DIGITAL-TO-ANALOG, the process of converting a digital signal (binary) to a continuously variable (analog) signal that is a close approximation of the original signal.
2
抽样率是指模拟声音每秒钟被计算机转换成二进制数字的次数。
The sampling rate is the number of times per second analog sound is turned into a binary number by the computer.
A twice modulation is designed:, CVSD was adopted to realize conversion between analog and digital voice signals, 2DPSK was used as the digital modulation mode.