Complex sentence: Signal processing algorithms are applied to voice recordings made during sustained phonation or during speech, and can be used to measure acoustic parameters such as fundamental frequency, signal amplitude, jitter, shimmer, and noise-to-harmonic ratios.
Split into simpler sentences: Signal processing algorithms are applied to voice recordings made during sustained phonation or during speech. The acoustic parameters which can be examined include fundamental frequency, signal amplitude, jitter, shimmer, and noise-to-harmonic ratios.