Vocal Tremor

Vocal tremor is measured according to the methods described in this paper by Marcus Bruckl and we highly suggest reading that work to help better understand the variables below.

Raw Variables

Variable	Description
mov_freqtremfreq	Frequency tremor frequency (FTrF): Frequency of the strongest low-frequency modulation of Fundamental frequency contour.
mov_freqtremindex	Frequency tremor intensity index (FTrI): Intensity or magnitude of the strongest low frequency modulation of Fundamental frequency contour.
mov_freqtrempindex	Frequency tremor power index (FTrP): Power index of the strongest low frequency modulation of Fundamental frequency contour.
mov_amptremfreq	Amplitude tremor frequency (ATrF): Frequency of the strongest low-frequency modulation of Amplitude contour.
mov_amptremindex	Amplitude tremor intensity index (ATrI): Intensity/magnitude of the strongest low frequency modulation of Amplitude contour.
mov_amptrempindex	Amplitude tremor power index (ATrP): Power index of the strongest low frequency modulation of Amplitude contour.

Derived Variables

Variable	Description
mov_freqtremfreq_mean	Mean frequency tremor frequency (FTrF): Frequency of the strongest low-frequency modulation of Fundamental frequency contour.
mov_freqtremindex_mean	Mean frequency tremor intensity index (FTrI): Intensity or magnitude of the strongest low frequency modulation of Fundamental frequency contour.contour.
mov_freqtrempindex_mean	Mean frequency tremor power index (FTrP): Power index of the strongest low frequency modulation of Fundamental frequency contour.
mov_amptremfreq_mean	Mean amplitude tremor frequency (ATrF): Frequency of the strongest low-frequency modulation of Amplitude contour.
mov_amptremindex_mean	Mean amplitude tremor intensity index (ATrI): Intensity/magnitude of the strongest low frequency modulation of Amplitude contour.
mov_amptrempindex_mean	Mean amplitude tremor power index (ATrP): Power index of the strongest low frequency modulation of Amplitude contour.