I am not techy..I just came across this Buzz on Github

https://github.com/chidiwilliams/buzz

It does a good job creating subtitles. But I have few doubts in choosing these options.

(tiny - base - small - medium - large) - which one should i choose for better result?

Sorry i can't directly add pics here for reference. so using this pic host

https://ibb.co/xXMSJWq
https://ibb.co/W2Q2MZY

For the best result choose large. After correct the mistakes.

ok. thanks for the reply