Abstract: A method for crest-factor based gain modification comprises sampling audio inputs to determine an energy for each input. The inputs are amplified to produce output channels. An average energy is determined for each frame by adding a percentage of a last average energy to a residual percentage of the energy. The last average energy is equal to zero for a first sampling of the audio inputs. The residual percentage is equal to one hundred minus the percentage of the last average energy. The amplifier gain is iteratively reduced by a decrease-step for a fixed period until a number of exceeding-inputs is less than or equal to a maximum. The exceeding-inputs have an average energy that exceeds a maximum-energy. The amplifier gain is iteratively increased by an increase-step for another fixed period until a number of exceeding-inputs is greater than a maximum.

Abstract: A method for crest-factor based gain modification comprises sampling audio inputs to determine an energy for each input. The inputs are amplified to produce output channels. An average energy is determined for each frame by adding a percentage of a last average energy to a residual percentage of the energy. The last average energy is equal to zero for a first sampling of the audio inputs. The residual percentage is equal to one hundred minus the percentage of the last average energy. The amplifier gain is iteratively reduced by a decrease-step for a fixed period until a number of exceeding-inputs is less than or equal to a maximum. The exceeding-inputs have an average energy that exceeds a maximum-energy. The amplifier gain is iteratively increased by an increase-step for another fixed period until a number of exceeding-inputs is greater than a maximum.