论文部分内容阅读
随着数字音频发展,心理声学原理被应用到音频压缩技术中,以获得低比特传输速率和透明音质。分析先进音频编码器(AAC)的编码原理,主要介绍心理声学模型的改进音调探测方法,并给出了其实验结果。此方法对实时实现音频编码器的研究具有重要意义。
With the development of digital audio, the psychoacoustic principle is applied to audio compression technology to obtain low bit rate and transparent sound quality. This paper analyzes the encoding principle of advanced audio encoder (AAC), mainly introduces the improved pitch detection method of psychoacoustic model, and gives the experimental results. This method is of great significance for real-time audio encoder research.