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Entwicklung und Implementierung eines einkanaligen adaptiven, akustischen Rückkopplungsunterdrückers auf Notchfilterbasis für den Musik-Liveeinsatz

Authors Göttlinger, C.
Year 2008
Thesis Type Audio Engineering project
Topic Audio Signal Processing
Abstract Development and implementation of an adaptive, single-channel acoustic feedback-suppressor for live-music applications. An extensive literature research is followed by evaluations and a problem verification with simulations and measurements. The presence of feedback will be evaluated continuously without using additional measurement signals. A reliable suppression with low objective signal degradation is the aim of this project. The signal degradation will be evaluated by the ”Bark Spectral Distortion”(BSD)-measure . An adaptive control of the system is required because of the time-variant characteristic of the transfer function. The initial development of the algorithms is carried out in MATLAB TM . The convergence behavior under simulated real-world conditions will be evaluated in Pure Data (PD).
Supervisors Sontacchi, A.