Final answer:
Resonance that only occurs on voiced sounds involves the throat and mouth acting as a closed-pipe resonator, utilizing vocal cord vibrations and acoustic resonance to create distinct sounds with a mix of overtones.
Step-by-step explanation:
The type of resonance that can only occur on voiced sounds is related to the characteristics of a closed-pipe resonator. These sounds rely on constructive and destructive interference which leads to standing waves forming at certain resonant frequencies. The human voice uses a combination of the vocal cords' vibration and the resonance within the throat and mouth cavity to produce different sounds.
Voiced sounds involve the vibration of the vocal cords, producing a fundamental frequency which is modified by the mouth's shaping and the tongue's positioning. This process creates a unique mix of overtones and intensities, which is how we recognize different vowels and voices. The throat and mouth act as a closed-pipe resonator, which resonates in response to these vibrations, contributing to the complexity of speech and sound production.
Since unvoiced sounds don't involve vocal cord vibration, they do not resonate the same way as voiced sounds, which rely on the voice box's capability to generate a fundamental tone that resonates within the throat and mouth.