I don't use Apple voices. I'm in search of a TTS synthesis from years and paid, somtimes, like 44€ for 'advanced' SAPI5 voices. But it is not what uman brain accepts, and, like apple voices, are not useful for study.

Finally, I found an economic APP that matches uman brains needs in order to be accepted and not ignored like other.

I can only export short filie from this app to MP3.

THE FEATURE TO ALLEGATIONS OF AUDIO FILE TO PDF, will solve this problem and will be useful for similar things.

Thanks for your time.