MMF to WAV for Audio Workflows
Fast, instant MMF (SMAF) to WAV conversion. No signup required. Just drop your .mmf file and get .wav in seconds.
Batch Settings
ヤマハのMUシリーズやXG音源で作成されたMMFファイルは、かつては着メロやゲーム音楽として親しまれてきました。しかし、現代の多くのデバイスやソフトウェアでは直接再生が難しく、せっかくの懐かしいメロディが埋もれてしまっていることも少なくありません。当社の変換ツールは、そうしたMMFファイルを、汎用性の高いWAV形式へとスムーズに変換いたします。これにより、思い出の音源を最新の環境で再び楽しんだり、編集・活用したりすることが可能になります。複雑な設定は一切不要。どなたでも簡単にお使いいただけますので、大切な音源を諦めることなく、ぜひこの機会にWAV化して、新たな息吹を吹き込んでみませんか。
- ガラケー時代の着メロ復活
- 同人ゲームのレトロ音源利用
- ビジネスプレゼンへの効果音追加
日本では、MMF形式はフィーチャーフォン（ガラケー）の着メロとして広く普及しました。そのため、個人的な思い出の音源としてWAV変換を希望される方が多くいらっしゃいます。
About MMF (SMAF) to WAV Conversion
Whether you're one of the many musicians, podcasters, and audio engineers who work with MMF files daily, there comes a time when you need WAV instead. MMF is a widely used file format.
Here's a typical scenario: you receive a .mmf file but your project, platform, or client requires .wav. WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes. Rather than searching for desktop software or wrestling with command-line tools, you can convert MMF to WAV online in seconds with CocoConvert.
This conversion is ideal when you When you need a WAV file. The conversion helps you convert between formats quickly.
Converting MMF to WAV maintains high quality with CocoConvert's optimised encoder settings.
Behind the scenes, CocoConvert uses industry-standard tools — FFmpeg for audio and video, Sharp for images, qpdf for documents. Your file is uploaded securely (TLS encryption), processed on isolated servers in Germany, and auto-deleted within 24 hours. No account, no watermark, no hidden fees.
Power users can batch convert up to 100 files simultaneously with a Pro subscription, making it practical for production workflows.
How to Convert MMF (SMAF) to WAV
- 1
Drop your file
Drag your .mmf file onto the converter. Need to process many files? Add up to 5 at once (100 for Pro).
- 2
Set output to WAV
Pick WAV from the format list. The converter automatically tunes settings for the MMF→WAV pair.
- 3
Hit Convert
Processing happens server-side — your browser stays responsive. Most audio files convert in under 10 seconds.
- 4
Download and use
Your .wav file is ready to plug into your workflow. Download it or share the link (expires in 24 hours).
What Happens When You Convert MMF (SMAF) to WAV
Your MMF file is decoded and re-encoded as WAV.
Your MMF file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in WAV format
The converted file is ready for download
Format Comparison
MMF (SMAF)
.mmf file
| Extension | .mmf |
| MIME Type | audio/x-smaf |
| Category | Audio |
WAV
.wav file
| Extension | .wav |
| MIME Type | audio/wav |
| Category | Audio |
Should You Convert MMF (SMAF) to WAV?
When to Convert
- ✓When you need a WAV file
Frequently Asked Questions
Who needs to convert MMF to WAV?
This conversion is commonly used by musicians, podcasters, and audio engineers. Typical reasons include convert between formats quickly and ensuring compatibility with downstream tools or platforms.
Can I convert MMF to WAV without losing quality?
Converting MMF to WAV maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert MMF to WAV?
No. CocoConvert runs entirely in your browser — no downloads, no plugins. It works on macOS, Windows, Linux, iOS, and Android.
How many MMF files can I convert at once?
Free users can convert up to 5 files per hour. Pro subscribers get 100 files per hour with larger size limits (5 GB per file). Business API users can integrate batch conversion directly into their tools.
Is there an API for MMF to WAV conversion?
Yes. CocoConvert offers a Business API for automated conversions. It supports all the same format pairs available in the web interface, including MMF to WAV.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.