Aquarius: rain hitting the windows

Pisces: tapping of keyboards

Aries: silence

Taurus: waves coming up onto the shore

Gemini: quiet music

Cancer: voices

Leo: loud music

Virgo: rustling of paper

Libra: white sound

Scorpio: shoes on gravel

Sagittarius: the snapping of the necks of those who think they can disrespect them

Capricorn: cats purring