Only coding parameters of sound generation model • LPC is an example where parameters are a1, a2, …ak , e(n) • Music instrument parameters: pitch, loudness, timbre, …Frequency Masking: If a tone of a certain frequency and amplitude is

采用自相关函数法和平均幅度差函数法以及改进的平均幅度差函数法求一段音频的基音-Using the correlation function method and average magnitude difference function method and improved average magnitude difference function method for an audio pitch