Skip to main content
Version: Next

Shimmer

The shimmer of an audio signal is the cycle-to-cycle amplitude variation of the sound wave.1

Raw Variables

VariableDescription
aco_shimmerShimmer. Frame-wise measurements of shimmer.

Derived Variables

VariableDescription
aco_shimmer_meanShimmer mean. Mean of aco_shimmer across the audio file.
aco_shimmer_stdShimmer standard deviation. Standard deviation of aco_shimmer across the audio file.

  1. Horii, Y. (1980). Vocal shimmer in sustained phonation. Journal of Speech, Language, and Hearing Research, 23(1), 202-209.