摘要
浊音语音可以看作是慢变化的基音周期波形的连接。文中介绍的原波形内插算法利用了浊音语音的周期性,每隔20～30ms提取一单个的基音周期波形,然后在更新点处进行内插重建语音信号。用此方法进行语音编码可大大降低编码率。
Voiced speech is interpreted as a concatenation of slowly evolving pitch cycle waveforms.Prototype waveform interpolation(PWI )algorithm described in this paper uses the periodicity of a voiced speech signal.The waveform of a single pitch cycle is transmitted at regular intervals(of20～30ms )and then interpolated between update points.With this method,speech coding rate will reduce greatly.[
出处
《电声技术》
北大核心
2003年第12期4-6,共3页
Audio Engineering
