Patent ID: 6965676

Claim:
An audio compensation system for producing a sound compensated output signal, comprising: a volume control circuit for producing a volume-adjusted signal by applying a volume adjustment to an audio signal in response to a volume setting, wherein the sound compensated output signal is responsive to the volume-adjusted signal; and circuitry for producing an amplified signal by amplifying a selected bandwith of signals in response to the volume setting, wherein the sound compensated output signal is also responsive to the amplified signal, wherein the circuitry for producing an amplified signal comprises: a logarithm estimating circuit for receiving a value in response to the volume setting and outputting a first estimated signal; circuitry for modifying the first estimated signal to form a modified signal; and an inverse logarithm estimating circuit for receiving the modified signal and outputting a second estimated signal, wherein: the sound compensation output signal is responsive to the second estimated signal, wherein the logarithm estimating circuit is a base 2 logarithm estimating circuit; the inverse logarithm estimating circuit is a base 2 inverse logarithm estimating circuit, wherein the circuitry for modifying the first estimated signal comprises circuitry for modifying the first estimated signal according to a linear modification; and the linear modification is in response to an adjustable slope value and an adjustable offset value.