This is typically a vocal track or a rhythmic sound like a drum loop. The vocoder does not "hear" the pitch of the modulator; instead, it analyzes its harmonic envelope and volume levels. The Carrier (The "Sound"):
For the effect to work, the Vocoder needs to "hear" both tracks simultaneously: Sidechaining: magix vocoder effects work
The Vocoder takes the characteristics of your voice (the Modulator) and imposes them onto the synth (the Carrier). The result? A singing synthesizer that sounds like a robot. This is typically a vocal track or a