Native Instruments offers iZotope Nectar 4, a vocal mixing plugin that uses AI to analyze a user's vocal recording and automatically suggest processing settings — including EQ, compression, and pitch — and to generate synthesized backing vocal parts from a single singer's voice.

Nectar 4's Vocal Assistant listens to an audio input, analyzes dynamics, pitch register, and tonal characteristics, then sets EQ, compression, and other module parameters as a starting point for vocal mixing. The Backer module uses machine learning to generate alternative vocal personas from a single lead vocal, producing virtual background singers with different tonal qualities. Users can also import a reference vocal file (via the Audiolens tool) and the AI will match the tone and EQ of that target voice.