实现正弦编解码（Sinusoidal coding)的matlab程序 sinusoidal_analysis.m文件定义了函数[A, F, P, fs] = sinusoidal_analysis(filename, framelen, frameshiftlen)，将*.wav音频文件提取出A, F, P这3个参数矩阵。 sinusoidal_synthesis.m文件定义了函数syspeech = sinusoidal_synthesis(A, F, P, fs, framelen

Sheving EQ, 输入为fc,gain,q,fs,输出为传递系数。-Shevling EQ, input fc, gain, q, fs, output transfer coefficient.

在了解音频变调应用和思想的基础上，进一步研究和实现一种基于SOLA—FS的音频变调技术。-Understand the audio tone applications and ideas based on further study and implementation of SOLA-FS based audio modulation technology.

The procedure used by the FS MELP coder for Fourier magnitude calculations and quantizations is presented next (Figure 17.3). Inputs to the procedure are the speech data (200 samples), the LPC, and the pitch period. It is assumed that the LPC and

简单使用webrtc ns去噪模块的使用，demo是16k采样率的demo，可简单修改试用。(webrtc ns 1.int WebRtcNs_Create(NsHandle** NS_inst)2.int WebRtcNs_Init(NsHandle* NS_inst, uint32_t fs) 3.int WebRtcNs_set_policy(NsHandle* NS_inst, int mode) 4.int WebRtcNs_Process(NsHandle* NS_inst,s