3 converter is a must-have. WonderFox HD Video Converter Factory Pro is first choice because it can be used as an MMF player, MMF converter and MMF editor simultaneously. The batch audio conversion mode will save you a lot of time and energy, and the user-friendly interface will impress you a lot.

Free downloadFree download this application here, and learn how to batch convert MMF file to MP3 all at once.

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3 Simple Steps to Convert MMF Files to MP3 in Bulk

Step 1 - Add MMF Files to MMF Converter

Install and launchInstall and launch HD Video Converter Factory Pro, open "Converter" module from the start-up interface. Then click on "Add Files" button to add your MMF files from your computer, or simply perform a drag-n-drop action.

Add Files to MMF to MP3 Converter

Step 2 - Select MP3 Profile as Export Format

Click on the output format menu on the right side to unfold a full list of 500+ configured presets. To batch convert MMF to MP3, go to "Audio" category and choose "MP3" profile right there.

As you can see, you can also convert MMF to WAV, FLAC, AIFF, ALAC, OGG or any other common audio format, and even make a ringtone for iPhone or Android.

How to Open MMF Files and Convert to MP3

Step 3 - Start MMF to MP3 Batch Conversion

Now, choose a destination folder to save the converted MP3 files. Finally, hit the big "Run" button to convert MMF files to MP3 in batches.

Also Read: Convert CAF to MP3 | WEBA to MP3 | MPA to MP3 | OGX to MP3 | VQF to MP3 | AEA to MP3

Batch Convert MMF to MP3

Optional - Modify Audio Parameters & Editing

Before you start MMF to MP3 conversion, you're also entitled to open "Parameter settings" window to change MP3 bitrate, sample rate, channels and volume right there. Moreover, this program even equips some basic editing features that enable you to trim, split, and splice music files easily.

More than a Simple MMF to MP3 Converter
More than a Simple MMF to MP3 Converter
  • Convert MMF to MP3, WAV, FLAC, ALAC, OGG, etc. in batches.
  • 500+ optimized presets for fast media conversion.
  • Compress large-sized audio files with minimal quality loss.
  • Trim, split, merge audio files without difficulty.
  • Download song/album/mixtape/audiobook from 1000+ sites.
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  • Create personalized ringtones, extract audio from video.
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How to Convert MMF to MP3 with Audacity?

Audacity is an acclaimed free audio editor that everyone should be familiar with. But Audacity doesn't natively support MMF file unless you have the FFmpeg Import/Export Library is installed. Good news is, LAME MP3 encoder has been built-in with latest version of Audacity as the software patent on LAME encoding library has expired, that is, you're able to import and export MP3 in Audacity without installing LAME library. Here's the walkthrough.

Step 1. Install or update Audacity to the latest version through official website:

Step 2. To convert MMF to MP3 with Audacity, follow the instructions to install FFmpeg Import/Export Library for Audacity: Otherwise, you will run into import failure error.

Step 3. Run Audacity, click "File" > "Open" to load your MMF files, or simply drag and drop them into the interface. It may take a while to load all of them. With the FFmpeg Library installed, you're able to import MMF files to Audacity without a hitch.

Step 4. Now you can edit MMF files as you wish, such as splitting tracks, merging tracks, isolating vocals, etc.

Step 5. Click "File" > "Export" > "Export Multiple" to open a new window.

Step 6. Select "MP3 Files" option in the format list.

Step 7. In "Options" section, you're allowed to convert MMF's to 320kbps MP3's or select your preferred quality.

Step 8. Finally, click "Export" > edit MP3 metadata > "OK" to make Audacity convert MMF to MP3.

Convert MMF to MP3 with Audacity

Versatile MMF to MP3 Converter

Apart from editing and converting MMF to MP3, HD Video Converter Factory Pro even allows you to Download song/album/mixtape/audiobook from YouTube, Vimeo, SoundCloud and 1000+ sites, record live streams, make GIFs. Get it NOW!

How to Convert MMF to MP3 Online?

Instead of installing additional software or plug-in, most people prefer to convert MMF to MP3 online. Unfortunately, not every online audio converter works well for changing the MMF audio file type. Here, I'll take Audio-Convert as an example for illustrating how to convert MMF to MP3 below.

Step 1. Open the MMF MP3 converter online from your browser:

Step 2. Click on the "Upload.MMF" button to select and upload the MMF file from your computer, Dropbox or a URL. You can also drag and drop the MMF file to the white box area.

Step 3. Select "MP3" from the output format drop-down list. And press the "Gear" button to personalize the parameters.

Step 4. Click on the "CONVERT" button to convert MMF to MP3 online.

Step 5. When the conversion process is complete, press the "DOWNLOAD" button to download the converted MP3 file to your computer.

Convert MMF to MP3 Online

Final Words...

That's all! Now you've figured out what an MMF file is, how to play MMF file and how to convert MMF to MP3 or any other audio format. If you're unlucky to run into an awkward issue that the MMF file won't convert but works in the MMF player, a roundabout solution is to record the audio using HD Video Converter Factory ProHD Video Converter Factory Pro or Audacity while playing MMF files in Yamaha MidRadio Player. Hopefully this post is helpful to deal with MMF files. Your thoughts would be appreciated. Thanks for your reading!

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