Listen to Intro (Infected) [Sped Up + Extended] (Sped Up + Extended) online. Intro (Infected) [Sped Up + Extended] (Sped Up + Extended) is an English language song and is sung by Linear Phase. Intro (Infected) [Sped Up + Extended] (Sped Up + Extended), from the album Intro (Infected) (Sped Up + Extended), was released in the year 2023. The duration of the song is 7:27. Download English songs online from JioSaavn.