ASIO的全称是Audio Stream Input Output，直接翻译过来就是音频流输入输出接口的意思,ASIO完全摆脱了Windows操作系统对硬件的集中控制，它能实现在音频处理软件与硬件之间进行多通道传输的同时，将系统对音频流的响应时间降至最短。采用ASIO技术可以减少系统对音频流信号的延迟，增强声卡硬件的处理能力.几乎所有的声卡甚至 AC97 板载声卡都能支持 ASIO，达到专业音频卡才能达到的低延迟.
ASIO4ALL是Wuschel开发出来的一种ASIO驱动，作者说只要是WDM声卡都可以靠它拥有ASIO输出以提高声卡音质
No longer faults with SB X-Fi under Vista.
General Vista compatibility improved.
Improved WDM enumerator display of device names.
Add ability to recover from surprise removal of USB audio devices.
Some fine tuning of WaveRT implementation.
Agressive device re-ordering (as of beta 2) softened down somewhat. Analog outputs should still be listed before SPDIF ones, though.
More minor improvements, most of which mainly serve to increase fault tolerance, others may change the world as we know it, but, alas, over time I had forgotten which ones and in what way exactly.
