摘要
通过对AudioPak音频编码器的分析研究,本文提出了一种改进型的整系数预测技术,AudioPak只是改进型预测算法的特例.改进型整系数预测算法在频响性能上弥补了AudioPak的不足,减少了预测误差的动态范围;在预测误差均值、频谱分布、帧方差等指标方面都有不同程度的提高,从而明确了改进型预测算法的优势.
This paper presents an improved integer coefficient predictor. The improved predictive algorithm can overcome the shortage of AudioPak on frequency responses and reduces the error. Experimental studies indicate that the improved predictive algorithm presents significantly better performance than the AudioPak.
出处
《自动化技术与应用》
2005年第8期75-77,81,共4页
Techniques of Automation and Applications
