speechiness property
Speechiness detects the presence of spoken words in a track. The more
exclusively speech-like the recording (e.g. talk show, audio book, poetry),
the closer to 1.0 the attribute value. Values above 0.66 describe tracks
that are probably made entirely of spoken words. Values between 0.33 and
0.66 describe tracks that may contain both music and speech, either in
sections or layered, including such cases as rap music. Values below 0.33
most likely represent music and other non-speech-like tracks.
Implementation
double? speechiness;