WMA是微软专有的音频容器格式。WMA中使用了4种编解码器——WMA、WMA Professional、WMA无损和WMA Voice。它使用四种WMA编解码器之一对音频进行编码。WMA包含高级系统格式(ASF)的音频文件。ASF文件决定元数据的编码方式。
WMA is a proprietary audio container format of Microsoft. There are 4 codec used in WMA – WMA, WMA Professional, WMA Lossless and WMA Voice. It uses one of the four WMA codec to encode audio. WMA contains the audio file in Advanced Systems Format (ASF) format. The ASF file decides how the metadata will be encoded.