The Sound of Colleagues is a white noise machine that emulates the sound of an office (minus some of the annoying sounds). It’s a straightforward free tool with adjustable sounds and ambient effects. Want to hear the sound of an open window? You got it. Tired of listening to the office dog? Mute him. Don’t want to use the Sound of Colleagues website? Familjen and Red Pip Studios also published a white noise album for Spotify. The album contains some unique sound environments, like “’90s Office with Landline Ringing” and “Rainy Day Inside the Calm Office.” You can loop these Spotify songs for endless white noise, or listen through the album one track at a time.