Upload AAC file from your device memory or cloud or via URL
Once uploading is complete, press the convert button
Wait until the end of the conversion and download new MMF fileL
AAC was originally created as a successor to MP3 with improved audio coding quality. Also AAC is a multi-channel audio coding algorithm that supports streaming. To date, the AAC format has not yet reached mass distribution on audio media, but in a number of parameters it surpasses all types of audio compression existing today. This means you can have files that take up less space but still have the same audio quality as other popular compressed audio formats. The format itself is proprietary and requires the purchase of a license for commercial use. AAC is the preferred audio file format for iTunes and Apple Music, but ACC files can be played on Android and Windows computers. Files encoded with AAC can have the extensions .m4a and .mp4. These formats act as containers for packaging audio streams.
The MMF format was created for mobile devices. These files most often store cell phone ringtones, although sometimes other objects such as graphics and text, as well as audio data can be found in them. Can be created from .WAV or .MID files using Yamaha SMAF Tools. There is no program to convert MP3 directly to MMF yet, so the MP3 file must first be converted to WAVE format (file with the .wav extension).