Our lives are full of sounds. The rumble of car engines, a particular birdsong, the 'ding' of phone alerts, even the voices of our friends and family — these everyday noises become so regular we don't even consider that you might hear them one day and then never hear them again. This week, KQED's Rachael Myrow takes back in time to track down some of the lost sounds of San Francisco.

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This story was reported by Rachael Myrow. Bay Curious is made by Olivia Allen-Price, Amanda Font, Ana De Almeida Amaral and Christopher Beale. Additional support from Jen Chien, Maha Sanad, Katie Sprenger, Holly Kernan and the whole KQED family.

Which San Francisco Sounds Are Lost to Time?