基于QT实现的音乐播放器，能实现音频的变速、改变声音频带，改变音调等，通过调整参数能实现TOM猫的效果-Music player based on QT realized, can realize the shift of the audio, changing the sound frequency band, changing the tone, etc., can be achieved by adjusting the parameters TOM cat effect

变速算法对声音进行变速不变调的处理，可以进行加速和减速处理，算法简单高效。值得有兴趣的一看。(The variable speed algorithm can speed and decelerate the speed and speed, and the algorithm is simple and efficient. It's worth a look of interest.)