AC3, short for Dolby Digital AC-3, is a new generation of multi-channel digital system for home theater. It contains five channels for normal-range speakers and one channel for the subwoofer driven low-frequency effects, and so it is also known as 5.1-channel. Audio files could be compressed to as small as 1/12 by AC3 with some loss on sound quality correspondingly.

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 ac3 to asf, please install DVD players such as WinDVD player or PowerDVD player, which include the AC3 decoder. Because asf format only supports stereo or mono channel, please configure output audio channel as stereo in properties of AC3 decoder.  Or install the ac3 decoder. In VISTA the codec is bundled as default.


Download ASF Converter which can convert ac3 to asf file. Select an ac3 file, change audio encoding bitrate if necessary,  rename the output file to asf extension.

CDG is the shortage of Compact Disc Graphics which is an old disk format. From the name it presents, we could find that CDG is a special audio compact disc that adds static graphics data to the disc. Actually, graph on CDG is usually ignored both for there being no influence on playing music and for needing add special CD System if the graph needs to be displayed. So, CD-G is not so popularly used and it is mainly applied to Karaoke. CDG or BIN is CD+G karaoke file extension.

To convert cdg or bin to asf, please install karaoke filter.

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