Baud base

例句：

1. 1. The sound of the piano is audible at this Baud base.
   钢琴的声音在这个基频上是可听的。
2. 2. The engineer adjusted the Baud base to optimize performance.
   工程师调整了基频以优化性能。
3. 3. The Baud base for this system is set to 440 Hz.
   该系统的基频设置为440赫兹。