Audio system
AssigneeNXP B.V.
InventorTemujin Gautama
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Abstract
An audio system is described including an audio processor, an amplifier and a speaker and a distortion estimator. The distortion estimator calculates at least one of an expected response of the amplifier to an audio signal and an expected response of the loudspeaker to an audio signal. The distortion estimator is operable to generate a distortion prediction signal determined by a difference between an expected non-linear response of at least one of the loudspeaker and the amplifier and an expected linear response of at least one of the loudspeaker and the amplifier. A controller coupled to the audio processor and a control input of the audio processor may vary the operating parameters of the audio processor depending on the estimated distortion.
Claims15
An audio system comprising:
- an audio processor for receiving an audio input signal and outputting an audio output signal;
- an amplifier coupled to the audio processor;
- a loudspeaker coupled to the amplifier;
- a distortion estimator configured and arranged to determine an expected response of the amplifier and/or the loudspeaker to at least one of the audio input signal and the audio output signal;
- a controller coupled to the distortion estimator and the audio processor;
- wherein the distortion estimator is operable to generate a distortion prediction signal in dependence of a difference between an expected non-linear response of the loudspeaker and/or the amplifier and an expected linear response of the loudspeaker and/or the amplifier;
- and wherein the controller is configured and arranged to vary the operating parameters of the audio processor in dependence of the generated distortion prediction signal.
Dependencies are inferred from the claim text.