通过改变频率来改变音乐的音调，升调或降调都可以。另外还有移相（phaser.c)及反相(reverse.c)两个源程序文件-by changing the frequency to change the tone music, or transfer or demotion can. Another phase shifter (phaser.c) and RP (reverse.c) 2 source files

音频处理程序，能够修改音频数据的音调等信息-A utility that can modify wav files to change the playing time of an audio clip, and transpose or scale the pitch of the clip. Great for audio book enthusiasts, and music lovers. Time shifting. DSP. Pitch Scaling.

基于Bass音频库实现的音乐实时改变音调和速度播放的程序。支持大多数音频格式。-Based on Bass audio library of music to achieve real-time changes the pitch and speed of the playback program. It supports most audio formats.