采样率转换器的缩写，如果SRC并非进行整数倍转换时，就会出现噪音，而噪声的大小由转换器本身以及算法的优劣来决定。相比之下硬件的SRC算法会出色很多。-Sampling rate is the abbreviation of converter, if not on SRC integer times conversion, can appear noise, and the size of the noise by the converter itself and the character of the algorithm to determine the hardware of the algorithm is compared SRC will well a lot