Audio processor
AssigneeNXP B.V.
InventorsTemujin Gautama, Christophe Marc Macours, Bram Hedebouw
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Abstract
An audio processor and method of audio processing for an amplifier system is described. The audio processor may receive an audio signal and adapt the audio signal generating a time varying offset. The time varying offset may be combined with the audio signal resulting in a shifted the audio signal level. The processed audio signal may also be clipped to remove the negative samples values. The processed signal may be used to drive an amplifier designed to only accept positive (or negative) signals such as a class C amplifier.
Claims16
An audio processor for an amplifier system, the audio processor comprising:
- an audio processor input configured to receive an audio signal;
- and
- an audio processor output configured to be coupled to an amplifier;
- wherein the audio processor is configured to process the audio signal by:
- determining a time-varying offset value from the audio signal;
- clipping the audio signal with a clip level being determined from the time-varying offset value;
- combining the time-varying offset with the clipped audio signal;
- and
- outputting the processed audio signal on the audio processor output.
A method of audio processing for an amplifier system, the method comprising:
- providing an audio signal;
- generating a time-varying offset value determined from the audio signal;
- providing a processed audio signal by:
- clipping the audio signal with a clip level being determined from the time-varying offset value, and combining the time-varying offset value with the clipped audio signal;
- and
- outputting the processed audio signal.
Dependencies are inferred from the claim text.