一种可以防止削波的混音方法

公式如下：


一般方法的效果：


本方法的效果：


简单的实现方法：

nline SInt16 TPMixSamples(SInt16 a, SInt16 b) {
    return
            // If both samples are negative, mixed signal must have an amplitude between the lesser of A and B, and the minimum permissible negative amplitude
            a < 0 && b < 0 ?
                ((int)a + (int)b) - (((int)a * (int)b)/INT16_MIN) :

            // If both samples are positive, mixed signal must have an amplitude between the greater of A and B, and the maximum permissible positive amplitude
            ( a > 0 && b > 0 ?
                ((int)a + (int)b) - (((int)a * (int)b)/INT16_MAX)

            // If samples are on opposite sides of the 0-crossing, mixed signal should reflect that samples cancel each other out somewhat
            :
                a + b);
}