Voice is could heighten sexual attraction.
- Deep voice
- Formant spacing
Resonance refers to the vocal quality. It is most commonly heard through singing, but also shown by speaking voice too. Most people who are good at singing also have good speaking voices. The volume of the oral cavity, the length of the vocal tract and large vocal cords all influence resonance.
A deep voice is attractive to women. However, attraction isn't just about pitch, but also formant spacing. Closer formant spacing (a more monotone voices) is more attractive to women. Also a resonant voice is also attractive to women. That's why some singers are attractive to women despite their high-pitched voice.