The RPE LTP(Regular Pulse Excitation Long Term Prediction) coder scheme recommended by ETSI(European Technology Specification Institute) is a complicated algorithm,which is already applied to GSM full rate traffic channel with encoding at 13kbit/s.

• ETSI 0 6 .；10规范中建议编码速率为 13kbit/ s的 RPE- L TP编码方案；是一种运算复杂的算法；用于泛欧 GSM全速率业务信道的低码率语音编码器。