语音CELP压缩解压源代码（C语音)- Pronunciation CELP compression decompression source code (C pronunciation) - * 4800 bps CELP Characteristics * * Spectrum Pitch Code Book * ------------- ---------------

CZT运算是在z域以任意螺线采样，源码采用512点做CZT运算求出频域最大值-CZT operation is in the Z domain to arbitrary spiral sampling, the source code using 512 points to do CZT operations to calculate the maximum frequency