In "Backtrack," the haunting echoes of the past are brought to life through the intricate soundscape crafted by the talented sound team. Robert Mackenzie, as the Re-Recording Mixer, plays a pivotal role in weaving together the film's auditory elements, creating an immersive experience that blurs the line between reality and the supernatural. The film's sound design, recognized with the Australian Screen Sound Guild's 2016 ASSG Award for Feature Film Soundtrack of the Year, envelops the audience in a world where whispers of the past linger, and the truth is revealed through layers of meticulously mixed sound.