其他:
sc0ty/subsync: does speech-to-text and looks for matching word morphemes
tympanix/subsync: neural net based approach that optimizes directly for alignment when performing speech detection
oseiskar/autosubsync: performs speech detection with bespoke spectrogram + logistic regression
pums974/srtsync: similar approach to ffsubsync (WebRTC's VAD + FFT to maximize signal cross correlation)