divede samples into frame :param samples: :param beta: parameter for kaiser window :param frame_num: :param window_length:

The number of detected push buttons, max number = 64

calcluate getSNR :param signal: signal :param noise: noise :return: SNR in log

* linear2alaw() - Convert a 16-bit linear PCM value to 8-bit A-law * * linear2alaw() accepts an 16-bit integer and encodes it as A-law data. * *

* linear2ulaw() - Convert a linear PCM value to u-law * * In order to simplify the encoding process, the original linear magnitude * is biased by addi

calculate the nearest pow2 of x :param x: :return: the nearest pow2 of x

normalize data into [-1, 1] :param data: input data :return: normalized data

pesq test :param raw_wav_path: raw speech samples file path :param deg_wav_path: degradation speech samples file path :param fs:

pesq test :param raw_wav_path: raw speech samples file path :param deg_wav_path: degradation speech samples file path :param fs: samp

per emphasis speech :param samples: sample data :param fs: sample frequency :param alpha: parameter :param overlapping: over

per emphasis speech :param samples: sample data :param fs: sample frequency :param alpha: parameter :param overlapping: overlappi

sign function :param data: :return: sign

u-law to A-law conversion */

* ulaw2linear() - Convert a u-law value to 16-bit linear PCM * * First, a biased linear code is derived from the code word. An unbiased * output ca

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