translation.en: is a constant. When the frequency goes up, the wavelength comes down. Wavelength goes up, frequency goes down. So, if we have a wave here -- over here, that's what's interesting -- as the pitch goes up, things get closer, pitch goes down, things stretch out.
translation.zh: 是一个常量。当频率变大， 波长减小。当波长增大 频率变小。所以我们这里有一个波─ 看这里，这是一个很有趣的现象─ 当音频变高时，波跟波之间的距离变小 当音频变低时，波跟波之间的距离拉大了。