python-speech-features has 270K monthly downloads and 2K GitHub stars. Version 0.6, first published in 2016.
It is showing limited recent maintenance under a permissive license, last released in Aug 2017.
It is used by 21 tracked packages, including fmot, clearvoice and ayase.
Package Insights
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100