Patent ID: 9184705
Filing Date: 2015-11-10
Classification: H03F

Abstract:
1. A method for amplifying audio signals, the method comprising: processing, by a signal processor, incoming audio samples in preparation for amplification by an electronic amplifier circuit; receiving a voltage from a power supply; estimating, before the signal processor completes processing the incoming audio samples, an input level based on the incoming audio samples; determining, in response to a comparison between the estimated input level and a first threshold value, whether to boost the voltage received from the power supply; estimating, after the signal processor completes processing the incoming audio samples, an output level based on the processed audio samples; and determining, in response to the estimated output level, whether to adjust the first threshold value used to determine whether to boost the voltage received from the power supply, the determining of whether to adjust the first threshold value comprising: comparing a result of the comparison between the estimated output level and the second threshold value with a result of the comparison between the estimated input level and the first threshold value; and adjusting the first threshold value if the results differ.