Patent ID: 11876497
Assignee: GOOGLE LLC
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. An audio playback device, comprising:
one or more microphones;
one or more speakers for playback of audio output;
a memory for storing a volume table, the volume table including a total number of increments between a minimum volume and a maximum volume, wherein each increment is spaced by a predetermined difference; and
one or more processors in communication with the one or more microphones and the memory, the one or more processors being configured to:
receive input from the one or more microphones;
determine a background noise level based on the received input; and
adjust a playback volume based on the determined background noise level, wherein adjusting the playback volume comprises adjusting an analog gain, which raises or lowers the playback volume an amount less than the predetermined difference, the amount calculated as a function of the determined background noise level.