使用vhdl编写的一段程序。 主要功能是声音周期计算，以区别声音信号与噪音信号。-vhdl prepared by the use of a procedure. Its main function is voice cycle, in order to distinguish voice signal and the noise signal.

使用vhdl编写的一段程序。 主要功能是声音周期计算，以区别声音信号与噪音信号。-vhdl prepared by the use of a procedure. Its main function is voice cycle, in order to distinguish voice signal and the noise signal.

This a code to determine the pitch period of voiced speech.-This is a code to determine the pitch period of voiced speech.