Based on multi-band FFT algorithm design dynamic feedback suppressor

Application-notch filter implementation feedback suppression, the self-excited frequency estimation accuracy crucial. based on multi-band FFT dynamic feedback suppression algorithm has a robust strong, self induced frequency estimation accuracy is high, calculate the advantages of moderate algorithm use a 32-bit floating point capabilities of SHAC series DSP processor ADSP21262 implementation, has guaranteed the algorithm calculation accuracy. test results indicate that the prototype entirely meets the simulation design requirements.