In China,most of films,shown the production sound mixers' name at the beginning of the film,because in the old time here,20or 30years ago,the production sound mixer also doing the post sound design,it needs you know everything about the sound,production and post.But now,more and more filmmakers are studying the hollywood industry style,the sound designer here are used to be production mixer,now they getting older and want stay away from production,it's really hard labor on set in china,long working time and barely break time,they have family and want spend more time for the family.So usually they let their students or young guy on set,they do the post job,and now here,those hongkongness and taiwaness actors can't speak madarine very well,they have to dub vocie,ADR is more and more popular,those big budget films are using the best sound gears in the world, then in the post,they just dub all the actors' vocie.....