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[New Feature] Add web folder to support web documentation

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Rudy Haryanto
2022-10-04 20:17:17 +07:00
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---
id: shimmer
title: Shimmer
---
The shimmer of an audio signal is the cycle-to-cycle amplitude variation of the sound wave.[^1]
[^1]: Horii, Y. (1980). Vocal shimmer in sustained phonation. Journal of Speech, Language, and Hearing Research, 23(1), 202-209.
## Raw Variables
| Variable | Description |
| ----------- | ----------- |
| `aco_shimmer` | **Shimmer.** Frame-wise measurements of shimmer. |
## Derived Variables
| Variable | Description |
| ----------- | ----------- |
| `aco_shimmer_mean` | **Shimmer mean.** Mean of `aco_shimmer` across the audio file. |
| `aco_shimmer_std` | **Shimmer standard deviation.** Standard deviation of `aco_shimmer` across the audio file. |