AU to MMF — Format Comparison & Online Converter
Fast, instant AU to MMF (SMAF) conversion. No signup required. Just drop your .au file and get .mmf in seconds.
Batch Settings
Quer transformar seus arquivos de áudio AU em MMF de forma rápida e descomplicada? Seja para otimizar o som de notificações no seu celular, criar toques personalizados com aquela música brasileira que você adora, ou mesmo para compor trilhas sonoras leves para seus vídeos e apresentações, nosso conversor está aqui para ajudar. Entendemos a necessidade de ferramentas eficientes no dia a dia digital, especialmente quando se trata de gerenciar arquivos multimídia. Com apenas alguns cliques, você pode adaptar seus arquivos AU para o formato MMF, conhecido por sua compactação e compatibilidade, garantindo que seu conteúdo seja acessível e funcional em diversas plataformas e dispositivos. Diga adeus às incompatibilidades e aproveite a facilidade de ter seus áudios no formato certo.
- Toques de celular personalizados
- Áudios para apps de mensagens
- Trilhas sonoras leves para vídeos
No Brasil e em Portugal, o formato MMF foi bastante popular em modelos de celulares mais antigos para toques, e ainda é usado em alguns sistemas legados ou para arquivos de áudio muito compactos.
About AU to MMF (SMAF) Conversion
AU and MMF are both audio formats, but they differ in important ways. AU is a widely used file format. MMF is a widely used file format.
When you convert AU to MMF, the goal is to convert between formats quickly. Converting AU to MMF maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your AU file is decoded and re-encoded as MMF. The conversion involves 4 steps: (1) your au file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in mmf format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a MMF file. For the opposite direction, CocoConvert also supports MMF to AU conversion.
How to Convert AU to MMF (SMAF)
- 1
Upload .au file
Select your AU file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .mmf
Set MMF as the output format. The converter uses optimal settings based on the AU→MMF conversion profile.
- 3
Convert
The server-side engine decodes your AU file and re-encodes it as MMF. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .mmf file. Multiple output files can be downloaded together.
What Happens When You Convert AU to MMF (SMAF)
Your AU file is decoded and re-encoded as MMF.
Your AU file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in MMF format
The converted file is ready for download
Format Comparison
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
MMF (SMAF)
.mmf file
| Extension | .mmf |
| MIME Type | audio/x-smaf |
| Category | Audio |
Should You Convert AU to MMF (SMAF)?
When to Convert
- ✓When you need a MMF file
Frequently Asked Questions
What is the difference between AU and MMF?
AU is a widely used file format. MMF is a widely used file format.
Does AU to MMF conversion affect quality?
Converting AU to MMF maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, AU or MMF?
AU is a common audio format. MMF is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does AU to MMF conversion take?
Most conversions finish in seconds. Larger files or complex audio content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is AU or MMF better for long-term storage?
Both formats use lossy compression, so consider keeping your original source file for long-term storage.
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