Vocal synthesizers are electronic devices or software that generate human-like singing or speaking voices. They use algorithms and sound samples to create vocal sounds, allowing users to produce music or speech without needing a human vocalist. These tools are popular in music production, video games, and virtual assistants. Many vocal synthesizers, like Vocaloid and Emvoice One, offer a range of customizable features, including pitch, tone, and expression. Users can input lyrics and melodies, and the synthesizer will produce a vocal performance that mimics a real singer. This technology has revolutionized music creation and accessibility for artists.