摘要
采用一个新的MP3编码方案,针对16位定点DSP的特性对算法进行了优化。方法包括帧间动态时间分配策略,用于计算非线性函数的优化的多项式逼近算法,以及快速的Huff-man码表存取方案。采用这些优化方法后,实现了基于16位定点DSP芯片的实时MP3编码器。
In this paper,weadopt a novel MP3encoding architecture.And according to the characteristic of16-bit fixed-point DSP we present some optimized arithmetic,including dy-namic time allocation among frames,polynomial approach arithmetic to calculate the non-linear functions and fast Huffman Encoding.Using these methods,we implemented a real-time MP3encoder based on a16-bit fixed-point DSP.[
出处
《电声技术》
北大核心
2002年第9期12-14,共3页
Audio Engineering
