Aprender inglês escutando o áudio e fazendo transcrição

I think so, generally speaking. I mean, it´s good to have the transcription and the sound going togheter, as in the Speak Up magazine, where you have both. So, if you are doing the listening you can hit the stop key and read on the mag.

Watching DVD movies with subtitles is good as well, only that you need some discipline, I mean, sometimes you want to watch all the film in a sitting, or perhaps you are get more interested in the plot than in the pronounce etc...

I must admit that the talking is closely associated with the listening, since when you talk to somebody with a higher level of English than you, he/she can tell you which sounds you aren´t making the right way.

Not that I know much on that, I am just a student like you are. But I do buy that version of facts from what I have conversed with some teachers.