Use "second voice" in a sentence

1. Their roles may also involve singing, although a second voice actor is sometimes cast as the character's singing voice.

2. Advanced Arranger features – Unlimited variations number – AUTO FILL IN – SYNC START – SYNC STOP – TAP TEMP – TEMPO LOCK – OCTAVE – TRANSPOSE – MANUAL BASS – BASS TO LOWEST – SECOND VOICE – RESTART – HOLD – FADE IN – FADE OUT – SPLIT POINT