Audio processing circuit, audio unit and method for audio signal blending
AssigneeNXP B.V.
InventorsTemujin Gautama, Joris Luyten
Life of this patent
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Abstract
An audio processing circuit is described. The audio processing circuit includes at least one input configured to receive a primary audio signal and a feature generation signal. A feature model estimation circuit is configured to model and output a feature model signal of the primary audio signal. A feature generation circuit is coupled to the feature model estimation circuit and is to receive the feature model signal and the feature generation signal and, in response to the feature model signal, modify the feature generation signal; and output a modified representation of the feature generation signal that is more similar to the primary audio signal.
Claims14
An audio processing circuit characterised by:
- at least one input configured to receive a primary audio signal and a feature generation signal;
- a feature model estimation circuit configured to model a feature in a primary audio signal and output a feature model signal of the primary audio signal;
- and
- a feature generation circuit coupled to the feature model estimation circuit and configured to receive the feature model signal and the feature generation signal and, in response to the feature model signal:
- modify the feature generation signal;
- and
- output a modified representation of the feature generation signal that is more similar to the primary audio signal.
An audio unit that includes an audio processing circuit, the audio processing circuit comprising:
- at least one input configured to receive a primary audio signal and a feature generation signal;
- a feature model estimation circuit configured to model a feature in a primary audio signal and output a feature model signal of the primary audio signal;
- and
- a feature generation circuit coupled to the feature model estimation circuit and configured to receive the feature model signal and the feature generation signal and, in response to the feature model signal:
- modify the feature generation signal;
- and
- output a modified representation of the feature generation signal that is more similar to the primary audio signal.
A method of spectrum blending in an audio unit, the method comprising:
- receiving a primary audio signal and a feature generation signal;
- modelling a feature in the primary audio signal;
- outputting a feature model signal of the primary audio signal;
- receiving the feature model signal and the feature generation signal at a feature generation circuit and, in response to the feature model signal:
- modifying the feature generation signal;
- and
- outputting a modified representation of the feature generation signal that is more similar to the primary audio signal.
Dependencies are inferred from the claim text.