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.
Raw Variables
Variable | Description |
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aco_voiceframe | Voice frames. Number of frames in the audio where speech was detected. |
aco_totvoiceframe | Total frames. Total number of frames in the audio. |
aco_voicepct | Percentage of frames with voice. aco_voiceframe divided by aco_totvoiceframe . |
Derived Variables
Variable | Description |
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aco_voicepct_mean | Percentage of frames with voice mean. |