Patent ID: 9084061
Filing Date: 2015-07-14
Classification: H04R

Abstract:
1. A method of improving quality of an audio circuit, the method comprising: configuring the audio circuit to monitor the state of an output subsystem for driving an output transducer based on a system clock, the output transducer for outputting audio sound; configuring the audio circuit to monitor an event affecting the frequency of the system clock; and configuring the audio circuit to, in response to the event, synchronize the timing of the change of the clock frequency based on the state of the output subsystem to reduce or eliminate audio artifacts including configuring the audio circuit to initiate the change of the clock frequency in response to the state of the output subsystem, and in response to the state of the output subsystem indicating possible audio artifacts, modify the state of the output subsystem to create the timing of the change of the clock frequency.