Closed Captioning similar to Youtube

Hi there
I am looking for a software that does automatic captioning for an audio file when played in a player, similar to youtube captioning.
I think that could assist and save time for transcriptioning work.
Please reply.
thanks and regards
prabs

no hidden message

ahem, this ended up on a different page than it was supposed to. Does this always happen when you have several pages on SDMB open?
Sorry…