In the beginning, scientists found that men prefer women who have a high “feminine” voice. Marilyn Monroe is a great example of the ideal voice. The least attractive voice is a squeaky voice like Kim Kardashian’s and Ellen Page’s.
This is because high feminine voices are associated with youth, which equates with attractiveness. Older women often have squeaky voices.
Another research showed that men prefer women who speak in a similar manner to theirs. This is about the way certain words and letters are pronounced, the pace of speech and other details.