Users could therefore record and modify their own voice and implement the resulting clips in their melodies. The product allowed users to record two-second clips of any sound and play them back instantly. One of the most notable came in 1987, when Yamaha released its VSS-30 Digital Voice Sampler. In the 1980s, multiple companies released keyboards that could record and manipulate sounds and voices. We can, however, point towards a few important milestones. Both are reasonable arguments but the moment the technique was pioneered in a music-production context is more difficult to pinpoint still.
You might instead state that vocal chops were born in 1876, when Alexander Graham Bell invented the microphone. You could argue that the origins of vocal chops came in 1857, at the very moment mankind successfully proved it could record sounds.