1. A method for using a sound sensor to adjust the audio output of a device, comprising: determining an initial ambient sound level for an environment in proximity to the device during a boot sequence for the device, wherein determining the initial ambient sound level comprises using the sound sensor to determine the initial ambient sound at power-on, before other noise-producing components in the device begin generating noise; subsequent to the boot sequence, using the sound sensor to determine an ambient sound level for the environment in proximity to the device; and adaptively adjusting a volume setting for the device based on the determined initial ambient sound level; and after adaptively adjusting the volume setting based on the determined initial ambient sound, adaptively adjusting the volume setting for the device based on the determined ambient sound level.