Siri is your personal assistant on your iPhone and other iOS devices. Siri Voice, regardless of its language, can be either set to Man or Female. To change Siri voice on iPhone 5, do as follows:
1. Open the Settings and go to the General settings
2. Tap to open the Siri settings (it's after "About" and "Software Update" in the menu)
3. Tap the Siri Voice option and choose between Male or Female as the voice of Siri on your iPhone 5 and other iPhone, iPad and iPod Touch devices.