Patent ID: 8280088

Claim:
A hearing apparatus, comprising a signal input device that receives an acoustic input signal and generates an output signal; a signal processing device that processes the output signal from the device to produce an output signal; a plurality of system modules coupled in parallel circuit to receive the output signal from the signal processing device; a cross-fader coupled to receive and selectively provide cross-fading to respective output signals from the plurality of system modules to supply a cross-fader output signal, wherein the cross-fader is configured to selectively effect a change by way of cross-fading from an output signal from at least one of the plurality of system modules to an output signal from at least another of the plurality of system modules; an oscillation signal analyzer that: analyzes a resonant behavior of the hearing apparatus as a function of a modification of the signal processing device, wherein said modification causes a change in the cross-fader output signal, wherein the cross-fader is responsive to a control signal from the oscillation signal analyzer to effect said change, and measures an oscillation in a feedback signal; and a signal output device coupled to receive the cross-fader output signal, wherein the signal output device converts the cross-fader output signal to an acoustic output of the hearing apparatus, wherein the change from the output signal from said at least one of the plurality of system modules to the output signal from said at least another of the plurality of system modules is inaudibly in the acoustic output of the hearing apparatus due to the cross-fading provided by the cross-fader to the respective output signals from the plurality of system modules.