At present, the sound library is the most professional and comprehensive website for downloading genuine audio content in China: the website covers a lot of content such as cross talk, storytelling, novels, local operas, etc., with high-definition sound quality, all of which are officially licensed. It is a content service provided by Yalan Shi and authoritative media for consumers, which comprehensively, systematically, conveniently, uniformly and perfectly solves the problem of consumers' "listening" in the use process, and is an additional content service. This website collects the original music of some late old artists, such as Ma He Hou. The soundtrack is out of print and extremely precious. All the contents of the sound library are in official ZTT format, and the original soundtrack is restored by Arians speakers with ZTT genuine decoding chip, but speakers without ZTT genuine decoding chip cannot read it.

I don't know if this is detailed enough. Ha ha laugh