Male in Female Voice
Transsexuals, they can dress, but the moment they open their mouths, a truck driver comes out.
In fact, you find sites that teach about how to speak like women. Extremely interesting. Just search for “male female voice” or “Voice Feminization”.
No, it's not just pitch. But, the way sound is modulated, or something like that, as well as the grammar differences, diction, intonation, pitch change frequency.
Chinese Male in Female Voice
Chinese voice actor, demonstrating female voice and other multiple voices.
Singing, Male Voice, or Female Voice
Here's some examples of male singers, who can sing in both male and female voice.
Li Yugang (Chinese: 李玉刚;; pinyin: Lǐ Yùgāng) is a singer and a performer in the National Opera and Dancing company of China; a member of the National Youth Federation. He specialises in “nan dan” role, which is male who plays female role in Peking opera. Li Yugang has released a number of CDs.
《傷心酒店》 (Heartbreak Inn)