Adds a chorus audio effect. Adds a chorus audio effect. The effect applies a filter with voices to duplicate the audio source and manipulate it through the filter. The effect's raw signal. The voice's cutoff frequency. The voice's signal delay. The voice filter's depth. The voice's volume. The voice's pan level. The voice's filter rate. The voice's cutoff frequency. The voice's signal delay. The voice filter's depth. The voice's volume. The voice's pan level. The voice's filter rate. The voice's cutoff frequency. The voice's signal delay. The voice filter's depth. The voice's volume. The voice's pan level. The voice's filter rate. The voice's cutoff frequency. The voice's signal delay. The voice filter's depth. The voice's volume. The voice's pan level. The voice's filter rate. The amount of voices in the effect. The effect's processed signal.