hda是高传真音效的意思，High Definition Audio的缩写。
High Definition Audio
英 [haɪ ˌdefɪˈnɪʃn ˈɔːdiəʊ] 美 [haɪ ˌdefɪˈnɪʃn ˈɔːdioʊ]
短语：
I would call them the best choice for a multimedia platform for high definition video and audio formats.
我会叫他们的最佳选择，以高清晰度视频和音频格式的多媒体平台。
In the field of signal processing, high efficiency network, and high definition audio/ video, memory bandwidth has increasingly become a bottleneck, especially in multi-core SoC designs.
在信号处理、高性能网络设备和高清音视频等领域，尤其对于多核SoC设计，存储器带宽越来越成为限制系统性能的瓶颈。
