Variable attack and release system and method
OwnerKarl M. Bizjakinventor
Life of this patent
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Abstract
Variable attack and release system and method are disclosed for dynamically modifying the various elements of the system, including modifying compander response time to dynamically adjust for changing parameters such as environmental or input signal changes, to maintain output signals within predetermined limits. The system and method include permitting accurate and quick response to noise sources having a duration which exceeds a predetermined threshold while at the same time ignoring transient or short duration environmental noise.
Claims64
A signal processor system comprising
- a power estimation signal,
- a variable attack and release stage for detecting changes in amplitude of the power estimation signal relative to time,
- comparing the changes in amplitude relative to time to a first criteria,
- applying a first algorithm if the change in amplitude does not meet the first criteria,
- applying a second algorithm if the change in amplitude does meet the first criteria.
A variable attack and release processor having an output comprising
- an input signal,
- a feedback signal,
- a comparison stage for providing as a comparison signal a comparison of the input signal and the feedback signal, and
- a first stage for applying, in accordance with a first characteristic of the comparison signal, a first algorithm, and providing a first stage output signal in accordance therewith.
A variable attack and release processor having an output comprising
- an input signal,
- a feedhack signal,
- a comparison stage for providing as a comparison signal a comparison of the input signal and the feedback signal, and
- a tracking filter responsive to an output of the comparison stage for producing an output in accordance therewith wherein,
- the comparison of the input signal and feedback signal includes a comparison of amplitudes.
A variable attack and release processor having an output comprising
- an input signal.
- a feedback signal.
- a comparison Stage for providing as a comparison signal a comparison of the input signal and the feedback signal, and
- a tracking filter responsive to an output of the comparison stage for producing an output in accordance therewith, wherein
- the output of the tracking filter is representative of a power estimate.
A variable attack and release processor having an output comprising
- an input signal,
- a feedback signal,
- a comparison state for providing as a comparison signal a comparison of the input signal and the feedback signal wherein the comparison signal is a variable, and
- a tacking filter responsive to an output of the comparison stage for producing an output in accordance therewith, wherein
- a transform stage receives the comparison signal and provides a transform signal to the tacking filter.
A variable attack and release processor having an output comprising
- an input signal,
- a feedback signal,
- a comparison stage for providing as a comparison signal a comparison of the input signal and the feedback signal, wherein the comparison signal is a logic signal, and
- a tracking filter responsive to an output of the comparison stage for producing an output in accordance therewith wherein
- a first stage receives the comparison signal and provides a first stage output to the tracking filter.
A variable attack and release processor having an output comprising
- an input signal,
- a feedback signal,
- a comparison stage for providing as a comparison signal a comparison of the input signal and the feedback signal, and
- a tracking filter responsive to an output of the comparison stage for producing an output in accordance therewith, wherein
- the comparison signal comprises both a variable and a logic signal.
A variable attack and release processor having an output comprising
- an input signal,
- a feedback signal,
- a comparison stage for providing as a comparison signal a comparison of the input signal and the feedback signal, and
- a tracking filter responsive to an output of the comparison stage for producing an output in accordance therewith, wherein
- the tracking filter comprises a plurality of tracking filters.
A signal processor comprising
- a power estimation signal
- a variable attack and release stage for detecting changes in amplitude of the power estimation signal relative to time,
- comparing the changes in amplitude relative to time to a first predetermined threshold,
- applying a first correction factor if the change in amplitude does not exceed the first predetermined threshold,
- applying a second correction factor if the change in amplitude exceeds the first predetermined threshold.
A variable attack and release processor having an output comprising
- an input signal,
- a feedback signal,
- a comparison stage for providing as a comparison signal a comparison of the input signal and the feedback signal, and
- a tracking filter responsive to an output of the comparison stage for producing an output in accordance therewith, wherein the input signal is a noise signal.
Dependencies are inferred from the claim text.