
I didn't understand the sound in that recorder ?

Yodard essentially answered your question already, but if you'd like some additional information, I've added a link below to a previous post I made on the topic. Hopefully it helps!
http://www.mangago.zone/home/mangatopic/3707679/

Bina is the worst ever ! she is from 21 century from peaceful country how can she put an horrible sheme and use people like a tool ? the others were rise like that all their life but not her ! one year was enough to became an equal to that awfull queen in evilness; when the made bowed 180 degree to bina she was all satisfited !!!! now Iam here master !!!! grrr disgusted .
lost interest .