Listen to Voices, Mixed, Couple, Observing Sound Effect online. Voices, Mixed, Couple, Observing Sound Effect is an English language song and is sung by Pro Sound Effects Suite. Voices, Mixed, Couple, Observing Sound Effect, from the album Pro Sound Effects Suite 34 - Voices, Vocals and Group Sounds, was released in the year 2007. The duration of the song is 0:12. Download English songs online from JioSaavn.