摘要
本文介绍了一种在通用微机上对音频范围的实时信号数据直接进行ＦＦＴ运算的有效方法。其程序的核心部分使用了ＭＭＸ技术予以优化。因此，具有较高的运算速度与精度，实用性较强。
This paper describes an effective way of designing the real-time FFT implemented in VC++ and MASM language on PC. The program is optimized with the MMX technology. The difficult points are explained in every detail. It also offers the complete program which makes a considerable speed and precision advantage by many times over the program written in high-level languages, and the way of how to use it is given in minute description as well.
出处
《计算机应用》
CSCD
1999年第3期21-23,共3页
journal of Computer Applications
