A metallic voice refers to a particular quality or characteristic of someone's voice that sounds artificial or robotic, resembling the tone or timbre of a metal object. It is often described as having a hollow, tinny, or resonant quality, lacking the warmth and naturalness typically associated with human speech. This type of voice may be the result of various factors, such as technological distortion in audio recordings or playback, certain medical conditions affecting vocal cords, or intentional modulation for artistic or creative purposes. In the context of audio technology, metallic voices can be produced using voice synthesis software or vocoders, which manipulate sound signals to create a metallic or robotic effect.