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

Claim 0:
1. An audio playback device, comprising:
a first amplifier configured to adjust a playback volume of the device among first increments in a volume table, the volume table including a plurality of the first increments between a minimum volume and a maximum volume, wherein:
each of the plurality of first increments is spaced by a predetermined difference; and
the first amplifier is a digital amplifier;

one or more processors configured to determine a background noise level; and
a second amplifier in communication with the one or more processors, the second amplifier configured to adjust the playback volume, in response to the determined background noise level, by one or more second increments, wherein:
the second increments are smaller than the first increments;
the second amplifier is an analog amplifier; and
the second increments are calculated as a function of the determined background noise level.