WMA to ASF
Convert WMA to ASF, WMA to ASF Converter
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WMA to ASF Converter converts WMA to ASF. The software is an ALL-IN-ONE audio converter that supports more than 100 audio and video files.
WMA to ASF Converter supports batch conversion and is full compatible with Vista and Windows 7.
What is WMA?
A WMA file is in most circumstances encapsulated, or contained, in the Advanced Systems Format (ASF) container format, featuring a single audio track in one of following codecs: WMA, WMA Pro, WMA Lossless, or WMA Voice. These codecs are technically distinct and mutually incompatible. The ASF container format specifies how metadata about the file is to be encoded, similar to the ID3 tags used by MP3 files. Metadata may include song name, track number, artist name, and also audio normalization values.
What is ASF?
ASF is based on serialized objects which are essentially byte sequences identified by a GUID marker.
The format does not specify how (i.e. with which codec) the video or audio should be encoded; it just specifies the structure of the video/audio stream. This is similar to the function performed by the QuickTime, AVI, or Ogg container formats. One of the objectives of ASF was to support playback from digital media servers, HTTP servers, and local storage devices such as hard disk drives.
The most common filetypes contained within an ASF file are Windows Media Audio (WMA) and Windows Media Video (WMV). Note that the file extension abbreviations are different from the codecs which have the same name. Files containing only WMA audio can be named using a .WMA extension, and files of audio and video content may have the extension .WMV. Both may use the .ASF extension if desired.
ASF files can also contain objects representing metadata, such as the artist, title, album and genre for an audio track, or the director of a video track, much like the ID3 tags of MP3 files. It supports scalable media types and stream prioritization; as such, it is a format optimized for streaming.
The ASF container provides the framework for digital rights management in Windows Media Audio and Windows Media Video. An analysis of an older scheme used in WMA reveals that it is using a combination of elliptic curve cryptography key exchange, DES block cipher, a custom block cipher, RC4 stream cipher and the SHA-1 hashing function.
ASF container-based media is usually streamed on the internet either through the MMS protocol or the RTSP protocol.
WMA to ASF Related Topics: ULAW to ASF, MKA to ASF, QCP to ASF, AAC to ASF, OMA to ASF, AWB to ASF, AU to ASF, WAV to ASF, MLP to ASF, GSM to ASF, RA to ASF, OGG to ASF, AC3 to ASF, MO3 to ASF, M4B to ASF, AIFC to ASF, CAF to ASF, W64 to ASF, SHN to ASF, RMI to ASF, WV to ASF, NSA to ASF, MPC to ASF, MOD to ASF, MTM to ASF, KAR to ASF, XM to ASF, S3M to ASF, MPP to ASF, MP3 to ASF
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