ASF is Advanced Streaming Format. It is an extensible file format developed primarily for storing synchronized digital video, audio, subtitle streams, or transmitting data on the internet. ASF is also a multimedia container of Windows Media Video or Windows Media Audio.

To convert mka to asf file, please install mka decoder.

Download ASF Converter which can convert mka to asf file. Select an mka file, change audio encoding bitrate if necessary,  rename the output file to asf extension.

RINGTONE, now popular known as the customizable sounds available on mobile phones, is the sound generated when an incoming telephone call is received. A phone only rings after a special "ringing signal" being sent to it. The ringing signal for both landline telephones and mobile phones are different.

SMAF, short for Synthetic music Mobile Application Format, is a multimedia data format developed by Yamaha. SMAF is specified for portable electronic devices like cell phones and PDAs and has *.MMF as its file extension. SMAF resembles MIDI, but it has smaller size and more powerful representation. Right now, SMAF is mainly used in making ringtones of mobile phones.

MMF is a ringtone format applied frequently to mobile phones. MMFfile size is rather small and still could be compressed which adapts to mobile phones of weak CPU processing capability and small storage capacity. With good sound quality, MMF ringtone could either be pure MIDI or PCM or even PCM+MIDI. Besides, it is the extension of SMAF file and could expand the multimedia function of image, text and sound in SMAF respectively.

Please install related codecs to convert ringtone smaf mmf to asf.