20 lines
788 B
Markdown
20 lines
788 B
Markdown
---
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id: voice-prevalence
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title: Voice Prevalence
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---
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Using knowledge on which audio frames do and do not contain voice, the prevalence of voice as opposed to silence across the audio file is also calculated simply as a derived variable.
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## Raw Variables
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| Variable | Description |
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| ----------- | ----------- |
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| `aco_voiceframe` | **Voice frames.** Number of frames in the audio where speech was detected. |
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| `aco_totvoiceframe` | **Total frames.** Total number of frames in the audio. |
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| `aco_voicepct` | **Percentage of frames with voice.** `aco_voiceframe` divided by `aco_totvoiceframe`. |
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## Derived Variables
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| Variable | Description |
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| ----------- | ----------- |
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| `aco_voicepct_mean` | **Percentage of frames with voice mean.** | |