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Voice Prevalence

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

VariableDescription
aco_voiceframeVoice frames. Number of frames in the audio where speech was detected.
aco_totvoiceframeTotal frames. Total number of frames in the audio.
aco_voicepctPercentage of frames with voice. aco_voiceframe divided by aco_totvoiceframe.

Derived Variables

VariableDescription
aco_voicepct_meanPercentage of frames with voice mean.