Being a native speaker does not make person a pronunciation teacher. I seriously doubt that you can find a professional here who can be really helpful.
Otherwise, if your friend needs to listen to some good english, a recording of CNN news broadcast has incomparably more patience than any human being.
Podcasts do not work either. Podcasters in general talk too fast and trying to be entertaining. So, there are interruptions, music clips, sound effects etc etc
and he needs to concentrate on melodics of the language itself.
Audiobooks, however, do work. Not radio plays, but long audiobooks read by a single person, so that he can get used to his voice and establish some base level first.
It is extremely helpful if he can text of the same book printed and can read it along. There is also software to slow down music recording without changing the pitch.
It is used for recording jazz improvisations, for example. Slowing down a voice this way and trying to imitate the narrator sentence by sentence, this would be the way to go in my opinion.
Having a native speaker, who can explain you where you make mistakes is also helpful. But it is listening to audiobooks that does the trick.
Otherwise, if your friend needs to listen to some good english, a recording of CNN news broadcast has incomparably more patience than any human being.
Podcasts do not work either. Podcasters in general talk too fast and trying to be entertaining. So, there are interruptions, music clips, sound effects etc etc
and he needs to concentrate on melodics of the language itself.
Audiobooks, however, do work. Not radio plays, but long audiobooks read by a single person, so that he can get used to his voice and establish some base level first.
It is extremely helpful if he can text of the same book printed and can read it along. There is also software to slow down music recording without changing the pitch.
It is used for recording jazz improvisations, for example. Slowing down a voice this way and trying to imitate the narrator sentence by sentence, this would be the way to go in my opinion.
Having a native speaker, who can explain you where you make mistakes is also helpful. But it is listening to audiobooks that does the trick.