注意图下边这段话:
“The module includes a pitch envelope generator (PEG) that time-modulates the pitch, an amplitude envelope generator (AEG) that time-modulates the volume, and a filter envelope generator (FEG) that time-modulates the low-pass-filter's cutoff frequency. An LFO (low frequency oscillator) implements periodic modulation of pitch, filtering, and volume.”
翻译过来大概是这样:
“本模型中还包括一个可以随时间变化调节音高的音高包络发生器(PEG),一个随时间变化调节振幅的振幅包络发生器(AEG),和一个随时间变化调节低通滤波器截止频率的滤波包络发生器(FEG)。同时,模型中还有一个低频振荡器(LFO),为音高、滤波器和音量提供周期性的调制信号。”